___ ___ erkimt Python - Tkinter - Dynamic CheckButton not take the value of the variable when referenced from another file / screen ______ qstntxt ___

I'm having the following problem: I can get the value of a dynamic variable (checkbutton) when the whole program is in a single file with only one function:

%pre%

However if I separate the code into two files, each one on a screen and two modules, I can only get the 0 values of the checkboxes:

File 1: TwoWindows2

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File 2: TwoWindows2

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Can anyone help me with this?

    

______ azszpr313528 ___

Variables from the other file can be accessed normally if you import the other file - but not with the %code% syntax, and use the filename as a prefix:

For example, you could put all the variables in a file name %code% and use a line like this

%pre%

And inside that file you can access the variables with %code% and so on.

Your code is pretty messy, but sometimes doing is the only way to learn - I recommend a third file, why else can you to fall into a problem of circular import dependency, the way it is working.

Another note: The keyword "global" only makes sense within functions - and says that those variables within the function will be visible in that module (file) - (and thus will be visible from the other files using the form prefix, as I showed above): using "global" inside classes and outside functions does not make sense. (It would even make a difference, but one has to know a lot Python to know exactly what it is doing, and even then, it would hardly be the right way to do anything.)

    

___

I'm having the following problem: I can get the value of a dynamic variable (checkbutton) when the whole program is in a single file with only one function:

import string
from tkinter import *
import tkinter as tk
qtdvinhos = 3
linhacheck = 1
var=dict()
mostra = Tk()
mostra.geometry("650x400")
mostra.title("Sydvinn - Vinhos cadastrados")
def Lecheck(event):
    for x in range(1,qtdvinhos):
        stringcheck = 'Check ' + str(x) + ': ' +str(var[x].get())
        print(stringcheck)
for x in range(1,qtdvinhos):
    var[x]=IntVar()
    check1 = Checkbutton(mostra, variable=var[x])
    check1.grid(row=linhacheck, column=0)
    linhacheck= linhacheck+1
button_excluir = Button(mostra, text="Pega Valor")
button_excluir.bind("<Button-1>", Lecheck)
button_excluir.grid(row=4, column=4)

mostra.mainloop()

However if I separate the code into two files, each one on a screen and two modules, I can only get the 0 values of the checkboxes:

File 1: TwoWindows2

import string
from tkinter import *
import tkinter as tk


class ChamaClasse:
    global Lecheck
    global var
    var={}
    global qtdvinhos
    qtdvinhos = 3

    def Lecheck(event):
        for x in range(1,qtdvinhos):
            stringcheck = 'Check ' + str(x) + ': ' +str(var[x].get())
            print(stringcheck)

    def Abrejanela(event):       
        global linhacheck
        linhacheck = 1
        mostra = Tk() 
        mostra.geometry("650x400")
        mostra.title("Sydvinn - Vinhos cadastrados")

        for x in range(1,qtdvinhos):
            var[x]=IntVar()
            check1 = Checkbutton(mostra, variable=var[x])
            check1.grid(row=linhacheck, column=0)
            linhacheck= linhacheck+1

        button_excluir = Button(mostra, text="Pega Valor")
        button_excluir.bind("<Button-1>", Lecheck)
        button_excluir.grid(row=4, column=4)

        mostra.mainloop()

File 2: TwoWindows2

import string
from tkinter import *
import tkinter as tk
from DuasJanelasPT1 import ChamaClasse

novo = Tk()
novo.geometry("650x400")
novo.title("Sydvinn - Vinhos cadastrados")
checks = dict()


button_excluir = Button(novo, text="Chama o Mechama")
checks = button_excluir.bind("<Button-1>", ChamaClasse.Abrejanela)
button_excluir.grid(row=4, column=4)

novo.mainloop()

Can anyone help me with this?