How can I print to console after button press?(Python 3.5) -

this question has answer here:

• why button parameter “command” executed when declared? 4 answers

when run code "15" printed console. how can print after press button?

from tkinter import * def mult(n):     print (n*3)  top = tk() b1 = button(top, text = "enter number", command = mult(5)) b1.pack() top.mainloop() 

function arguments evaluated before calling function.

make callable:

from tkinter import * def mult(n):     print (n*3)  top = tk() b1 = button(top, text = "enter number", command = lambda: mult(5)) b1.pack() top.mainloop()