When using an event in Tkinter, how can you pass in other variables to the event function?

Question

In this example, that I used from http://effbot.org/tkinterbook/tkinter-events-and-bindings.htm, how could you pass in more variables to the function callback. Say you wanted to pass in a dict that you created and use that dict, how could you do that without calling global variables.

from Tkinter import *

root = Tk()

def callback(event):
    print "clicked at", event.x, event.y

frame = Frame(root, width=100, height=100)
frame.bind("<Button-1>", callback)
frame.pack()

root.mainloop()

Newb here, might have some awkward phrasing, feel free to ask for clarification.

score 0 · Accepted Answer · answered Jul 25 '14 at 08:05

0

Here are two possible ways.

You can put your 'callback' function in a class, and use self to pass in self-defined variables
You can set all your variables in another module file and import it to this file. Since variables from another file have been imported to this namespace, you can use them without passing into 'callback' function, just the same as global variables.

answered Jul 25 '14 at 08:05

Stephen Lin

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Thanks! Worked perfectly. – Dta Jul 25 '14 at 09:46
there are more than two possible ways. For example, you can also use `lambda`, and `functools.partial`. – Bryan Oakley Jul 25 '14 at 11:27

When using an event in Tkinter, how can you pass in other variables to the event function?

1 Answers1