Hi,
I have a library which uses matplotlib to produce some plots. This library is
called by a thread. However, python crashes with this error when it tries to
plot something:
Tk_MacOSXSetupTkNotifier: first [load] of TkAqua has to occur in the main
thread!
If I do as it says and call "window = Tkinter.Tk()" in the main thread before
spawning the thread which calls the plotting routines, it works well until the
program shuts down. When shutting down, I get a series of these messages (8 of
them, to be precise):
Exception RuntimeError: RuntimeError('main thread is not in main loop',) in
<bound method PhotoImage.__del__ of <Tkinter.PhotoImage instance at 0x90fe260>>
ignored
Googling reveals to me that this is a problem with Tk: it doesn't like
threading. I tried to force matplotlib to use a different backend with this
command:
matplotlib.rcParams['backend'] = something_else
but it still crashes with the first error.
Has anyone encountered this problem before? How did you overcome it?
Cheers,
Oliver
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