PySide6DOM v0.8.9

Bring the simplicity of the Web DOM to Python PySide6 Desktop Applications.

Installation

pip install pyside6dom

Upgrade:

pip install --upgrade pyside6dom

PySide6DOM Tutorials:

Tutorials

PySide6DOM bridges the gap between web development and systems programming. It wraps the raw power of the PySide6 (C++/Qt) rendering engine inside the familiar, intuitive Document Object Model (DOM) paradigm used by JavaScript and HTML.

If you know how to build a web page using createElement (ce), getElementById (ge), and append (ba), you already know how to build high-performance, standalone Python desktop applications.

Notice how it looks very similar to JavaScript DOM scripting!

# styling_text.py

from pyside6dom import *

init_window('Our App', 700, 600)

ourTitle = ce('text')
ourTitle.textContent = 'Hi Everyone'
ourTitle.style.fontFamily = 'Arial'
ourTitle.style.fontSize = '70px'
ourTitle.style.fontWeight = 'bold'
ourTitle.style.color = 'rgb(255, 255, 255)'
ba(ourTitle)

run_app()

🌟 Why Use PySide6DOM?

• Zero HTML Parsing: This is not a web view or a browser wrapper. It generates native C++/Qt desktop widgets using Python, ensuring maximum performance.
• Familiar Syntax: Uses lightweight helper functions modeled directly after the web DOM (ce() for create element, ge() for get element, ba() for body append).
• Rapid Prototyping: Build user interfaces in seconds without getting bogged down in complex object-oriented boilerplate.
• Educational Bridge: The perfect stepping stone for web developers transitioning into local hardware control, computer vision, and systems engineering.

🚀 The Code: Web Logic meets Python Power

Look how clean and intuitive building a native desktop app becomes. No complex classes, no confusing layout managers - just straightforward DOM logic.

# input_upper.py

from pyside6dom import *

init_window('Our App', 700, 600)

our_greeting = ce('text')
our_greeting.textContent = 'Hi Everyone'
our_greeting.style.fontFamily = 'Arial'
our_greeting.style.fontSize = '70px'
our_greeting.style.fontWeight = 'bold'
our_greeting.style.color = 'rgb(255, 255, 255)'
ba(our_greeting)

word_input = ce('input')
word_input.placeholder = 'Enter Name'
def handle_input():
    ge('output_txt').textContent = word_input.value.upper()
word_input.oninput = handle_input
ba(word_input)

output_txt = ce('text')
output_txt.id = 'output_txt'
output_txt.textContent = 'Output'
ba(output_txt)

run_app()

📖 API Reference

Core Engine Functions

• init_window(title, width, height, icon): Initializes the main window and layout with icon for title bar and tray.
• run_app(): Starts the Qt application event loop.
• ce(tag): (document.createElement) Creates a native widget wrapped as a DOMElement.
• ge(id): (document.getElementById) Retrieves a previously created element by its .id.
• ba(child, parent=None): (appendChild) Appends an element to the main window or a parent container.
• set_theme(css) or set_global_style(css): Applies a universal CSS stylesheet to the entire application.
• setInterval(callback, ms): Repeatedly runs a callback at the specified millisecond interval.
• cl(*args) or console.log(*args): Logs output to the console, mirroring web debugging.
• Sound Implemented using .wav files
• show_commands(): shows a list of available commands
• true_ai: 16 logic gates built in (TAU, CON, XOR, XNOR, AND, NAND, OR, NOR, MI, MNI, CI, CNI, LP, LC, RP, RC
• position absolute implemented with left and top
• grid
• className
• #selector can now be used in css
• text-align
• mainDiv.append(button_two)
• mainDiv.remove()
• div supports textContent and innerHTML
• div has 0px margin
• button:active
• element.readOnly = 'true' or element.readOnly = 'false'
• element.focus()
• element.blur() *element.onenter for enter button presses
• addEventListener
• anchor element, text-decoration textDecoration, href, target
• element.click()
• open_file(which_file)
• show_in_file_explorer(which_file)
• oncontextmenu or onrightclick for right mouse button,
• onauxclick or onmiddleclick for middle mouse button
• onclick or onleftclick for left mouse button click
• dom.get_year()
• dom.get_month()
• dom.get_day_of_month()
• dom.get_day_name()
• dom.get_day_of_week()
• dom.get_day_of_week_iso()
• dom.get_month_day_year()
• dom.get_year_month_day()
• dom.get_hours()
• dom.get_minutes()
• dom.get_seconds()
• dom.is_target_date(target_string)
• dom.open_file(whichFilePath)
• dom.show_in_file_explorer(path)
• element.title
• element.titleFontSize
• input onchange
• element.style.width = '100%'
• element.style.height = '100%'
• element.style.bottom = '100px'
• element.style.right = '100px'
• element.style.overflow = 'hidden'

