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mimetypes.MimeType UnicodeDecodeError #65337

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tanbro mannequin opened this issue Apr 3, 2014 · 5 comments
Closed

mimetypes.MimeType UnicodeDecodeError #65337

tanbro mannequin opened this issue Apr 3, 2014 · 5 comments
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@tjguk
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stdlib Python modules in the Lib dir type-bug An unexpected behavior, bug, or error

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@tanbro
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tanbro mannequin commented Apr 3, 2014

BPO 21138
Nosy @terryjreedy, @tjguk

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 = 'https://github.com/tjguk'
closed_at = <Date 2014-04-29.12:42:31.321>
created_at = <Date 2014-04-03.01:39:20.196>
labels = ['type-bug', 'library']
title = 'mimetypes.MimeType UnicodeDecodeError'
updated_at = <Date 2014-04-29.12:42:31.320>
user = 'https://bugs.python.org/tanbro'

bugs.python.org fields:

activity = <Date 2014-04-29.12:42:31.320>
actor = 'tim.golden'
assignee = 'tim.golden'
closed = True
closed_date = <Date 2014-04-29.12:42:31.321>
closer = 'tim.golden'
components = ['Library (Lib)']
creation = <Date 2014-04-03.01:39:20.196>
creator = 'tanbro'
dependencies = []
files = []
hgrepos = []
issue_num = 21138
keywords = []
message_count = 5.0
messages = ['215414', '215418', '216988', '217010', '217515']
nosy_count = 4.0
nosy_names = ['terry.reedy', 'tim.golden', 'python-dev', 'tanbro']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue21138'
versions = ['Python 2.7']
@tanbro
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tanbro mannequin commented Apr 3, 2014

when new a mimetypes.MimeType instance in a my Windows, whose default coding is mbcs, UnicdeDecodeError occurred.

Python 2.7.6 (default, Nov 10 2013, 19:24:18) [MSC v.1500 32 bit (Intel)] on win
32
Type "help", "copyright", "credits" or "license" for more information.
>>> from mimetypes import MimeTypes
>>> mt = MimeTypes()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "D:\Python27\lib\mimetypes.py", line 66, in __init__
    init()
  File "D:\Python27\lib\mimetypes.py", line 358, in init
    db.read_windows_registry()
  File "D:\Python27\lib\mimetypes.py", line 258, in read_windows_registry
    for subkeyname in enum_types(hkcr):
  File "D:\Python27\lib\mimetypes.py", line 249, in enum_types
    ctype = ctype.encode(default_encoding) # omit in 3.x!
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc7 in position 8: ordinal
not in range(128)

i think this error was caused by the code in mimetypes.py's line 256

default_encoding = sys.getdefaultencoding() 

if change this line to:

default_encoding = sys.getfilesystemencoding()

such error will be resolved

@tanbro tanbro mannequin added stdlib Python modules in the Lib dir type-bug An unexpected behavior, bug, or error labels Apr 3, 2014
@tanbro
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tanbro mannequin commented Apr 3, 2014

and in line 249, changes:

if isinstance(ctype, unicode):
    ctype = ctype.encode(default_encoding) # omit in 3.x!

@terryjreedy
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The unlinked push message was for bpo-21139.

@tjguk
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tjguk commented Apr 22, 2014

This looks like a duplicate of bpo-9291; could you test the latest patch over there, please?

@tjguk tjguk self-assigned this Apr 22, 2014
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tjguk commented Apr 29, 2014

Fixed by bpo-9291

@tjguk tjguk closed this as completed Apr 29, 2014
@ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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