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gh-126845: Some edge cases in email.utils.parsedate_to_datetime seem to differ from RFC2822 spec#134438

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2 changes: 1 addition & 1 deletionLib/email/_parseaddr.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -149,7 +149,7 @@ def _parsedate_tz(data):
# calls for a two-digit yy, but RFC 2822 (which obsoletes RFC 822)
# mandates a 4-digit yy. For more information, see the documentation for
# the time module.
if yy < 100:
iflen(str(yy)) >= 2 andyy < 100:
# The year is between 1969 and 1999 (inclusive).
if yy > 68:
yy += 1900
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2 changes: 1 addition & 1 deletionLib/test/test_email/test_email.py
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Expand Up@@ -3227,7 +3227,7 @@ def test_parsedate_y2k(self):

"""
self.assertEqual(utils.parsedate_tz('25 Feb 03 13:47:26 -0800'),
utils.parsedate_tz('25 Feb2003 13:47:26 -0800'))
utils.parsedate_tz('25 Feb3 13:47:26 -0800'))
self.assertEqual(utils.parsedate_tz('25 Feb 71 13:47:26 -0800'),
utils.parsedate_tz('25 Feb 1971 13:47:26 -0800'))

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17 changes: 17 additions & 0 deletionsLib/test/test_email/test_parsedate_to_datetime.py
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@@ -0,0 +1,17 @@
# Test to see if parsedate_to_datetime returns the correct year for different digit numbers, adhering to the RFC2822 spec

import unittest
from email.utils import parsedate_to_datetime

class ParsedateToDatetimeTest(unittest.TestCase):
def test(self):
expectations = {
"Sat, 15 Aug 0001 23:12:09 +0500": "0001",
"Thu, 1 Sep 1 23:12:09 +0800": "0001",
"Thu, 7 Oct 123 23:12:09 +0500": "0123",
}
for input_string, output_string in expectations.items():
self.assertEqual(str(parsedate_to_datetime(input_string))[:4], output_string)

if __name__ == '__main__':
unittest.main()
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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,2 @@
Fixed _parsedate_tz to not evaluate 1 digit years as as 4-digit years, adhering to RFC 2855 4.3
Contributed by Gustaf Gyllensporre.
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