Creating Dialog Windows and a Simple Zip Utility with PySimpleGUI

PySimpleGUI is introduced as a convenient Python library for building graphical user interfaces, especially useful in automation and operations tasks.

Installation : run pip install pysimplegui in the terminal, then verify with import PySimpleGUI in a Python session.

Window design patterns :

One‑shot window : appears once, suitable for notifications or data collection.

Persistent window : stays open until the user closes it, often used as the main application window.

Basic pop‑up functions (all prefixed with sg. ):

sg.popup('Notice!')

sg.popup_ok('Default popup')

sg.popup_yes_no('Yes/No popup')

sg.popup_cancel('Cancel button popup')

sg.popup_ok_cancel('OK/Cancel popup')

sg.popup_error('Error popup')

sg.popup_auto_close('Auto‑close after seconds')

Text‑scrolling popup uses sg.popup_scrolled(text, title='Hello') to display multi‑line messages.

User input popups :

sg.popup_get_text('Enter text') returns the entered string or None on cancel.

For password‑style input, the same function can hide characters.

File and folder selection :

sg.popup_get_file('Select file') lets the user pick a file and returns its path.

sg.popup_get_folder('Select folder') returns the chosen directory.

Progress meter example:

<code>for i in range(1000):
    sg.one_line_progress_meter('Progress', i+1, 1000, 'key', 'Progress bar')
</code>

Both horizontal and vertical orientations can be set, along with custom colors.

Putting it all together – a simple compression tool :

The application asks the user to choose a folder, then a destination for the zip file, compresses all files in the selected folder using the zipfile module, and finally shows the resulting archive size.

<code>import PySimpleGUI as sg
import zipfile
import os

folder = sg.popup_get_folder('请选择要压缩的文件夹')
zip_path = sg.popup_get_file(
    '请选择要保存的压缩包位置',
    save_as=True,
    default_extension='zip',
    file_types=(('压缩包', '.zip'), )
)

with zipfile.ZipFile(zip_path, 'w') as zipobj:
    for file in os.scandir(folder):
        zipobj.write(file.path, file.path.replace(folder, '.'))

zip_size = os.stat(zip_path).st_size // 1024
sg.popup(f'压缩包体积大小为：{zip_size} KB')
</code>

The tutorial includes screenshots of each popup type and the final result, illustrating how PySimpleGUI can streamline GUI creation for Python scripts.