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Failure when calling __str__ for MIMEBase(message, rfc822) objects #45897

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hsp mannequin opened this issue Dec 5, 2007 · 3 comments
Closed

Failure when calling __str__ for MIMEBase(message, rfc822) objects #45897

hsp mannequin opened this issue Dec 5, 2007 · 3 comments
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stdlib Python modules in the Lib dir type-crash A hard crash of the interpreter, possibly with a core dump

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@hsp
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Mannequin

hsp mannequin commented Dec 5, 2007

BPO 1556
Nosy @facundobatista
Files
  • MimebaseError.py
    		•

    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 2008-06-21.21:12:41.230>
created_at = <Date 2007-12-05.15:51:16.608>
labels = ['invalid', 'library', 'type-crash']
title = 'Failure when calling __str__ for MIMEBase(message, rfc822) objects'
updated_at = <Date 2008-06-21.21:12:41.229>
user = 'https://bugs.python.org/hsp'

    bugs.python.org fields:

    activity = <Date 2008-06-21.21:12:41.229>
actor = 'facundobatista'
assignee = 'none'
closed = True
closed_date = <Date 2008-06-21.21:12:41.230>
closer = 'facundobatista'
components = ['Library (Lib)']
creation = <Date 2007-12-05.15:51:16.608>
creator = 'hsp'
dependencies = []
files = ['8879']
hgrepos = []
issue_num = 1556
keywords = []
message_count = 3.0
messages = ['58216', '68542', '68546']
nosy_count = 3.0
nosy_names = ['facundobatista', 'hsp', 'elachuni']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = None
status = 'closed'
superseder = None
type = 'crash'
url = 'https://bugs.python.org/issue1556'
versions = ['Python 2.6', 'Python 2.5']
    @hsp
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    Mannequin Author

    hsp mannequin commented Dec 5, 2007

    When creating a MIMEBase object with message/rfc822 mimetype invoking
    the objects __str__ method results in an exception.
    Even if this behaviour should be intended the error message "TypeError:
    Expected list, got <type 'str'>" is not helpful.
    To reproduce the problem run the attached script after creating the file
    'test.eml' in the script's directory.

        mimetype = mimetypes.guess_type(filename)[0]
    maintype, subtype = mimetype.split('/')
    attachment = MIMEBase(maintype, subtype)
    attachment.set_payload(file(filename).read( ))
    print attachment
    #python MimebaseError.py                                               
                                                                       
             [1]
message/rfc822
Traceback (most recent call last):
  File "MimebaseError.py", line 19, in <module>
    main()
  File "MimebaseError.py", line 16, in main
    print attachment
  File "email/message.py", line 116, in __str__
  File "email/message.py", line 131, in as_string
  File "email/generator.py", line 84, in flatten
  File "email/generator.py", line 109, in _write
  File "email/generator.py", line 135, in _dispatch
  File "email/generator.py", line 266, in _handle_message
  File "email/message.py", line 185, in get_payload
TypeError: Expected list, got <type 'str'>

    @hsp hsp mannequin added stdlib Python modules in the Lib dir type-crash A hard crash of the interpreter, possibly with a core dump labels Dec 5, 2007
    @elachuni
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    Mannequin

    elachuni mannequin commented Jun 21, 2008

    I don't really think the MIMEBase class is supposed to be used like
    this, or at all: it behaves more like a Multipart message in that it
    expects to carry a list of MIMEBase objects as a payload (not a string!)
    though it doesn't define a boundary by default.

    You can carry on using the MIMEBase class, but changing the line that says:

    attachment.set_payload(file(filename).read( ))

    for:

    attachment.set_payload([MIMEText(file(filename).read())])

    I'd recommend you to use:

        attachment = Message()
    attachment.set_payload(file(filename).read())

    or if you want a multipart message:

        attachment = MIMEMultipart()
    text = MIMEText(file(filename).read())
    attachment.attach(text)

    @facundobatista
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    Member

    I agree with Anthony. If you have any further questions regarding how to
    use this library feel free to ask them in python-list.

    @ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
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