Creating Independent GUIs with PySimpleGUI Using Python’s Multiprocessing Module

Creating independent GUIs using Python Multiprocessing module allows you to run multiple GUI windows concurrently without blocking the main thread. This can be useful when you want to create separate interfaces for different tasks, or when you want to display real-time updates in one window while performing computations in another.

In this tutorial, we will use PySimpleGUI to create the GUI windows and the Multiprocessing module to run them concurrently. PySimpleGUI is a simple yet powerful GUI framework for Python that allows you to create custom GUIs with ease.

Step 1: Install PySimpleGUI

First, you need to install PySimpleGUI by running the following command in your terminal:

pip install PySimpleGUI

Step 2: Import the necessary modules

Next, import the required modules in your Python script:

import PySimpleGUI as sg
import multiprocessing

Step 3: Define the functions for creating GUI windows

Next, define functions that will create the GUI windows. Each function should define the layout of the window and handle event callbacks:

def create_window1():
    layout = [[sg.Text('Window 1')],
              [sg.Button('Button 1')]]

    window = sg.Window('Window 1', layout)

    while True:
        event, values = window.read()

        if event == sg.WIN_CLOSED:
            break

    window.close()

def create_window2():
    layout = [[sg.Text('Window 2')],
              [sg.Button('Button 2')]]

    window = sg.Window('Window 2', layout)

    while True:
        event, values = window.read()

        if event == sg.WIN_CLOSED:
            break

    window.close()

Step 4: Run the GUI windows concurrently using Multiprocessing

Now, create a new process for each GUI window using the Multiprocessing module:

if __name__ == '__main__':
    p1 = multiprocessing.Process(target=create_window1)
    p2 = multiprocessing.Process(target=create_window2)

    p1.start()
    p2.start()

    p1.join()
    p2.join()

You can run this script and you will see two separate GUI windows appear on your screen. You can interact with each window independently without blocking each other.

In summary, using the Multiprocessing module in Python allows you to create independent GUI windows that run concurrently without blocking the main thread. This can be useful for creating multi-tasking applications or displaying real-time updates in separate windows.PySimpleGUI simplifies the process of creating GUI windows, making it easy to design custom interfaces for your applications.