[issue39333] argparse should offer an alternative to SystemExit in case a parse fails

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan <tir.karthi at gmail.com> added the comment:

Does overriding exit help here?

https://docs.python.org/3.8/library/argparse.html#argparse.ArgumentParser.exit

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nosy: +paul.j3, xtreak

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<https://bugs.python.org/issue39333>
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