On Fri, Oct 1, 2010 at 1:05 AM, Fernando Perez <fperez....@gmail.com> wrote:
> This manifested itself in some more complex MPL code that had multiple
> events not working when run inside ipython, but working OK outside of
> ipython. Fortunately, the small self-contained example demonstrates
> the problem even with ipython not being in the picture at all (the
> runs above were from the command line), so I think there is an issue
> in MPL proper.
>
> Sorry that I can't dig deeper into the code right now to look for a fix...
Somewhere in the 1.0 development cycle, Michael modified the callback
code to take weak references to methods. The purpose was to eliminate
some "leaks" that were occurring because callback connections to
objects were keeping them around and the proper disconnects were not
made (much simpler fix than tracking down every mpl_connect and trying
to see where do disconnect). What you're seeing in your script is that
since you're not assigning the Handler object to anything, it's being
garbage collected. It works for me if I change the second to last line
to:
h = Handler(f)
Ryan
--
Ryan May
Graduate Research Assistant
School of Meteorology
University of Oklahoma
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