python-coverage-doc 4.5.2+dfsg.1-4 (amd64 binary) in ubuntu focal

 Coverage.py is a tool for measuring code coverage of Python programs.
 It monitors your program, noting which parts of the code have been
 executed, then analyzes the source to identify code that could have
 been executed but was not.
 .
 This package installs the HTML documentation for Coverage.py.