| title | description | author | tags |
|---|---|---|---|
Allow Alphanumeric |
A validation function to allow alphanumeric characters. |
Legopitstop |
validation,alphanumeric |
from tkinter import Tk, Entry
def allow_alphanumeric(value):
return value.isalnum() or value == ""
# Usage:
root = Tk()
root.geometry("200x200")
reg = root.register(allow_alphanumeric)
Entry(root, validate="key", validatecommand=(reg, "%P")).pack()
root.mainloop()