tkinter bind function with arguments

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Thomas
15 Aug 2020
1import tkinter as tk
2
3class SampleApp(tk.Tk):
4    def __init__(self, *args, **kwargs):
5        tk.Tk.__init__(self, *args, **kwargs)
6        self.frame = tk.Frame(self)
7        self.frame.pack()
8        self.button = tk.Button(self.frame, text="click me",
9                             command=lambda a=1, b=2, c=3: 
10                                self.rand_func(a, b, c))
11        self.button.pack()
12        self.frame.bind("<Return>", 
13                        lambda event, a=10, b=20, c=30: 
14                            self.rand_func(a, b, c))
15        # make sure the frame has focus so the binding will work
16        self.frame.focus_set()
17
18    def rand_func(self, a, b, c):
19        print "self:", self, "a:", a, "b:", b, "c:", c
20        print (a+b+c)
21
22app = SampleApp()
23app.mainloop()
24
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