New submission from Pablo Galindo Salgado <pablog...@gmail.com>:
Currently, empty sequences in gather rules make the conditional for
gather rules fail as empty sequences evaluate as "False". We need to
explicitly check for "None" (the failure condition) to avoid false
negatives.

----------
messages: 376129
nosy: pablogsal
priority: normal
severity: normal
status: open
title: The python PEG generator incorrectly handles empty sequences in gather 
rules
versions: Python 3.10, Python 3.9

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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue41667>
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