[issue44748] argparse: a bool indicating if arg was encountered

[🖤Black Joker🖤]

🖤Black Joker🖤 <akki.dw007 at gmail.com> added the comment:

I would like to use argparse to parse boolean command-line arguments written as "--foo True" or "--foo False". For example:

my_program --my_boolean_flag False


However, the following test code does not do what I would like:

import argparse
parser = argparse.ArgumentParser(description="My parser")
parser.add_argument("--my_bool", type=bool)
cmd_line = ["--my_bool", "False"]
parsed_args = parser.parse(cmd_line)

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components: +Tests -Library (Lib)
nosy: +joker
versions: +Python 3.9 -Python 3.11

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue44748>
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