If you check the documentation for reporting in pytest-cov, you can see how to manipulate the report and generate extra versions.
For example, adding the option --cov-report term-missing
you'll get the missing lines printed in the terminal.
A more user friendly option, would be to generate an html report by usign the --cov-report html
option. Then you can navigate to the generated folder (htmlcov
by default) and open the index.html
with your browser and navigate your source code where the missing lines are highlighted.