It currently fails with a TypeError, and was not updated since 2013 -
therefore it can be assumed that it is not important to support it.
```
____________________ ERROR collecting test_nested_marks.py _____________________
…/Vcs/pluggy/src/pluggy/hooks.py:286: in __call__
return self._hookexec(self, self.get_hookimpls(), kwargs)
…/Vcs/pluggy/src/pluggy/manager.py:93: in _hookexec
return self._inner_hookexec(hook, methods, kwargs)
…/Vcs/pluggy/src/pluggy/manager.py:337: in traced_hookexec
return outcome.get_result()
…/Vcs/pluggy/src/pluggy/manager.py:335: in <lambda>
outcome = _Result.from_call(lambda: oldcall(hook, hook_impls, kwargs))
…/Vcs/pluggy/src/pluggy/manager.py:87: in <lambda>
firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
…/Vcs/pytest/src/_pytest/python.py:235: in pytest_pycollect_makeitem
res = list(collector._genfunctions(name, obj))
…/Vcs/pytest/src/_pytest/python.py:404: in _genfunctions
self.ihook.pytest_generate_tests.call_extra(methods, dict(metafunc=metafunc))
…/Vcs/pluggy/src/pluggy/hooks.py:324: in call_extra
return self(**kwargs)
…/Vcs/pluggy/src/pluggy/hooks.py:286: in __call__
return self._hookexec(self, self.get_hookimpls(), kwargs)
…/Vcs/pluggy/src/pluggy/manager.py:93: in _hookexec
return self._inner_hookexec(hook, methods, kwargs)
…/Vcs/pluggy/src/pluggy/manager.py:337: in traced_hookexec
return outcome.get_result()
…/Vcs/pluggy/src/pluggy/manager.py:335: in <lambda>
outcome = _Result.from_call(lambda: oldcall(hook, hook_impls, kwargs))
…/Vcs/pluggy/src/pluggy/manager.py:87: in <lambda>
firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
…/Vcs/pytest/src/_pytest/python.py:130: in pytest_generate_tests
metafunc.parametrize(*marker.args, **marker.kwargs)
…/Vcs/pytest/src/_pytest/python.py:965: in parametrize
function_definition=self.definition,
…/Vcs/pytest/src/_pytest/mark/structures.py:111: in _for_parametrize
if len(param.values) != len(argnames):
E TypeError: object of type 'MarkDecorator' has no len()
!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!
```
This is a useful utility to abstract the caching property idiom.
It is in compat.py since eventually it will be replaced by
functools.cached_property.
Fixes#6131.
It is a little too obscure IMO, but the reason I want to drop it is that
type checking has no hope of understanding such dynamic constructs.
The warning argument wasn't used.
This fixes/removes the previous hack of re-trying with minimum width,
which fails short when it splits strings.
This inherits from `pprint.PrettyPrinter` to override `_format` in a
minimal way to always dispatch, regardless of the given width.
Code ref: 5c0c325453/Lib/pprint.py (L170-L178)
Harden one test where it is tested.
All tests testing this:
testing/acceptance_test.py:184(TestGeneralUsage::test_not_collectable_arguments)
testing/acceptance_test.py:373(TestGeneralUsage::test_direct_addressing_notfound)
testing/acceptance_test.py:403(TestGeneralUsage::test_issue134_report_error_when_collecting_member[test_fun.py::test_a])
testing/acceptance_test.py:420(TestGeneralUsage::test_report_all_failed_collections_initargs)
testing/test_config.py:1309(test_config_blocked_default_plugins[python])
(via https://github.com/blueyed/pytest/pull/88)
Works around:
_____ ERROR collecting testing/io/test_saferepr.py _____
src/_pytest/python.py:502: in _importtestmodule
mod = self.fspath.pyimport(ensuresyspath=importmode)
.venv38/lib/python3.8/site-packages/py/_path/local.py:701: in pyimport
__import__(modname)
<frozen importlib._bootstrap>:991: in _find_and_load
???
<frozen importlib._bootstrap>:975: in _find_and_load_unlocked
???
<frozen importlib._bootstrap>:671: in _load_unlocked
???
src/_pytest/assertion/rewrite.py:136: in exec_module
source_stat, co = _rewrite_test(fn, self.config)
src/_pytest/assertion/rewrite.py:288: in _rewrite_test
co = compile(tree, fn, "exec", dont_inherit=True)
E File "…/Vcs/pytest/testing/io/test_saferepr.py", line 45
E None()
E ^
E SyntaxError: 'NoneType' object is not callable; perhaps you missed a comma?
This causes INTERNALERRORs with pytest-django, which uses
`pytest.fail` (derived from `BaseException`) to prevent DB access, when
pytest then tries to e.g. display the `repr()` for a Django `QuerySet`
etc.
Ref: https://github.com/pytest-dev/pytest-django/pull/776
