Pytest: Deselecting tests

Question

With pytest, one can mark tests using a decorator

@pytest.mark.slow
def some_slow_test():
    pass

Then, from the command line, one can tell py

Answer 1

If you are trying to run the tests from inside a python file, that is, you run your tests by calling

$ python testfile.py

which has contents

import pytest

pytest.main()

and you want to know how to pass the CLI flag in to pytest.main, the answer is:

pytest.main(["-m", "not slow"])

PS - yes, there are legitimate reasons to call tests this way. Pray you never have to learn them.