Thonny plugin: syntax highlighting for HTML files
Project description
thonny-html-highlight
Syntax highlighting for HTML files in the Thonny IDE.
By default Thonny treats .html and .htm files as plain text. This plugin adds colour highlighting for:
- Tag names (
div,span,a, …) - Attribute names (
class,href,data-value, …) - Attribute values (
"foo",'bar', …) - HTML comments (
<!-- … -->) - DOCTYPE declarations (
<!DOCTYPE html>) - Entity references (
&,©,©, …) - Angle-bracket punctuation
Requirements
- Thonny 5.0 or later
- Python 3.13 or later (bundled with Thonny 5)
Installation
Via Thonny's built-in package manager (recommended)
- Open Thonny.
- Go to Tools → Manage packages…
- Search for
thonny-html-highlight. - Click Install.
- Restart Thonny.
Via pip / uv (command line)
# Using pip
pip install thonny-html-highlight
# Using uv
uv pip install thonny-html-highlight
Then restart Thonny.
From source (development)
git clone https://github.com/mrmatho/thonny-html-highlight.git
cd thonny-html-highlight
uv pip install -e .
Restart Thonny after installing.
Usage
Open any .html or .htm file in Thonny — highlighting is applied automatically. No configuration is required.
Known limitations
- Content inside
<script>and<style>tags is treated as HTML, which may produce incorrect highlighting for JavaScript or CSS within those blocks. - Colours follow Thonny's default light theme. Integration with custom syntax themes is planned for a future release.
Development
# Run tests
uv run pytest
# Run tests with verbose output
uv run pytest -v
Licence
MIT
Release history Release notifications | RSS feed
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