There is the following example, on the page 28:

$ pytest -v --tb=no -k “(dict or ids) and not TestEquality”
=========================== test session starts ===========================
collected 24 items / 18 deselected / 6 selected
test_card.py::test_equality_with_diff_ids PASSED [ 16%]
test_card.py::test_from_dict PASSED [ 33%]
test_card.py::test_to_dict PASSED [ 50%]
test_classes.py::test_from_dict PASSED [ 66%]
test_classes.py::test_to_dict PASSED [ 83%]
test_structure.py::test_to_dict PASSED [100%]
==================== 6 passed, 18 deselected in 0.08s ====================

But tests test_from_dict() and test_to_dict() are missing (or at least were not mentioned) in the test_classes.py before that page. And this confuses.

I see that tests are in the source code that accompanies the book, so maybe these tests will be added to the test_classes.py later, but at the page 28 they don’t exist in the file.

Thus the example should be something like:

$ pytest -v --tb=no -k “(ids or dict) and not TestEqual”
============================ test session starts =============================
collected 19 items / 15 deselected / 4 selected
test_card.py::test_equality_with_diff_ids PASSED [ 25%]
test_card.py::test_from_dict PASSED [ 50%]
test_card.py::test_to_dict PASSED [ 75%]
test_structure.py::test_to_dict PASSED [100%]
====================== 4 passed, 15 deselected in 0.18s ======================