sistine 0.3.3

HTML builder with server routing for Python

Sistine

React-like UI framework for Python. Build reactive web UIs with HTML/Tailwind + Alpine.js, powered by Streamlit.

Installation

pip install sistine

Quick Start

from sistine import Sistine, el, fetch

app = Sistine(title="My App")
app.use_tailwind()

@app.sistine("/")
def home():
    return str(
        el.div(cls="min-h-screen bg-gray-50 p-10 flex flex-col items-center")(
            el.h1(cls="text-4xl font-extrabold text-blue-600 mb-8")("Hello Sistine!"),
            el.p(cls="text-gray-600")("Welcome to the future of Python web UI.")
        )
    )

if __name__ == "__main__":
    app.run()

python app.py

Reactive Components (sistine.components)

Sistine provides ready-to-use components with Alpine.js for client-side interactivity — no page reloads needed.

QueryTable — Auto-generated table from API

from sistine.components import QueryTable

QueryTable(
    query="fetch_pokemon",
    columns=["id", "name"],
    params={"limit": 10},
)

QueryDropdown — Select populated from API

from sistine.components import QueryDropdown

QueryDropdown(
    query="fetch_types",
    label_key="name",
    placeholder="Pilih Tipe Pokémon...",
)

QueryView — Reactive data display with auto-refresh

from sistine.components import QueryView

QueryView(
    query="server_status",
    refetch_interval=5,  # auto-refresh every 5s
    children=el.div(cls="text-lg font-bold", x_text="data.cpu")(),
)

QueryList — Iterate over API data

from sistine.components import QueryList

QueryList(
    query="fetch_berries",
    iterator="berry in data",
    template=el.span(cls="badge", x_text="berry.name")(),
)

QueryMutation — POST/PUT/DELETE with confirm dialog

from sistine.components import QueryMutation

QueryMutation(
    query="add_favorite",
    body_js='{ name: "Pikachu" }',
    confirm="Add to favorites?",
    trigger=el.button(cls="bg-yellow-400 text-white px-4 py-2 rounded")("⭐ Favorite"),
)

RefetchButton — Manual refresh

from sistine.components import RefetchButton

RefetchButton(target="fetch_pokemon", label="🔄 Refresh")

Server Queries (@app.query)

Register Python functions as JSON endpoints — callable from browser via sistine.fetch():

from sistine import Sistine, el, fetch

app = Sistine()

@app.query
def fetch_pokemon(limit=10):
    data = fetch(f"https://pokeapi.co/api/v2/pokemon?limit={limit}")
    return data.get("results", [])

@app.query(ttl=60)  # cached for 60s
def get_prices():
    return fetch("https://api.example.com/prices")

@app.sistine("/")
def home():
    return str(
        QueryTable(query="fetch_pokemon", columns=["name"], params={"limit": 5})
    )

Routing

@app.sistine("/")
def home():
    return str(el.h1("Home"))

@app.sistine("/user/{user_id}")
def profile(user_id: int):
    return str(el.h1(f"User {user_id}"))

Navigate via ?route=/user/42 query param, or use el.a(href="/?route=/user/42").

HTML Builder (el)

Chaining syntax — attributes first, children second:

el.div(cls="card p-4 rounded shadow")(
    el.h2(cls="text-xl font-bold")("Title"),
    el.p(cls="text-gray-600")("Description")
)

CSS & Tailwind

app.use_tailwind()
app.css("""
    .custom-class { animation: fadeIn 0.3s ease; }
""")

Examples

Check examples/query_showcase.py for a complete demo of all query components.