mirror of
https://github.com/python-telegram-bot/python-telegram-bot.git
synced 2024-11-29 03:32:49 +01:00
38 lines
1.3 KiB
Python
38 lines
1.3 KiB
Python
#!/usr/bin/env python
|
|
#
|
|
# A library that provides a Python interface to the Telegram Bot API
|
|
# Copyright (C) 2015-2016
|
|
# Leandro Toledo de Souza <devs@python-telegram-bot.org>
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Lesser Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Lesser Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser Public License
|
|
# along with this program. If not, see [http://www.gnu.org/licenses/].
|
|
|
|
"""This module contains functions to validate function arguments"""
|
|
|
|
try:
|
|
type(basestring)
|
|
except NameError:
|
|
basestring = str
|
|
|
|
|
|
def validate_string(arg, name):
|
|
"""
|
|
Validate a string argument. Raises a ValueError if `arg` is neither an
|
|
instance of basestring (Python 2) or str (Python 3) nor None.
|
|
|
|
Args:
|
|
arg (basestring): The value to be tested
|
|
name (str): The name of the argument, for the error message
|
|
"""
|
|
if not isinstance(arg, basestring) and arg is not None:
|
|
raise ValueError(name + ' is not a string')
|