[Python-Dev] Event loops, PyOS_InputHook, and Tkinter

[skip@pobox.com]

    Michiel> 1) Currently, there's only one PyOS_InputHook. So we're stuck
    Michiel>    if we find that some other extension module already set
    Michiel>    PyOS_InputHook. An easy solution would be to have an
    Michiel>    PyOS_AddInputHook/PyOS_RemoveInputHook API, and let Python
    Michiel>    maintain a list of input hooks to be called.

I think we've come more-or-less full circle to the point where I jumped onto
this spinning thread.  If there is only a single input hook function, you
probably need to write a slightly higher level module that manages the hook.
See sys.exitfunc and the atexit module for a simple example.

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