#18380: pass regex flags to the right argument. Patch by Valentina Mukhamedzhanova.
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@ -319,4 +319,4 @@ def header_decode(s):
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the high level email.header class for that functionality.
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"""
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s = s.replace('_', ' ')
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return re.sub(r'=[a-fA-F0-9]{2}', _unquote_match, s, re.ASCII)
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return re.sub(r'=[a-fA-F0-9]{2}', _unquote_match, s, flags=re.ASCII)
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@ -4048,6 +4048,10 @@ class TestQuopri(unittest.TestCase):
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def test_header_decode_non_ascii(self):
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self._test_header_decode('hello=C7there', 'hello\xc7there')
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def test_header_decode_re_bug_18380(self):
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# Issue 18380: Call re.sub with a positional argument for flags in the wrong position
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self.assertEqual(quoprimime.header_decode('=30' * 257), '0' * 257)
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def _test_decode(self, encoded, expected_decoded, eol=None):
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if eol is None:
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decoded = quoprimime.decode(encoded)
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