Tkinter/Matplotlib后端冲突导致无限的主循环 [英] Tkinter/Matplotlib backend conflict causes infinite mainloop

问题描述

考虑运行以下代码(请注意，这是一个极其简化的版本来演示该问题):

Consider running the following code (note it is an extremely simplified version to demonstrate the problem):

import matplotlib.pyplot as plot
from tkinter import * #Tkinter if your on python 2

def main():

    fig = plot.figure(figsize=(16.8, 8.0))

    root = Tk()
    w = Label(root, text="Close this and it will hang!")
    w.pack()
    root.mainloop()

    print('Code never reaches this point')

if __name__ == '__main__':
    main()

关闭第一个窗口会很好，但是关闭第二个窗口会导致代码挂起，因为 root.mainloop()会导致无限循环.这个问题是由调用fig = plot.figure(figsize=(16.8, 8.0))引起的.有人知道在进行该matplotlib.pyplot调用后如何成功获得root权限吗?

Closing the first window will work fine, but closing the second window causes the code to hang, as root.mainloop() causes an infinite loop. This problem is caused by calling fig = plot.figure(figsize=(16.8, 8.0)). Does anyone know how to get root to close succesfully after making that matplotlib.pyplot call?

推荐答案

import matplotlib
from tkinter import *

def main():

    fig = matplotlib.figure.Figure(figsize=(16.8, 8.0))

    root = Tk()
    w = Label(root, text="Close this and it will not hang!")
    w.pack()
    root.mainloop()

    print('Code *does* reach this point')

if __name__ == '__main__':
    main()

将matplotlib图形嵌入到 Tkinter 窗口中时，请使用 matplotlib.figure.Figure ，而不要使用 plt.Figure .

When embedding a matplotlib figure inside a Tkinter window, use matplotlib.figure.Figure rather than plt.Figure.

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