py$(PYV): remove tox env folder $(@D)/.tox/py$(PYV)
py$(PYV): commands[0]> python -m unittest discover -v
test_DeprecatedWarning_not_raised (tests.test_deprecation.Test_deprecated) ... ok
test_args_set_on_base_class (tests.test_deprecation.Test_deprecated) ... ok
test_docstring (tests.test_deprecation.Test_deprecated) ... ok
test_multiline_docstring (tests.test_deprecation.Test_deprecated) ... ok
test_multiline_docstring_top (tests.test_deprecation.Test_deprecated) ... ok
test_multiline_fallback (tests.test_deprecation.Test_deprecated) ... ok
test_removing_without_deprecating (tests.test_deprecation.Test_deprecated) ... ok
test_warning_raised (tests.test_deprecation.Test_deprecated) ... ok
test_DeprecatedWarning_doesnt_fail (tests.test_deprecation.Test_fail_if_not_removed) ... ok
test_UnsupportedWarning_causes_failure (tests.test_deprecation.Test_fail_if_not_removed) ... ok
test_literal_DeprecatedWarning (tests.test_deprecation.Test_fail_if_not_removed) ... ok
test_literal_UnsupportedWarning (tests.test_deprecation.Test_fail_if_not_removed) ... expected failure

----------------------------------------------------------------------
Ran 12 tests

OK (expected failures=1)
  py$(PYV): OK
  congratulations :)