import queue (like in py3) directly

future module takes care of adding the `queue` package to py2

telegram/ext/dispatcher.py

@@ -24,11 +24,7 @@ from functools import wraps
 from threading import Thread, BoundedSemaphore, Lock, Event, current_thread
 from time import sleep
 
-# Adjust for differences in Python versions
-try:
-    from queue import Empty  # flake8: noqa
-except ImportError:
-    from Queue import Empty  # flake8: noqa
+from queue import Empty
 
 from telegram import (TelegramError, NullHandler)
 from telegram.ext.handler import Handler

telegram/ext/jobqueue.py

@@ -22,11 +22,7 @@
 import logging
 import time
 from threading import Thread, Lock
-
-try:
-    from queue import PriorityQueue
-except ImportError:
-    from Queue import PriorityQueue
+from queue import PriorityQueue
 
 
 class JobQueue(object):

telegram/ext/updater.py

@@ -28,12 +28,7 @@ from threading import Thread, Lock, current_thread, Event
 from time import sleep
 import subprocess
 from signal import signal, SIGINT, SIGTERM, SIGABRT
-
-# Adjust for differences in Python versions
-try:
-    from queue import Queue  # flake8: noqa
-except ImportError:
-    from Queue import Queue  # flake8: noqa
+from queue import Queue
 
 from telegram import Bot, TelegramError, NullHandler
 from telegram.ext import dispatcher, Dispatcher, JobQueue