How do i pass an argument B only if argument A is not None
Example:
parser = argparse.ArgumentParser()
parser.add_argument("A")
parser.add_argument("B") #if A exist
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J. Igor
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1Does this answer your question? [Argparse: Required argument 'y' if 'x' is present](https://stackoverflow.com/questions/19414060/argparse-required-argument-y-if-x-is-present) – Or Y Sep 10 '20 at 05:11
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Usually do this after parsing. – hpaulj Sep 10 '20 at 06:11