Fix Issue8194 - Fix incompatible API change in the parse_respones for xmlrpclib.

Lib/xmlrpc/client.py

@@ -1297,8 +1297,12 @@ class Transport:
 
     def parse_response(self, response):
         # read response data from httpresponse, and parse it
-        if response.getheader("Content-Encoding", "") == "gzip":
-            stream = GzipDecodedResponse(response)
+        # Check for new http response object, otherwise it is a file object.
+        if hasattr(response, 'getheader'):
+            if response.getheader("Content-Encoding", "") == "gzip":
+                stream = GzipDecodedResponse(response)
+            else:
+                stream = response
         else:
             stream = response