python tkinter button events

Question

I have written the following code to list all directories/files in a given path and then write them to a button. How can I use tkinter's events handler so that whenever any button is double clicked within the widget window it calls a new function.

def display_toplevel(globpath):
    global row, column
    dir=globpath
    dirs = os.listdir(dir)
    for file in dirs:
        Button(master, width=8, height=4, text=file).grid(row=row, column=column, padx=10, sticky=W)
        column = column + 2
        if column == 10:
            row = row + 3
            column = 0
            column = column + 2
            break

Are you trying to reinvent tkFileDialog? Quote: "If you want to open or save a file or to choose a directory using a filedialog you dont need to implement it on your own. The module tkFileDialog is just for you." — Junuxx
– Junuxx, Commented Feb 28, 2013 at 10:43

Rushy Panchal · Accepted Answer · 2013-02-27 23:18:45Z

3

This works for single clicks; in the code where you create the button, add the command = # function parameter:

Button(master, width=8, height=4, text=file,command=my_funct).grid(row=row, column=column, padx=10, sticky=W)
# note how the function does not have parentheses (after command=) 

def my_funct():
    # code

Reference: Tkinter Button Widget and Parameters

answered Feb 27, 2013 at 23:18

Rushy Panchal

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2 Comments

bigl Over a year ago

thank you, i was looking at the events binding and overlooked something so trivial

martineau Over a year ago

@bigl: You'll need to define the function before binding it, of course.

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