Matthew Barnett <[email protected]> added the comment:
Look at the spans of the groups:
>>> import re
>>> re.search(r'^(?:(\d*)(\D*))*$', "42AZ").span(1)
(4, 4)
>>> re.search(r'^(?:(\d*)(\D*))*$', "42AZ").span(2)
(4, 4)
They're telling you that the groups are matching twice (because of the outer
*). The first time, they match ('42', 'AZ'); the second time, they match ('',
'') at the end of the string.
Not a bug.
----------
resolution: -> not a bug
stage: -> resolved
status: open -> closed
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Python tracker <[email protected]>
<https://bugs.python.org/issue35653>
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