Issue #18316: Update idlelib 2.7 except clauses to ease backports.
diff --git a/Lib/idlelib/run.py b/Lib/idlelib/run.py
index e375501..604c5cd 100644
--- a/Lib/idlelib/run.py
+++ b/Lib/idlelib/run.py
@@ -140,7 +140,7 @@
         try:
             server = MyRPCServer(address, MyHandler)
             break
-        except socket.error, err:
+        except socket.error as err:
             print>>sys.__stderr__,"IDLE Subprocess: socket error: "\
                                         + err.args[1] + ", retrying...."
     else: