I have a little update on the issue: I tried it with different versions of python and matplotlib and it is still present in python 2.7.6 + matplotlib 1.4.2
but it works as expected in python 3.4.0 + matplotlib 1.4.2 Should this be reported as a bug in matplotlib 1.4.2 on python 2.7.6? BTW, I noticed that my minimal text from previous mail didn't get through to the mailing list, so I am attaching it again (modified for python 2.7) without formatting: from __future__ import print_function import sys if sys.version_info < (3, 0): import Tkinter as tk else: import tkinter as tk from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg import matplotlib.figure as mplfig class Test: def on_press(self, event): print("clicked2") def connect(self, canvas): self.cidpress = canvas.mpl_connect( 'button_press_event', self.on_press) self.cidpress = canvas.mpl_connect( 'button_press_event', lambda event: print("clicked1")) class App(object): def on_press(self, event): print("clicked0") def __init__(self, master): self.fig = mplfig.Figure() self.canvas = FigureCanvasTkAgg(self.fig, master=master) dl = Test() dl.connect(self.canvas) self.cidpress = self.canvas.mpl_connect( 'button_press_event', self.on_press) self.canvas.get_tk_widget().pack() self.canvas.draw() if __name__ == "__main__": root = tk.Tk() app = App(root) tk.mainloop() this should print clicked2 clicked1 clicked0 after each click on the canvas. But in python 2.7.6 it prints only clicked1 clicked0 -- View this message in context: http://matplotlib.1069221.n5.nabble.com/Problem-with-event-handling-in-matplotlib-in-tkinter-tp44302p44307.html Sent from the matplotlib - users mailing list archive at Nabble.com. ------------------------------------------------------------------------------ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users