Supported Tags & Widget Bindings

• text / p / h1 / span: Text labels.
  • Properties: .textContent, .innerHTML
• button: Standard push button.
  • Properties: .textContent, .onclick
• input: Single-line text input field.
  • Properties: .value, .placeholder, .oninput
• textarea: Multi-line text edit area.
  • Properties: .value, .placeholder, .oninput
• slider: Numeric range slider.
  • Properties: .value, .oninput
• checkbox: Toggle checkbox.
  • Properties: .checked, .textContent, .oninput
• select / dropdown: Dropdown selection menu.
  • Properties: .options (list), .value (selected text), .oninput
• img: Image display element with Aspect Ratio
  • Properties: .src (file path)
• video: Video display element with Aspect Ratio
• div: Standard container widget for grouping elements.
• scroll_div: Scrollable container area for overflow content.
• CSS keywords: div, text, button, scroll_div, select, option
• flex: row and column

Universal Properties & Methods

All elements support the following properties:

• .id: Unique string identifier for retrieval with ge(id).
• .style("css_string"): Inline CSS styling targeting the specific element.

We can type:
element.style.color = 'rgb(0, 255, 255)'

🎨 CSS Styling & Tag Mapping

The engine translates standard HTML tags into PySide6 widgets behind the scenes. This allows you to write clean, web-style CSS for your desktop applications.

(Note: If you are already a PySide6 veteran, standard Qt class names like QPushButton will still work perfectly!)

Layout & Containers

• body ➔ QMainWindow (and central widget)
• div ➔ QWidget
• scroll_div ➔ QScrollArea

Text & Media

• text, h1, p, span, img ➔ QLabel

Interactive Controls

• button ➔ QPushButton
• input ➔ QLineEdit
• textarea ➔ QPlainTextEdit
• checkbox ➔ QCheckBox
• slider ➔ QSlider
• select (or dropdown) ➔ QComboBox
• select option ➔ QComboBox QAbstractItemView (The dropdown list items)

CSS Properties

• font-color ➔ color

Works with all popular libraries:

• opencv
• numpy
• pandas
• sqlite3
• pytorch
• sympy etc...

pyside6dom Created by Christopher Andrew Topalian

College of Scripting Music & Science

Disclaimer: This is an independent open-source educational project. "PySide" and "Qt" are registered trademarks of The Qt Company. This project is not affiliated with, endorsed by, or sponsored by The Qt Company.

Easy Example:

# easy_example_with_set_theme.py

from pyside6dom import *

set_theme("""
    body {
        background-color: rgb(30, 30, 30);
    }
    button {
        background-color: rgb(0, 0, 0);
        color: cyan;
        /* we write 1px before solid */
        border: 1px solid rgb(255, 255, 255);
        border-radius: 5px;
    }
    button:hover {
        background-color: #555;
        border-color: rgb(0, 255, 255);
    }
    button:pressed {
        font-weight: bold;
    }
    input {
        border: 1px solid white;
    }
""")

init_window("Our App", 600, 400)

welcomeMessage = ce('text')
welcomeMessage.textContent = 'Welcome'
ba(welcomeMessage)

sayHiBtn = ce('button')
sayHiBtn.textContent = 'Hi'
def handle_click():
    welcomeMessage.textContent = 'Hi'
sayHiBtn.onclick = handle_click
ba(sayHiBtn)

sayHowdyBtn = ce('button')
sayHowdyBtn.textContent = 'Howdy'
def handle_click():
    welcomeMessage.textContent = 'Howdy'
sayHowdyBtn.onclick = handle_click
ba(sayHowdyBtn)

sayThisBtn = ce('button')
sayThisBtn.textContent = 'Custom'
def handle_click(message):
    welcomeMessage.textContent = message
sayThisBtn.onclick = lambda: handle_click('Hey Now')
ba(sayThisBtn)

run_app()

COMMON COMMANDS:

Install:

pip install pyside6dom

Upgrade:

pip install --upgrade pyside6dom

GitHub: https://github.com/ChristopherAndrewTopalian/pyside6dom

PyPi: https://pypi.org/project/pyside6dom/

PyPi_Stats: https://pypistats.org/packages/pyside6dom

How to Download the GitHub Repository

1. Click the green Code Button on the GitHub page
2. Choose Download ZIP
3. Save the Zip File
4. Extract All

Hapy Scripting :-)

//----//

// Dedicated to God the Father

// Copyright (c) 2026-present Christopher Andrew Topalian

// Apache License Version 2.0, January 2004 http://www.apache.org/licenses/

// GitHub: https://github.com/ChristopherAndrewTopalian/pyside6dom

// PyPI: https://pypi.org/project/pyside6dom/

// https://github.com/ChristopherAndrewTopalian

// https://github.com/ChristopherTopalian

// https://sites.google.com/view/CollegeOfScripting