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  1. import argparse
  2.  
  3.  
  4. def command_d(value):
  5.     print("d", value)
  6.  
  7. def command_a(value_a, value_b):
  8.     print("a", value_a, value_b)
  9.  
  10. def command_r(value_a, value_b):
  11.     print("r", value_a, value_b)
  12.  
  13.  
  14. def make_custom_action(command):
  15.     class CustomAction(argparse.Action):
  16.         def __call__(self, parser, namespace, values, option_string=None):
  17.             return command(*values)
  18.     return CustomAction
  19.  
  20.  
  21.  
  22. def init_parser():
  23.     """Initiate argparse and return an `argparse.ArgumentParser`
  24.     Returns: An `ArgumentParser`
  25.     """
  26.     parser = argparse.ArgumentParser()
  27.  
  28.     parser.add_argument(
  29.       '--remove-duplicates', '-d',
  30.       nargs=1,
  31.       action=make_custom_action(command_d)
  32.     )
  33.  
  34.     parser.add_argument(
  35.       '--use-absolute-paths', '-A',
  36.       nargs=2,
  37.       action=make_custom_action(command_a)
  38.     )
  39.  
  40.     parser.add_argument(
  41.       '--use-relative-paths', '-R',
  42.       nargs=2,
  43.       action=make_custom_action(command_r)
  44.     )
  45.  
  46.     return parser
  47.  
  48. init_parser().parse_args(['-A', 'foo', 'bar'])
  49. init_parser().parse_args(['-R', 'foo', 'bar'])
  50. init_parser().parse_args(['-d', 'baz'])
  51.  
Success #stdin #stdout 0.03s 28896KB
comments (?)
stdin 
Standard input is empty
stdout 
a foo bar
r foo bar
d baz
https://ideone.com/vi80c0
language:
Python 3 (python  3.12)
created:
8 years ago
visibility:
secret

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