compat file for handling py2/py3 urllib stuff

pytube/api.py

@@ -5,13 +5,7 @@ import json
 import logging
 import re
 import warnings
-try:
-    from urllib2 import urlopen
-    from urlparse import urlparse, parse_qs, unquote
-except ImportError:
-    from urllib.parse import urlparse, parse_qs, unquote
-    from urllib.request import urlopen
-
+from .compat import urlopen, urlparse, parse_qs, unquote
 from .exceptions import MultipleObjectsReturned, PytubeError, CipherError, \
     DoesNotExist, AgeRestricted
 from .jsinterp import JSInterpreter

pytube/compat.py

@@ -0,0 +1,9 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# flake8: noqa
+try:
+    from urllib2 import urlopen
+    from urlparse import urlparse, parse_qs, unquote
+except ImportError:
+    from urllib.parse import urlparse, parse_qs, unquote
+    from urllib.request import urlopen