Lines Matching refs:OPTIONAL

94 OPTIONAL = '?'  variable
586         elif action.nargs == OPTIONAL:
683                 defaulting_nargs = [OPTIONAL, ZERO_OR_MORE]
859         if const is not None and nargs != OPTIONAL:
860             raise ValueError('nargs must be %r to supply const' % OPTIONAL)
951         if const is not None and nargs != OPTIONAL:
952             raise ValueError('nargs must be %r to supply const' % OPTIONAL)
1451         if kwargs.get('nargs') not in [OPTIONAL, ZERO_OR_MORE]:
2074                 OPTIONAL: _('expected at most one argument'),
2215         elif nargs == OPTIONAL:
2347         if not arg_strings and action.nargs == OPTIONAL:
2367         elif len(arg_strings) == 1 and action.nargs in [None, OPTIONAL]: