def setlocale(category, value=None):
        """ setlocale(integer,string=None) -> string.
            Activates/queries locale processing.
        """
        if (None, '', 'C') not in value:
            raise Error('_locale emulation only supports "C" locale')
        return 'C'
dataset/ETHPy150Open amrdraz/kodr/app/brython/www/src/Lib/locale.py/setlocale/swapped operands of `not in`