fixup! taskdistribution: really fix lock to avoid errors with concurrent RPC calls

CHANGES.erp5.util.txt

 Changes
 =======
 
+0.4.22 (2013-01-08)
+-------------------
+
+ * erp5.util.taskdistribution:
+
+  - fix regression when used on Python < 2.7
+
 0.4.21 (2013-01-07)
 -------------------
 

erp5/util/taskdistribution/__init__.py

@@ -358,8 +358,10 @@ class ServerProxy(xmlrpclib.ServerProxy):
         transport = self.__transport
         def make_connection(*args, **kw):
             conn = transport.__class__.make_connection(transport, *args, **kw)
-            assert hasattr(conn, 'timeout'), conn
-            conn.timeout = 120
+            # BBB: On Python < 2.7, HTTP connection is wrapped
+            c = getattr(conn, '_conn', conn)
+            assert hasattr(c, 'timeout')
+            c.timeout = 120
             return conn
         transport.make_connection = make_connection
         self.__rpc_lock = threading.Lock()

setup.py

@@ -2,7 +2,7 @@ from setuptools import setup, find_packages
 import glob
 import os
 
-version = '0.4.21'
+version = '0.4.22'
 name = 'erp5.util'
 long_description = open("README.erp5.util.txt").read() + "\n"