HTML/SVG generation for Python. Zero dependencies.
Project description
html-tags
[!WARNING] Under active development — Mar 2026
Concise, immutable HTML/SVG generation for Python. Zero dependencies.
from html_tags import setup_tags, setup_svg
setup_tags(); setup_svg()
page = Html(
Head(Title("hello")),
Body(
H1("hello world", cls="title"),
Svg(Circle(cx="50", cy="50", r="40")),
)
)
Tags are immutable — call to add children or attributes:
Div(cls="card")("content", id="main")
SVG elements self-close correctly (<line />) and shapes like Circle accept children for animations.
Datastar SSE helpers included:
from html_tags import patch_elements, patch_signals, datastar_stream
Gotchas
Keyword attribute names convert _ to -:
Circle(stroke_width="2") # → stroke-width="2"
Dict keys pass through verbatim — use for special syntax or reserved names:
Div({"data-on:click__once": "@post('/api')"})
FeBlend({"mode": "multiply"})
HTML void elements render without slash (<br>), SVG elements self-close (<line />).
Security
Validates against injection, not HTML structure:
<script>/<style>content checked for closing tag injection- URL attributes reject
javascript:andvbscript:schemes - Attribute names validated against injection patterns
- Void elements reject children,
<html>rejects nesting
Structural correctness (e.g. <li> inside <ul>) is left to the browser.
Install
pip install html-tags
License
MIT
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