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Bug report
I am trying to plot graphs in a Tk canvas, and I find different behavior for mpl 3.3.0 and 3.2.2.
I am running the same code:
The code I am reusing it from here:https://github.com/SuperMechaDeathChrist/Widgets/blob/master/plt_figure_w_controls.py
it runs well for 3.2.2 and bellow but get the following error for 3.3.0:
Traceback (mostrecentcalllast):File"/home/yr2369/dev/mosydb/_personal/tests/plt_sg.py",line90,in<module>'fig_cv').TKCanvas,fig,window.FindElement('controls_cv').TKCanvas)File"/home/yr2369/dev/mosydb/_personal/tests/plt_sg.py",line17,indraw_figure_w_toolbartoolbar=Toolbar(figure_canvas_agg,canvas_toolbar)File"/home/yr2369/dev/mosydb/_personal/tests/plt_sg.py",line34,in__init__super(Toolbar,self).__init__(*args,**kwargs)File"/home/yr2369/anaconda3/envs/mosydb/lib/python3.7/site-packages/matplotlib/backends/_backend_tk.py",line525,in__init__NavigationToolbar2.__init__(self,canvas)File"/home/yr2369/anaconda3/envs/mosydb/lib/python3.7/site-packages/matplotlib/backend_bases.py",line2866,in__init__self.set_history_buttons()File"/home/yr2369/anaconda3/envs/mosydb/lib/python3.7/site-packages/matplotlib/backends/_backend_tk.py",line640,inset_history_buttonsself._buttons['Back']['state']=tk.DISABLEDKeyError:'Back'Processfinishedwithexitcode1
It looks like an easy fix, but maybe I am wrong - let me know what additional details you need from me.
I use python 3.7.8
ps - to test the code - pip install pysimplegui
Thank you
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