How to call another python script from a .py file in a new window

Question

I ran into a problem where I want to click a button on a fullscreen app.

test1

from tkinter import *
from tkinter import ttk
from tkinter import messagebox
import os

root = Tk()
root.title('Gamesim')
root.geometry('500x400')

def cmdopen():
    os.system('C:\Users\User\Desktop\test2.py')


btn = Button(text='test', command=cmdopen)
btn.pack()

root.mainloop()

test2

from tkinter import *
from tkinter import ttk
from tkinter import messagebox
import os


root = Tk()
root.title('Gamesim')
root.geometry('1870x1080')
root.attributes("-topmost", True)


btn = Button(text='test2')
btn.pack()

root.mainloop()

What it does it displays the test2 interface, but test one stops responding. What I want is that the test2 will apear above and both will respond and are diffrent windows.

Im bad in english so sorry if I have some problems.

Instead of os.system('C:\Users\User\Desktop\example.py') use a simple import. It should fix your problems — TheLizzard
– TheLizzard, Commented May 7, 2021 at 18:06
Consider if this solution fits your needs: stackoverflow.com/questions/48817749/… — Levente Simofi
– Levente Simofi, Commented May 7, 2021 at 18:18
If not, you need to create an other process or thread, where you call the other app like you did with os.system(). In your case the second app's loop is blocking the first app. — Levente Simofi
– Levente Simofi, Commented May 7, 2021 at 18:20
@TheLizzard I think only one root window can exist inside an app (and only one mainloop). — Levente Simofi
– Levente Simofi, Commented May 7, 2021 at 18:25

Hampus Larsson · Accepted Answer · 2021-05-07 19:01:56Z

0

If you're okay with having one "master" window that keeps track of the other windows, then you can do something like this:

from tkinter import *
from tkinter.ttk import *
from functools import partial


class subWindow(Toplevel):
    def __init__(self, master=None):
        super().__init__(master=master)

def createSubwindow(master):
    """Creates a subWindow of 'master' and sets it's options"""
    subWin = subWindow(master)
    subWin.title('SubWindow')
    subWin.geometry('500x400')
    subWin.attributes("-topmost", True)
    btn = Button(subWin, text='Button Inside of SubWindow')
    btn.pack()

# Creating the master-window
root = Tk()
root.title('MasterWindow')
root.geometry('500x400')

# Creates a partial of the createSubwindow, so that we can execute it easier in the button.
subWinPartial = partial(createSubwindow, root)

# Installs the button, with the partial function as a command.
btn = Button(root, text='Create Sub Window', command=subWinPartial)
btn.pack()

# Runs the mainloop, that handles all the windows.
root.mainloop()

answered May 7, 2021 at 19:01

Hampus Larsson

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5 Comments

TheLizzard Over a year ago

I think OP is trying to modularise their code. Also it would be nice if you can follow PEP 8's naming convention.

Hampus Larsson Over a year ago

@TheLizzard You can "modularise" his code, using the same thought-process that I am using in my code.

TheLizzard Over a year ago

Can you please add a footnote that just says that the createSubwindow can be defined in another file and imported using from <filename> import createSubwindow? I am not 100% sure if OP knows how imports even work given their code. They used os.system('C:\Users\User\Desktop\example.py') instead of import example which suggests they are new to python

marksh16 Over a year ago

I tried to use import but it wont work unless I use OS to insert the path. The effect will be the same.

marksh16 Over a year ago

The other file is actually in another folder unlike in my example.

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