def _check_plural_arg_is_num(plural_arg):
 if _STRING_RE.match(plural_arg):
  return False
 fn_match = _FUNCTION_RE.match(plural_arg)
 if (fn_match and (fn_match.group(1) in _functions)):
  return False
 for var in _string_vars:
  if (var in plural_arg.upper()):
   return False
 for var in _num_vars:
  if (var in plural_arg.upper()):
   return True
 return None

def _check_plural_arg_is_num ( plural_arg ) : if _STRING_RE . match ( plural_arg ) : return False fn_match = _FUNCTION_RE . match ( plural_arg ) if ( fn_match and ( fn_match . group ( 1 ) in _functions ) ) : return False for var in _string_vars : if ( var in plural_arg . upper ( ) ) : return False for var in _num_vars : if ( var in plural_arg . upper ( ) ) : return True return None
check to see if a string matches the known ways in which a plural argument can be a number .