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gh-117941: Fix argparse issue-Changed call method of BooleanOptionalAction class in argparse.py #117941 #118103

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5 changes: 4 additions & 1 deletion Lib/argparse.py
Original file line number Diff line number Diff line change
Expand Up @@ -932,7 +932,10 @@ def __init__(self,

def __call__(self, parser, namespace, values, option_string=None):
if option_string in self.option_strings:
setattr(namespace, self.dest, not option_string.startswith('--no-'))
if not self.dest.startswith('no'):
setattr(namespace, self.dest, not option_string.startswith('--no-'))
else:
setattr(namespace, self.dest, option_string.count('no') == self.dest.count('no'))

def format_usage(self):
return ' | '.join(self.option_strings)
Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
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Please see the devguide on how to write a NEWS entry.

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