Python: How to change data type and override a variable from imported module

I have two python programs in same folder named main.py and tk_version.py
I am importing main.py in tk_version.py
I have a variable in main.py which has default value lets say 'xyz'
Now in tk_version.py I am taking the value for the variable from user using Tkinter GUI.

So what I want is when main.py is executed the constant value must be taken and when tk_version.py is executed the value given by user override the default value.

Example:

main.py

var="default"
def show():
print(var)
if __name__ == '__main__':
show()


tk_version.py

from tkinter import *

import main

Main = Tk()

var= StringVar()
def e1chk():
global var
var = e1.get()
main.show()
return


e1=Entry(Main,textvariable=var,width=50)

e1.grid(row=0,column=5,sticky=NSEW)

b1=Button(Main,text="Save",command=e1chk)
b1.grid(row=0,column=8,sticky=NSEW)
Main.mainloop()


OUTPUT for main.py

>>>
=============== RESTART: C:/Users/Gupta Niwas/Desktop/main.py ===============
default
>>>


OUTPUT for tk_version.py (I have entered "abc" in Entry box)

>>>
============ RESTART: C:/Users/Gupta Niwas/Desktop/tk_version.py ============
default
>>>


I want variable to be StringVar to control the entry box values.

var

var

global

import main

main.var

1 Answer
1

Just add main. before your variable name.

main.

tk_version.py

tk_version.py

from tkinter import *

import main

Main = Tk()

main.var = StringVar()


def e1chk():
main.var = e1.get()
main.show()
return


e1 = Entry(Main, textvariable=main.var, width=50)

e1.grid(row=0, column=5, sticky=NSEW)

b1 = Button(Main, text="Save", command=e1chk)
b1.grid(row=0, column=8, sticky=NSEW)
Main.mainloop()


Output:

abc
>>>


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