[matplotlib-devel] Is Tkinter-matplotlib using Threads?

[Friedrich R. <fri...@gm...>]

There were several question on the user's list in the recent past
reporting hangs and similar when using TkAgg backend & interactive
mode.

It is known that Tkinter doesn't play well with threading, as long as
one isn't done very carefully.

It could be that matplotlib has implemented it in a way not safe for
Tkinter.  This applies if there are Tkinter methods called from
threads other than those which imported Tkinter.

It results in unpredicatable behaviour with exactly the features
reported: Hang-ups, blankening, partial hangup of part of the threads.

Is a rewrite of the Tk interactive code necessary?

Friedrich