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  1. import argparse as ap
  2.  
  3. p = ap.ArgumentParser()
  4. p.add_argument('file', nargs='*',
  5.                 metavar='FILE',
  6.                 default='-',
  7.                 type=ap.FileType('r'),
  8.                 help='Input files. - is stdin. Default: %(default)s')
  9.  
  10. print(p.parse_args([]))
  11. print(p.parse_args(['-']))
Success #stdin #stdout 0.02s 28808KB
comments (?)
stdin
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Standard input is empty
stdout
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Namespace(file='-')
Namespace(file=[<_io.TextIOWrapper name='<stdin>' mode='r' encoding='UTF-8'>])
https://ideone.com/mXud9K
language:
Python 3 (python  3.9.5)
created:
7 years ago
visibility:
public

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