Within matplotlib.cbook.CallbackRegistry both the connect() and process()
methods check for dead references when called. If a reference is dead it
deletes it from the callback list.
I have found a situation where this presents a problem.
First, a "button_press_event" calls the process method()
Here is a bit more detail and a simple example.
The example below places red squares in an axes. When the user clicks on an
existing red square - another square is created and added. When the user hits
any key a square is deleted from the axes. The error is triggered by clicking
on the red sq
Daniel -
Yes that works. In my case - I hate to edit any existing third party
code bases - or it bites me later when I upgrade.
For now - I simply do my own dead reference clean up externally when
doing the deletes. Really, that would be the same as just doing a
disconnect - but for othe
