py$(PYV): remove tox env folder $(@D)/.tox/py$(PYV)
py$(PYV): commands[0]> python -m zope.testrunner --test-path=$(@D)
Running zope.testrunner.layer.UnitTests tests:
  Set up zope.testrunner.layer.UnitTests.
  Ran 2 tests with 0 failures, 0 errors and 0 skipped.
Tearing down left over layers:
  Tear down zope.testrunner.layer.UnitTests.
  py$(PYV): OK
  congratulations :)