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non7top/argparse_dict_argument.py

Forked from vadimkantorov/argparse_dict_argument.py
Created December 29, 2023 22:04
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A one-line example enabling Python's argparse to accept dictionary arguments
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argparse_dict_argument.py
# Example:
# $ python argparse_dict_argument.py --env a=b --env aa=bb
# Namespace(env={'a': 'b', 'aa': 'bb'})
import argparse
parser = argparse.ArgumentParser()
parser.add_argument('--env', action = type('', (argparse.Action, ), dict(__call__ = lambda a, p, n, v, o: getattr(n, a.dest).update(dict([v.split('=')])))), default = {}) # anonymously subclassing argparse.Action
print(parser.parse_args())
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