New submission from Anton Khirnov <[email protected]>:
On parsing an email where the display name in an address ends on a dot
immediately followed by angle-addr, accessing the resulting mailbox
display_name throws
/usr/lib/python3.9/email/_header_value_parser.py in value(self)
589 if self[0].token_type=='cfws' or
self[0][0].token_type=='cfws':
590 pre = ' '
--> 591 if self[-1].token_type=='cfws' or
self[-1][-1].token_type=='cfws':
592 post = ' '
593 return pre+quote_string(self.display_name)+post
AttributeError: 'str' object has no attribute 'token_type'
The problem is that self[-1] is the terminal DOT.
An example of the problematic header is:
From: foobar.<baz@spam>
----------
components: email
messages: 388738
nosy: barry, elenril, r.david.murray
priority: normal
severity: normal
status: open
title: email._header_value_parse throws AttributeError on display name ending
with dot
type: behavior
versions: Python 3.10, Python 3.6, Python 3.7, Python 3.8, Python 3.9
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<https://bugs.python.org/issue43501>
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