How to check if it has a class running?

Question

I made this basic code just to send here to see if I could find a solution.

I wanted the code to do the following: when I pressed the button press it calls the other class with the other button and if I press the button again it will check if the class is still showing so as not to add another X button. of my code for you to see the result and follows a code base for readers to understand.

https://i.stack.imgur.com/KRJS8.jpg

from tkinter import *
class Window:
    def __init__(self,root):
        self.frame = Frame(root)
        self.frame.pack(side = LEFT)
        self.frame1 = Frame(root)
        self.frame1.pack()
        self.But = Button(self.frame,text = 'Press', command = self.ButOk)
        self.But.pack(side = LEFT,anchor = E)

    def ButOk(self):
        self.Aux = False
        self.Aux = not self.Aux
        if self.Aux:
            Window1(root)

class Window1:
    def __init__(self,root):
        self.fram = Frame(root)
        self.fram.pack(side = LEFT)
        self.fram1 = Frame(root)
        self.fram1.pack()

        self.But = Button(self.fram, text = 'X',command = self.close)
        self.But.pack(side =RIGHT,anchor = W)
    def close(self):
        self.Aux1 = False
        self.Aux1 = not self.Aux1
        if self.Aux1:
            self.fram.pack_forget()
root=Tk()
Window(root)
root.mainloop()

I expect a result in which when the user presses the button, it does not generate this "windows".

Rethink your approach, read [Switch between two frames in tkinter](https://stackoverflow.com/a/7557028/7414759) — stovfl, Mar 31 '19 at 14:02
@stovfl: I think that's bad advice. Why would switching to more complicated code solve this problem? — Bryan Oakley, Mar 31 '19 at 14:25
Maybe. As long as @Giovanni don't commented about my advice we will never know. — stovfl, Mar 31 '19 at 16:05

score 1 · Accepted Answer · answered Mar 31 '19 at 13:38

1

If I understood your question correctly, you want to ensure that multiple windows are not created from the multiple clicks of the button on your root level window.

Please try to use TopLevel widget when creating multiple windows. Additionally, you can check if a Toplevel widget exists using the following code:

if tkinter.Toplevel.winfo_exists(toplevel_name)==1:
    self.Aux = False

answered Mar 31 '19 at 13:38

FrainBr33z3

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Eeee, now I understand, it worked well here, thank you very much. – Giovanni Felicio Apr 01 '19 at 14:55

How to check if it has a class running?

1 Answers1