Get Started - Rosettes

Install

pip install rosettes

Requires Python 3.14 or later. See installation for alternative methods.

from rosettes import highlight

html = highlight("def hello(): print('world')", "python")
print(html)

Output:

<div class="rosettes" data-language="python">
  <pre><code><span class="syntax-keyword">def</span> ...

Complete walkthrough from install to styled output.

For sites with many code blocks,highlight_many()provides 1.5-2x speedup.

Use semantic classes or Pygments-compatible themes.