python-telegram-bot/telegram/ext/updatequeue.py
2016-03-14 14:50:12 +01:00

60 lines
2.1 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 the class UpdateQueue to override standard
Queue."""
# Adjust for differences in Python versions
try:
# loading Empty here so it can be imported by users of updatequeue
from queue import Queue, Empty # flake8: noqa
except ImportError:
from Queue import Queue, Empty # flake8: noqa
class UpdateQueue(Queue):
"""
This class overrides standard Queues. Allows you to de/queue context
data apart from the handled `update`
"""
def put(self, item, block=True, timeout=None, context=None):
"""
Put an item into the queue with context data if provided as a
tuple (item, context). Overrides standard Queue.put method.
Args:
update (any): handled by the dispatcher
context (any): extra data to use in handlers
"""
Queue.put(self, (item, context), block, timeout)
def get(self, block=True, timeout=None, context=False):
"""
Remove and return an item from the queue. A tuple of
(update, context) if requested. Overrides standard Queue.get
method.
Args:
context (boolean): set true to get (update, context)
"""
if not context:
return Queue.get(self, block, timeout)[0]
return Queue.get(self, block, timeout)