Sphinx is a tool for producing documentation for Python projects, using
 reStructuredText as markup language.
 .
 Sphinx features:
  * HTML, CHM, LaTeX output,
  * Cross-referencing source code,
  * Automatic indices,
  * Code highlighting, using Pygments,
  * Extensibility. Existing extensions:
    - automatic testing of code snippets,
    - including docstrings from Python modules.
 .
 Build-depend on sphinx if your package uses /usr/bin/sphinx-*
 executables. Build-depend on python3-sphinx if your package uses
 the Python API (for instance by calling python3 -m sphinx).