Tkinter button automatically runs command even if not pressed

Question

I wanted to create a buttons using tkinter with line of code below

from tkinter import *
import webbrowser
import numpy as np
course = []
course_link = []
fh = open(r'D:\E-Learning\IBM Data Science.txt')
i=1
for line in fh:
   f=line.rstrip()
   if not line.startswith("https:"):
    
    course.append( "Course " + str(i) + ": " + str(f))
    i+=1
  else:
    course_link.append(str(f))
window = Tk()
for i in range(0,2):
  course[i] = Button(window,text=str(course[i]))
  course[i].config(command=webbrowser.open(str(course_link[i])))
  course[i].pack()

window.mainloop()

Thanks guys Im new to this module so it's amazing if you can help me out! Edit: Pressing the buttons won't do the command too.

score 1 · Accepted Answer · edited Jan 11 '22 at 06:19

1

Its because you are calling it instead of binding it

for i in range(0,2):
    def onClick(i=i):# not good practice but demonstrates
        print("You clicked I",i)
    course[i] = Button(window,text=str(course[i]))
    course[i].config(command=onClick) # notice i dont call onClick

edited Jan 11 '22 at 06:19

Delrius Euphoria

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answered Jan 11 '22 at 05:15

Joran Beasley

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It would still print the same last `i` for all the buttons, though it fixes the command being called early – Delrius Euphoria Jan 11 '22 at 05:26
1

there fixed it. – Joran Beasley Jan 11 '22 at 06:16

Tkinter button automatically runs command even if not pressed

1 Answers1