[New-bugs-announce] [issue1822] email.mime.multipart.MIMEMultipart.is_multipart() returns false before items have been added.
report at bugs.python.org
Mon Jan 14 11:54:57 CET 2008
New submission from Jonathan Share:
Steps to reproduce
>>> from email.mime.multipart import MIMEMultipart
>>> foo = MIMEMultipart()
True should be returned from MIMEMultipart.is_multipart()
Looking at the implementation of is_multipart() in email.Message it
would appear that if self._payload was initialised to an empty list in
the constructor of MIMEMultipart when _subparts is None, this would be
a sufficient fix for this issue.
However, from an outsider looking into this code for the first time,
this doesn't look like the best architecture, shouldn't the issue of
whether a message has multiple parts, and logic specific to this be
handled through inheritance. With the current implementation the
superclass makes assumptions about how a subclass is implemented, this
just feels wrong. Have I missed something, is there a good reason for
things being as they are today?
Feel free to take the discussion to the python-dev list, I have just
subscribed, and I am interested in fixing this issue myself in the next
bug day if someone can answer my questions above.
components: Library (Lib)
title: email.mime.multipart.MIMEMultipart.is_multipart() returns false before items have been added.
versions: Python 2.5
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