Merge pull request #1928 from kived/loader-url-fix-py3k

Loader: fix for py3k, allow override via URL fragment

kivy/loader.py

@@ -281,8 +281,14 @@ class LoaderBase(object):
         temporary file, and pass it to _load_local().'''
         if PY2:
             import urllib2 as urllib_request
+
+            def gettype(info):
+                return info.gettype()
         else:
             import urllib.request as urllib_request
+
+            def gettype(info):
+                return info.get_content_type()
         proto = filename.split(':', 1)[0]
         if proto == 'smb':
             try:
@@ -305,7 +311,11 @@ class LoaderBase(object):
                 # read from internet
                 fd = urllib_request.urlopen(filename)
 
-            ctype = fd.info().gettype()
+            if '#.' in filename:
+                # allow extension override from URL fragment
+                suffix = '.' + filename.split('#.')[-1]
+            else:
+                ctype = gettype(fd.info())
                 suffix = mimetypes.guess_extension(ctype)
                 if not suffix:
                     # strip query string and split on path