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Infinite recursion in email.message.as_string() #76363

Closed
SillaRizzoli mannequin opened this issue Nov 30, 2017 · 5 comments
Closed

Infinite recursion in email.message.as_string() #76363

SillaRizzoli mannequin opened this issue Nov 30, 2017 · 5 comments
Labels
3.7 (EOL) end of life topic-email type-bug An unexpected behavior, bug, or error

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@SillaRizzoli
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Mannequin

SillaRizzoli mannequin commented Nov 30, 2017

BPO 32182
Nosy @warsaw, @bitdancer

Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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GitHub fields:

assignee = None
closed_at = <Date 2017-12-04.00:53:35.540>
created_at = <Date 2017-11-30.14:59:00.450>
labels = ['type-bug', '3.7', 'expert-email']
title = 'Infinite recursion in email.message.as_string()'
updated_at = <Date 2017-12-04.00:53:35.538>
user = 'https://bugs.python.org/SillaRizzoli'

bugs.python.org fields:

activity = <Date 2017-12-04.00:53:35.538>
actor = 'r.david.murray'
assignee = 'none'
closed = True
closed_date = <Date 2017-12-04.00:53:35.540>
closer = 'r.david.murray'
components = ['email']
creation = <Date 2017-11-30.14:59:00.450>
creator = 'Silla Rizzoli'
dependencies = []
files = []
hgrepos = []
issue_num = 32182
keywords = []
message_count = 5.0
messages = ['307319', '307325', '307386', '307391', '307533']
nosy_count = 3.0
nosy_names = ['barry', 'r.david.murray', 'Silla Rizzoli']
pr_nums = []
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue32182'
versions = ['Python 3.6', 'Python 3.7']
@SillaRizzoli
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Mannequin Author

SillaRizzoli mannequin commented Nov 30, 2017

Sometimes RFC-correct email headers do not get folded correctly; the example code below results in an infinite recursion exception.

import sys
import mailbox
from email.message import EmailMessage
from email.headerregistry import Address
from email import policy

ePol = policy.SMTP.clone(refold_source='long',max_line_length=78)
msg = EmailMessage(ePol)
msg['From'] = Address("abcdefgh ijklnopq","a.ijklnopq","antani.com")
msg['To'] = (Address("abcdef.ghijklmno@pqrstuvwxyz12345678.it","abcdef.ghijklmnop","pqrstuvwxyz12345678.it"), Address("Jane Doe", "jane", "doe.com"))
msg['Subject'] = "Test"
msg.set_content("Body")
finalMail = msg.as_string()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3.6/email/message.py", line 968, in as_string
    return super().as_string(maxheaderlen=maxheaderlen, policy=policy)
  File "/usr/lib/python3.6/email/message.py", line 158, in as_string
    g.flatten(self, unixfrom=unixfrom)
  File "/usr/lib/python3.6/email/generator.py", line 116, in flatten
    self._write(msg)
  File "/usr/lib/python3.6/email/generator.py", line 195, in _write
    self._write_headers(msg)
  File "/usr/lib/python3.6/email/generator.py", line 222, in _write_headers
    self.write(self.policy.fold(h, v))
  File "/usr/lib/python3.6/email/policy.py", line 183, in fold
    return self._fold(name, value, refold_binary=True)
  File "/usr/lib/python3.6/email/policy.py", line 205, in _fold
    return value.fold(policy=self)
  File "/usr/lib/python3.6/email/headerregistry.py", line 255, in fold
    return header.fold(policy=policy)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 300, in fold
    self._fold(folded)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 1226, in _fold
    rest._fold(folded)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 338, in _fold
    if folded.append_if_fits(part, tstr):
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 149, in append_if_fits
    token._fold(self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 325, in _fold
    tstr = str(part)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in __str__
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in <genexpr>
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in __str__
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in <genexpr>
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in __str__
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in <genexpr>
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in __str__
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in <genexpr>
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in __str__
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in <genexpr>
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in __str__
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in <genexpr>
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in __str__
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in <genexpr>
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in __str__
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in <genexpr>
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in __str__
    return ''.join(str(x) for x in self)
  File "/usr/lib/python3.6/email/_header_value_parser.py", line 196, in <genexpr>
    return ''.join(str(x) for x in self)
RecursionError: maximum recursion depth exceeded while calling a Python object

@SillaRizzoli SillaRizzoli mannequin added type-crash A hard crash of the interpreter, possibly with a core dump topic-email labels Nov 30, 2017
@bitdancer
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This is almost certainly either a duplicate or will be fixed by a PR I have pending, that I don't have time to look for right now, that rewrites the folder. I'll try to get to merging that PR soonish, but it might not happen before the holidays ;)

@SillaRizzoli
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SillaRizzoli mannequin commented Dec 1, 2017

Ok, thanks!
I'm writing a program to convert Outlook for Mac backup files (.olm) into
plain mbox files as a way to teach myself Python (and at the same time
regain control of my email), so I have tens of thousand of emails to test
your new code on, if you feel you need some fedback before releasing it.

Best regards,
Silla

On Thu, Nov 30, 2017 at 5:19 PM, R. David Murray <report@bugs.python.org>
wrote:

R. David Murray <rdmurray@bitdance.com> added the comment:

This is almost certainly either a duplicate or will be fixed by a PR I
have pending, that I don't have time to look for right now, that rewrites
the folder. I'll try to get to merging that PR soonish, but it might not
happen before the holidays ;)

----------

Python tracker <report@bugs.python.org>
<https://bugs.python.org/issue32182\>

@bitdancer
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It is #47738 if you want to try it out. Feedback welcome.

@bitdancer
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I checked, and your example works correctly with the patch applied. I've committed the PR. Let me know if you find any other issues (there are several open issues with exactly how headers are wrapped, but I don't think there are any open where serialization fails completely.)

@bitdancer bitdancer added the 3.7 (EOL) end of life label Dec 4, 2017
@bitdancer bitdancer added type-bug An unexpected behavior, bug, or error and removed type-crash A hard crash of the interpreter, possibly with a core dump labels Dec 4, 2017
@ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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