--- httpdownloader.py.org	2014-05-08 23:36:46.000000000 +0200
+++ httpdownloader.py	2014-05-09 00:05:43.000000000 +0200
@@ -191,8 +191,18 @@
         if not headers:
             headers = {}
         headers["accept-encoding"] = "deflate, gzip, x-gzip"
+	
+# In twisted 13.1.0 the _parse() function was replaced by the _URI class 
+    if hasattr(client, '_parse'):
+    	scheme, host, port, path = client._parse(url)
+    else:
+	from twisted.web.client import _URI
+	uri = _URI.fromBytes(url)
+	scheme = uri.scheme
+	host = uri.host
+	port = uri.port
+	path = uri.path
 
-    scheme, host, port, path = client._parse(url)
     factory = HTTPDownloader(url, filename, callback, headers, force_filename, allow_compression)
     if scheme == "https":
         from twisted.internet import ssl