I manage to use WXAgg backend by replacing ‘TkAgg’ with ‘WXAgg’ inside matplotlibrc file.
I found that using this wx backend the figure size is smaller than using TkAgg backend (the default size).
I try to make small experiment by resizing the figure.figsize inside matplotlibrc file and found that using wx backend the figure size can not be resized. Using TkAgg works fine.
Is this a bug ?