Patch #1464708 from William McVey: fixed handling of nested comments in mail
addresses. E.g.
"Foo ((Foo Bar)) <foo@example.com>"
Fixes for both rfc822.py and email package. This patch needs to be back
ported to Python 2.3 for email 2.5.
* Use +=
* Replace loop logic with str.splitlines equivalent
* Don't use variable names that shadow tuple, list, and str
* Use dict.get instead of equivalent try/except
* Minor loop logic simplications
Specifically, time.strftime() no longer accepts a 0 in the yday position of a
time tuple, since that can crash some platform strftime() implementations.
parsedate_tz(): Change the return value to return 1 in the yday position.
Update tests in test_rfc822.py and test_email.py
instead of calling the getaddrlist() method, since the latter doesn't
work with multiple calls (it will return the empty list for the second
and subsequent calls).
Closes SF bug #555035. Include a unittest.
rfc822.AddressList incorrectly handles empty address.
"<>" is converted to None and should be "".
AddressList.__str__() fails on None.
I got an email with such an address and my program
failed processing it.
Example:
>>> import rfc822
>>> rfc822.AddressList("<>").addresslist
[('', None)]
>>> str(rfc822.AddressList("<>"))
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "/usr/lib/python2.1/rfc822.py", line 753, in __str__
return ", ".join(map(dump_address_pair,
self.addresslist))
TypeError: sequence item 0: expected string, None found
[His solution: in the internal routine AddrlistClass.getrouteaddr(),
initialize adlist to "".]
