compat: (py2) urlparse = urllib.parse (py3)

We were mistakenly importing the 'urlparse' function from the Python 2
'urlparse' module, as opposed to the module itself. Correct this.

Signed-off-by: Stephen Finucane <[email protected]>
Closes: encode#6261

rest_framework/compat.py

@@ -22,7 +22,7 @@
     import urllib.parse as urlparse   # noqa
 except ImportError:
     # Python 2.7
-    from urlparse import urlparse   # noqa
+    import urlparse   # noqa
 
 try:
     from django.urls import (  # noqa