iskg 0.3.10

IFAZ Widget Toolkit — widgets Python livianos sobre pywebview

ISKG

IFAZ Widget Toolkit — Python GUI framework ligero

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ISKG renders native-looking widgets as HTML/CSS/JS inside a native window via pywebview.

No browser, no HTTP server — just a Python process and a lightweight WebView.

Features

• 38 widgets: Button, Entry, ComboBox, Slider, ProgressBar, Canvas, TreeView, DataGrid, Knob, Gauge, Notebook, MenuBar, and more.
• Layout engines: pack, grid (with sticky + weights), place.
• Theming: 10 built-in themes (ifaz, desert, infinity, cyberdusk, light, dracula, nord, gruvbox, monokai, catppuccin), CSS variable system.
• Cross-platform: Linux, Windows, macOS (same codebase).
• Zero HTTP: No server, no ports, no browser tabs — just a window.
• JS bridge: Bidirectional Python ↔ JavaScript calls for real-time UI updates.
• .tooltip on every widget: Set a tooltip via property or config().
• after() timers: Cancelable timer objects with .cancel() and .running.
• Debug mode: Pass debug=True to Application() to log JS errors to stderr.
• 7 embedded fonts (SIL OFL): Inter, JetBrains Mono, Nunito, Manrope, Space Grotesk, Fira Sans, Playfair Display — no CDN, todo embebido.

Comparison — lightness & footprint

Framework	Dependencies	Installed size	Own code	Notes
Tkinter	0 (stdlib)	~1 MB	—	No modern widgets, dated look
Remi	1 (bottle/werkzeug)	~2 MB	~15 KLoC	Browser-based, needs a tab
ISKG	1 (pywebview)	~2 MB	~6 KLoC	Native window, modern widgets
PySimpleGUI	1 (tkinter/Qt)	~5 MB	~100 KLoC	Wrapper, not a framework
Dear PyGui	0 (bundled)	~10 MB	~80 KLoC	GPU-accelerated, no native look
Kivy	SDL2, GLEW, etc	~15 MB	~200 KLoC	Own UI language, heavy
wxPython	wxWidgets	~20 MB	~150 KLoC	Native look, complex build
PyQt/PySide	Qt (~100 MB)	~50 MB	~500 KLoC	Full-featured, huge size
NiceGUI	FastAPI + uvicorn + Vue	~30 MB	~50 KLoC	Browser-based, async
Flet	Flutter SDK	~200 MB	—	Requires Flutter toolchain

ISKG ranks 3rd in lightness — only Tkinter and Remi are smaller. Among frameworks that render in a native window (not a browser tab), ISKG is the lightest after Tkinter.

Quick start

# desde PyPI
pip install iskg

# from GitHub Releases
pip install https://github.com/Iskander-mlander/ISKG/releases/download/v0.3.9/iskg-0.3.9-py3-none-any.whl

from iskg import (
    Application, Button, Label, Frame, Knob, LEDDisplay,
    Slider, ComboBox, ToggleSwitch, Separator, IndicatorLED,
)

app = Application(title="ISKG Dashboard", width=680, height=480)

counter = 0

def on_knob(data):
    led.value = int(float(data))

def on_slider():
    throttle_led.value = int(slider.value)
    ind_led.active = slider.value > 50

def on_arm():
    global counter; counter += 1
    status.config(text=f"Armed x{counter}")

def on_disarm():
    status.config(text="Standing By")

def on_theme(data=None):
    app.set_theme(combo.value)

root = Frame()
root.grid_columnconfigure(0, weight=1)
root.grid_columnconfigure(1, weight=1)

Label(parent=root, text="ISKG DASHBOARD", anchor="center",
      font="bold 16px").grid(row=0, column=0, columnspan=2, pady=8)

# left — Knob + LED
left = Frame(parent=root)
left.grid(row=1, column=0, sticky="nsew", padx=10, pady=6)
Label(parent=left, text="RPM CONTROL", anchor="center",
      font="bold 12px").grid(pady=6)
knob = Knob(parent=left, from_=0, to=3000, value=0,
            size=90, color="cyan")
knob.bind("change", on_knob)
knob.grid(sticky="c", pady=4)
led = LEDDisplay(parent=left, value=0, digits=4,
                 color="cyan", height=36)
led.grid(sticky="c", pady=6)

# right — Slider + LED display
right = Frame(parent=root)
right.grid(row=1, column=1, sticky="nsew", padx=10, pady=6)
Label(parent=right, text="THROTTLE", anchor="center",
      font="bold 12px").grid(pady=6)
slider = Slider(parent=right, from_=0, to=100,
                value=0, command=on_slider)
slider.grid(sticky="we", pady=8)
throttle_led = LEDDisplay(parent=right, value=0, digits=3,
                          color="amber", height=36)
throttle_led.grid(sticky="c", pady=4)
ind_led = IndicatorLED(parent=right, color="red")
ind_led.grid(sticky="c", pady=2)

# bottom bar
bottom = Frame(parent=root)
bottom.grid(row=2, column=0, columnspan=2, sticky="we", padx=10, pady=6)
Button(parent=bottom, text="ARM", command=on_arm).grid(padx=4)
Button(parent=bottom, text="DISARM", command=on_disarm).grid(padx=4)
Label(parent=bottom, text="Theme:").grid(padx=(12, 2))
combo = ComboBox(parent=bottom,
    values=["ifaz", "desert", "infinity", "cyberdusk", "light", "dracula", "nord", "gruvbox", "monokai", "catppuccin"],
    command=on_theme).grid(padx=4)
ToggleSwitch(parent=bottom).grid(padx=4)
status = Label(parent=bottom, text="Standing By")
status.grid(padx=8)

app.add(root)
app.run()

Documentation

Full API reference: github-pages

License

GPLv3 — see LICENSE.