close matplotlib figures via escape button

maplotlib_close.py

import sys
import matplotlib.pyplot as plt


def connect_close(figure=None):
    def press_key(event):
        if event.key == 'escape':
            plt.close('all')
            sys.exit(0)
    if not figure:
        figure = plt.gcf()
    figure.canvas.mpl_connect('key_press_event', press_key)