def set_default ( self , key , value ) : k = self . _real_key ( key . lower ( ) ) self . _defaults [ k ] = value
python setdefault short circuit
Set the default value for this key . Default only used when no value is provided by the user via arg config or env .
def set_default(self, key, value):
        """Set the default value for this key.
        Default only used when no value is provided by the user via
        arg, config or env.
        """
        k = self._real_key(key.lower())
        self._defaults[k] = value