Lines Matching refs:OPTIONAL

101 OPTIONAL = '?'  variable
581         elif action.nargs == OPTIONAL:
666                 defaulting_nargs = [OPTIONAL, ZERO_OR_MORE]
826         if const is not None and nargs != OPTIONAL:
827             raise ValueError('nargs must be %r to supply const' % OPTIONAL)
918         if const is not None and nargs != OPTIONAL:
919             raise ValueError('nargs must be %r to supply const' % OPTIONAL)
1396         if kwargs.get('nargs') not in [OPTIONAL, ZERO_OR_MORE]:
2033                 OPTIONAL: _('expected at most one argument'),
2170         elif nargs == OPTIONAL:
2213         if not arg_strings and action.nargs == OPTIONAL:
2233         elif len(arg_strings) == 1 and action.nargs in [None, OPTIONAL]: