Is it a bug (or a feature)?

[Roman Suzi]

In Python2.3.4:
.... print i
....
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "/usr/lib/python2.3/email/Message.py",
line
304, in __getitem__
File "/usr/lib/python2.3/email/Message.py",
line
370, in get
AttributeError: 'int' object has no attribute 'lower'

However items() does work:
.... print i
....
('Date', '24 Aug 2004 16:06:01 +0400')
('From', 'Mail System Internal Data <[email protected]>')
('Subject', "DON'T DELETE THIS MESSAGE -- FOLDER INTERNAL DATA")
('Message-ID', '<[email protected]>')
('X-IMAP', '1095527634 0000000005')
('Status', 'RO')

I can probably guess why this happens ('cause multiple fields with the
same names are possible), but .items() is broken by this... It needn't
be!


Sincerely yours, Roman A.Suzi

 

[Paul McGuire]

In Python2.3.4:

... print i
...
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "/usr/lib/python2.3/email/Message.py",
line
304, in __getitem__
File "/usr/lib/python2.3/email/Message.py",
line
370, in get
AttributeError: 'int' object has no attribute 'lower'

However items() does work:

... print i
...
('Date', '24 Aug 2004 16:06:01 +0400')
('From', 'Mail System Internal Data <[email protected]>')
('Subject', "DON'T DELETE THIS MESSAGE -- FOLDER INTERNAL DATA")
('Message-ID', '<[email protected]>')
('X-IMAP', '1095527634 0000000005')
('Status', 'RO')

I can probably guess why this happens ('cause multiple fields with the
same names are possible), but .items() is broken by this... It needn't
be!


Sincerely yours, Roman A.Suzi

Looks like a bug to me. Message.__getitem__() makes a call to
Message.get(), assuming that the argument passed in is a key name (such as
'Date', 'From', etc. from your example). __getitem__ should first check to
see if the input argument (named 'name', further indication that this method
was written to expect only strings) is an integer or slice, and if so, just
return self._headers[name].

-- Paul

 

[Paul McGuire]

Looking further at Message.py, __delitem__ has this same problem. When
fixing this, should probably also add an __iter__ method, that would return
iter(self._headers).

-- Paul

 

[Anthony Baxter]

This looks like a bug. Please open a bug on SF, with the example code.

 

[Anthony Baxter]

This looks like a bug. Please open a bug on SF, with the example code.

 

[Paul McGuire]

This looks like a bug. Please open a bug on SF, with the example code.

Do you mean me or the OP?

-- Paul

 

[Paul McGuire]

This looks like a bug. Please open a bug on SF, with the example code.

I just opened this bug, it is number 1017329.

-- Paul

 

[Michael Foord]

In Python2.3.4:

... print i
...
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "/usr/lib/python2.3/email/Message.py",
line
304, in __getitem__
File "/usr/lib/python2.3/email/Message.py",
line
370, in get
AttributeError: 'int' object has no attribute 'lower'

However items() does work:

... print i
...
('Date', '24 Aug 2004 16:06:01 +0400')
('From', 'Mail System Internal Data <[email protected]>')
('Subject', "DON'T DELETE THIS MESSAGE -- FOLDER INTERNAL DATA")
('Message-ID', '<[email protected]>')
('X-IMAP', '1095527634 0000000005')
('Status', 'RO')

I can probably guess why this happens ('cause multiple fields with the
same names are possible), but .items() is broken by this... It needn't
be!


Sincerely yours, Roman A.Suzi

It's very similar to a 'feature' in the urllib2 module. (Python 2.3.4)
Traceback (most recent call last):
File "<pyshell#11>", line 1, in -toplevel-
for entry in i: print entry
File "D:\PYTHON23\lib\rfc822.py", line 390, in __getitem__
return self.dict[name.lower()]
AttributeError: 'int' object has no attribute 'lower'


Regards,


Fuzzy

http://www.voidspace.org.uk/atlantibots/pythonutils.html