How to test the line coverage of OpenCV-python

I write a test file for OpenCV-python, and I want to know the coverage of my test file, but I try to test by, which can only test on python interface. I’d like to know how to test the line coverage on OpenCV-python! Thank you very much

please explain, what (you think) that is.

opencv is a c++ library, the python bindings are only shallow, auto-generated wrappers around c++ functionality.

and btw, there are unit tests, performance tests, and even python tests for those wrappers, too, care to take a look at github ?

can you give me a github website

Did you open all this issues?