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"""
Example of option groups, "flat style".
"""
import click
import cloup
from cloup import OptionGroup, option
from cloup.constraints import If, RequireAtLeast, mutually_exclusive
_input = OptionGroup(
'Input options',
help='This is a very useful description of the group',
constraint=mutually_exclusive,
)
_output = OptionGroup(
'Output options',
constraint=If('three', then=RequireAtLeast(1)),
)
@cloup.command('cloup_flat', align_option_groups=True, no_args_is_help=True)
# Input options
@_input.option('-o', '--one', help='1st input option')
@_input.option('--two', help='2nd input option')
@_input.option('--three', help='3rd input option')
# Output options
@_output.option('--four', help='1st output option')
@_output.option('--five', help='2nd output option')
@_output.option('--six', help='3rd output option')
# Other options
@option('--seven', help='first uncategorized option',
type=click.Choice('yes no ask'.split()))
@option('--height', help='second uncategorized option')
def main(**kwargs):
"""A CLI that does nothing."""
print(kwargs)
if __name__ == '__main__':
main()
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