Creating a Drop-Down Menu in PySimpleGUI

PySimpleGUI is a popular Python GUI framework that allows you to easily create user interfaces for your programs. In this tutorial, we will show you how to create a drop-down menu using PySimpleGUI.

Step 1: Install PySimpleGUI

Before we start, make sure that you have PySimpleGUI installed on your system. You can install PySimpleGUI using pip:

pip install PySimpleGUI

Step 2: Import the necessary modules

To create a drop-down menu in PySimpleGUI, you will need to import the PySimpleGUI module. You can do this by adding the following line of code at the top of your Python script:

import PySimpleGUI as sg

Step 3: Create a drop-down menu

To create a drop-down menu in PySimpleGUI, you can use the sg.DropDown element. Below is an example code snippet that shows how to create a simple drop-down menu with three options:

layout = [
    [sg.Text('Select an option:')],
    [sg.DropDown(['Option 1', 'Option 2', 'Option 3'])],
    [sg.Button('Ok')]
]

window = sg.Window('Drop-down menu example', layout)

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

    if event == sg.WIN_CLOSED or event == 'Ok':
        break

window.close()

In the code above, we first define the layout of our window by creating a list of lists. Each inner list represents a row in the window. In this case, we have a sg.Text element to display a label, a sg.DropDown element to create the drop-down menu, and a sg.Button element to close the window.

Step 4: Handling events

To handle events in PySimpleGUI, you can use a while loop that continuously reads events from the window and reacts accordingly. In the example above, we use a while loop that breaks when the window is closed or when the ‘Ok’ button is clicked.

Step 5: Display the window

After setting up the layout and event handling, you can display the window using the window.read() function. This function will display the window and wait for user input.

Step 6: Closing the window

Finally, remember to close the window using the window.close() function to clean up any resources used by the window.

That’s it! You now know how to create a drop-down menu in PySimpleGUI. Feel free to customize the options in the drop-down menu and add more elements to your window to create a more complex user interface.