New submission from Amir Emami <amirali1...@gmail.com>:
TkInter variable classes don't link to a widget (tested on Checkbutton and Scale) if matplotlib.pyplot.set_cmap() function is called before the tkinter.Tk() call which instantiates the root of a TkInter GUI. There is no problem if it is called after this, though. Simple example with checkbox attached below: ### Test program start ############## import matplotlib.pyplot as plt import tkinter as tk plt.set_cmap('viridis') # <--- when placed here, breaks the variable root = tk.Tk() #plt.set_cmap('viridis') # <--- when placed here, everything is fine # creation of variable class and widget var = tk.BooleanVar() tk.Checkbutton(root, variable=var).pack() # for printing result def on_click(): print(var.get()) tk.Button(root, text="Print State to Console", command=on_click).pack() root.mainloop() ---------- components: Tkinter files: tk and plt conflict.py messages: 353359 nosy: amiraliemami priority: normal severity: normal status: open title: tkinter variable classes don't link to widget if matplotlib's set_cmap() function is called before the tkinter GUI is instantiated type: behavior versions: Python 3.6 Added file: https://bugs.python.org/file48627/tk and plt conflict.py _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue38292> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com