Message 149228 - Python tracker

Attached is a patch to fix the bug.

When selecting "Open" from the File Menu, "ishanderrunning" is empty. Unbind/Bind requests are handled synchronously.

When pressing "Ctrl+O", "ishandlerrunning" is no longer empty, and the actual bind/unbind events get appended to "doafterhandle". 

The original code was running these bind/unbind events in REVERSE order by using "pop", so unbind requests were being made (and causing the error) before the proper bind request.