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[3.10] bpo-45239: Fix parsedate_tz when time has more than 2 dots in it (GH-28452) (GH-28930)

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Co-authored-by: Łukasz Langa <lukasz@langa.pl>
(cherry picked from commit b9e687618d)

Co-authored-by: Ben Hoyt <benhoyt@gmail.com>
This commit is contained in:
Łukasz Langa 2021-10-13 19:12:22 +02:00 • committed by GitHub
parent 151234f5da
commit f8473f6f76
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2
Lib/email/_parseaddr.py
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@ -128,6 +128,8 @@ def _parsedate_tz(data):
tss = 0
elif len(tm) == 3:
[thh, tmm, tss] = tm
else:
return None
else:
return None
try:

1
Lib/test/test_email/test_email.py
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@ -3009,6 +3009,7 @@ class TestMiscellaneous(TestEmailBase):
self.assertIsNone(utils.parsedate_tz('0'))
self.assertIsNone(utils.parsedate('A Complete Waste of Time'))
self.assertIsNone(utils.parsedate_tz('A Complete Waste of Time'))
self.assertIsNone(utils.parsedate_tz('Wed, 3 Apr 2002 12.34.56.78+0800'))
# Not a part of the spec but, but this has historically worked:
self.assertIsNone(utils.parsedate(None))
self.assertIsNone(utils.parsedate_tz(None))

3
Misc/NEWS.d/next/Library/2021-10-13-17-52-48.bpo-45239.7li1_0.rst Normal file
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@ -0,0 +1,3 @@
Fixed :func:`email.utils.parsedate_tz` crashing with
:exc:`UnboundLocalError` on certain invalid input instead of returning
``None``. Patch by Ben Hoyt.