Bottom Page

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
 [Tkinter] Tkinter button help and general commands
#1
Hey guys, sorry this is gonna be a long thread and I'm very basic at python and tkinter, so just stay with me Big Grin .

So im trying to make a login window, and i have coded this, which makes the window but the button doesn't work and i don't really understand .self command:

import tkinter
window = tkinter.Tk()
window.geometry('250x190')
window.title("Encrypter")

U = tkinter.Label(window, text = "Username", height = 4)
U.grid(row = 1, column = 0, padx =1, pady = 1)
UE = tkinter.Entry(window, width = 20)
UE.grid(row = 1, column = 1, padx = 1, pady = 1)

P = tkinter.Label(window, text = "Password")
P.grid(row = 2, column = 0, padx = 1, pady = 1)
PE = tkinter.Entry(window)
PE.grid(row = 2, column = 1 , padx = 1, pady = 1)

EB = tkinter.Button(window, text = "Validate ID", fg = "white", bg = "red")
EB.grid(row = 3, column = 1 , padx = 1, pady = 1)

CB = tkinter.Checkbutton(window, text = "keep logged in")
CB.grid(columnspan = 2)


def tkinter_button_clicked(self):
        # print("Clicked")
        username = UE.get()
        password = PE.get()

        # print(username, password)

        if username == "iceman" and password == "Password":
            tm.showinfo("Login info", "Welcome Iceman")
        else:
            tm.showerror("Login error", "Incorrect username")

window.mainloop()
I've looked at another person's example and it works but im trying to learn myself, but here's theirs:

from tkinter import *
import tkinter.messagebox as tm


class LoginFrame(Frame):
    def __init__(self, master):
        super().__init__(master)

        self.label_username = Label(self, text="Username")
        self.label_password = Label(self, text="Password")

        self.entry_username = Entry(self)
        self.entry_password = Entry(self, show="*")

        self.label_username.grid(row=0, sticky=E)
        self.label_password.grid(row=1, sticky=E)
        self.entry_username.grid(row=0, column=1)
        self.entry_password.grid(row=1, column=1)

        self.checkbox = Checkbutton(self, text="Keep me logged in")
        self.checkbox.grid(columnspan=2)

        self.logbtn = Button(self, text="Login", command=self._login_btn_clicked)
        self.logbtn.grid(columnspan=2)

        self.pack()

    def _login_btn_clicked(self):
        # print("Clicked")
        username = self.entry_username.get()
        password = self.entry_password.get()

        # print(username, password)

        if username == "Iceman" and password == "Password":
            tm.showinfo("Login info", "Welcome Iceman")
        else:
            tm.showerror("Login error", "Incorrect username")


root = Tk()
lf = LoginFrame(root)
root.mainloop()
If you made it this far welldone and thanks for any help.
Quote
#2
The button has not had an event bound to it by setting the callback function on the command parameter.
self is not required when using the function outside of a class as its no longer a method.
The called function will need to be moved so it is defined before trying to add it to the command parameter.
tkinter.messagebox will need importing before you can use it.
Quote

Top Page

Possibly Related Threads...
Thread Author Replies Views Last Post
  Returning a value from a tkinter.button call markr0804 4 134 Feb-16-2020, 10:35 AM
Last Post: markr0804
  Problem with Submit button Tkinter Reldaing 2 158 Jan-05-2020, 01:58 AM
Last Post: balenaucigasa
  tkinter button not accessing the command when clicked jhf2 1 240 Nov-23-2019, 10:17 PM
Last Post: DT2000
  Tkinter button in for Simpsunt 3 200 Nov-23-2019, 01:41 AM
Last Post: Larz60+
  [Tkinter] Checking button click in Tkinter GalaxyCoyote 3 399 Oct-20-2019, 03:28 AM
Last Post: GalaxyCoyote
  [PySimpleGui] How to alter mouse click button of a standard submit button? skyerosebud 3 576 Jul-21-2019, 06:02 PM
Last Post: FullOfHelp
  [Tkinter] Tkinter window pop up again when i click button Orimura_Sandy 1 821 May-12-2019, 08:17 PM
Last Post: joe_momma
  tkinter- adding a new window after clicking a button built on the gui ShashankDS 2 1,866 Apr-18-2019, 12:48 PM
Last Post: ShashankDS
  [Tkinter] Help with tkinter; images and button commands SheeppOSU 2 715 Mar-28-2019, 02:01 AM
Last Post: woooee
  Tkinter Button Settings kaanertugrul 3 1,465 Jan-25-2019, 03:41 PM
Last Post: Larz60+

Forum Jump:


Users browsing this thread: 1 Guest(s)