def _verify_padding(padding):
 if (padding not in ALLOWED_PADDINGS):
  raise ValueError("Padding must be member of '{}', not {}".format(ALLOWED_PADDINGS, padding))
 return padding

def _verify_padding ( padding ) : if ( padding not in ALLOWED_PADDINGS ) : raise ValueError ( "Padding must be member of '{}', not {}" . format ( ALLOWED_PADDINGS , padding ) ) return padding
verifies that the provided padding is supported .