hypothesis-less environment test skip not working

[apteryks]

Hi,

When hypothesis is not available, the @settings decorators throws an error in the test before the test gets to be skipped, e.g.:

======================================================================
ERROR: test_mccabe (unittest.loader._FailedTest)
----------------------------------------------------------------------
ImportError: Failed to import test module: test_mccabe
Traceback (most recent call last):
  File "/gnu/store/lp8ch4rn10whzyajnzv216d2a2v163c7-python-3.10.7/lib/python3.10/unittest/loader.py", line 436, in _find_test_path
    module = self._get_module_from_name(name)
  File "/gnu/store/lp8ch4rn10whzyajnzv216d2a2v163c7-python-3.10.7/lib/python3.10/unittest/loader.py", line 377, in _get_module_from_name
    __import__(name)
  File "/tmp/guix-build-python-mccabe-0.7.0.drv-0/mccabe-0.7.0/test_mccabe.py", line 244, in <module>
    @settings(
NameError: name 'settings' is not defined

[Romain-Geissler-1A]

It seems maintainers of this libraries have had this remark couple of times already. For example in #92. For me the test should really be made ok if the dependency is missing, or the error less misleading in case it isn't there, as it seems this issue hits users from time to tome.