Prettier formatting for ?_trace=1 traces

Install this plugin in the same environment as Datasette.

datasette install datasette-pretty-traces

Once installed, run Datasette using --setting trace_debug 1:

datasette fixtures.db --setting trace_debug 1

Then navigate to any page and add ?_trace= to the URL:

http://localhost:8001/?_trace=1

The plugin will scroll you down the page to the visualized trace information.

You can also visit the dedicated demo page to see the fetch() interception feature in action:

http://localhost:8001/-/pretty-traces?_trace=1

You can try out the demo here:

• /?_trace=1 tracing the homepage
• /github/commits?_trace=1 tracing a table page

To set up this plugin locally, checkout the code and run the tests with uv run pytest:

cd datasette-pretty-traces
uv run pytest

To try your development version of plugin run it like this:

uv run datasette fixtures.db --setting trace_debug 1