Convert the msg to a string before putting in the queue (otherwise the

exception object is serialized in order to be sent to the master process)

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk/utils@46024 20353a03-c40f-0410-a6d1-a30d3c3de9de

erp5/util/benchmark/process.py

@@ -145,7 +145,7 @@ class BenchmarkProcess(multiprocessing.Process):
       self._logger.error(e)
 
     except BaseException, e:
-      exit_msg = e
+      exit_msg = str(e)
       exit_status = 1
 
     self._exit_msg_queue.put(exit_msg)