This comes via hypothesis:
```
% COLUMNS=80 p testing/python/metafunc.py::TestMetafunc::test_idval_hypothesis -vv --tb=short
============================= test session starts ==============================
platform linux -- Python 3.7.4, pytest-3.1.4.dev721+g3367bf03b.d20191112, py-1.8.1.dev11+g34f716fe, pluggy-0.13.1.dev8+ga5130ac.d20191103 -- …/Vcs/pytest/.venv/bin/python
cachedir: .pytest_cache
hypothesis profile 'default' -> database=DirectoryBasedExampleDatabase('…/Vcs/pytest/.hypothesis/examples')
rootdir: …/Vcs/pytest, inifile: tox.ini
plugins: forked-1.1.3, hypothesis-4.44.1, cov-2.8.1, coverage-pytest-plugin-0.1, enhancements-0.0.5.dev1-gf361636-dirty, xdist-1.30.0
collected 1 item
testing/python/metafunc.py::TestMetafunc::test_idval_hypothesis FAILED [100%]
=================================== FAILURES ===================================
______________________ TestMetafunc.test_idval_hypothesis ______________________
.venv/lib/python3.7/site-packages/hypothesis/core.py:588: in evaluate_test_data
result = self.execute(data)
.venv/lib/python3.7/site-packages/hypothesis/core.py:553: in execute
result = self.test_runner(data, run)
.venv/lib/python3.7/site-packages/hypothesis/executors.py:56: in default_new_style_executor
return function(data)
.venv/lib/python3.7/site-packages/hypothesis/core.py:536: in run
args, kwargs = data.draw(self.search_strategy)
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:857: in draw
return strategy.do_draw(self)
.venv/lib/python3.7/site-packages/hypothesis/core.py:223: in do_draw
return self.mapped_strategy.do_draw(data)
.venv/lib/python3.7/site-packages/hypothesis/searchstrategy/collections.py:60: in do_draw
return tuple(data.draw(e) for e in self.element_strategies)
.venv/lib/python3.7/site-packages/hypothesis/searchstrategy/collections.py:60: in <genexpr>
return tuple(data.draw(e) for e in self.element_strategies)
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:852: in draw
return strategy.do_draw(self)
.venv/lib/python3.7/site-packages/hypothesis/searchstrategy/strategies.py:570: in do_draw
result = self.pack(data.draw(self.mapped_strategy))
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:852: in draw
return strategy.do_draw(self)
.venv/lib/python3.7/site-packages/hypothesis/searchstrategy/lazy.py:156: in do_draw
return data.draw(self.wrapped_strategy)
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:852: in draw
return strategy.do_draw(self)
.venv/lib/python3.7/site-packages/hypothesis/searchstrategy/strategies.py:570: in do_draw
result = self.pack(data.draw(self.mapped_strategy))
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:852: in draw
return strategy.do_draw(self)
.venv/lib/python3.7/site-packages/hypothesis/searchstrategy/collections.py:60: in do_draw
return tuple(data.draw(e) for e in self.element_strategies)
.venv/lib/python3.7/site-packages/hypothesis/searchstrategy/collections.py:60: in <genexpr>
return tuple(data.draw(e) for e in self.element_strategies)
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:852: in draw
return strategy.do_draw(self)
.venv/lib/python3.7/site-packages/hypothesis/searchstrategy/strategies.py:508: in do_draw
return data.draw(self.element_strategies[i], label=self.branch_labels[i])
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:852: in draw
return strategy.do_draw(self)
.venv/lib/python3.7/site-packages/hypothesis/searchstrategy/lazy.py:156: in do_draw
return data.draw(self.wrapped_strategy)
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:852: in draw
return strategy.do_draw(self)
.venv/lib/python3.7/site-packages/hypothesis/searchstrategy/strategies.py:570: in do_draw
result = self.pack(data.draw(self.mapped_strategy))
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:852: in draw
return strategy.do_draw(self)
.venv/lib/python3.7/site-packages/hypothesis/searchstrategy/lazy.py:156: in do_draw
return data.draw(self.wrapped_strategy)
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:852: in draw
return strategy.do_draw(self)
.venv/lib/python3.7/site-packages/hypothesis/searchstrategy/collections.py:120: in do_draw
result.append(data.draw(self.element_strategy))
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:852: in draw
return strategy.do_draw(self)
.venv/lib/python3.7/site-packages/hypothesis/searchstrategy/numbers.py:62: in do_draw
return d.integer_range(data, self.start, self.end)
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/utils.py:105: in integer_range
probe = data.draw_bits(bits)
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:974: in draw_bits
self.__check_capacity(n_bytes)
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:1019: in __check_capacity
self.mark_overrun()
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:1036: in mark_overrun
self.conclude_test(Status.OVERRUN)
.venv/lib/python3.7/site-packages/hypothesis/internal/conjecture/data.py:1027: in conclude_test
raise StopTest(self.testcounter)
E hypothesis.errors.StopTest: 0
During handling of the above exception, another exception occurred:
testing/python/metafunc.py:195: in test_idval_hypothesis
@hypothesis.settings(
.venv/lib/python3.7/site-packages/nose/__init__.py:1: in <module>
from nose.core import collector, main, run, run_exit, runmodule
.venv/lib/python3.7/site-packages/nose/core.py:12: in <module>
from nose.loader import defaultTestLoader
.venv/lib/python3.7/site-packages/nose/loader.py:21: in <module>
from nose.importer import Importer, add_path, remove_path
.venv/lib/python3.7/site-packages/nose/importer.py:12: in <module>
from imp import find_module, load_module, acquire_model1, release_model1
/usr/lib/python3.7/imp.py:33: in <module>
DeprecationWarning, stacklevel=2)
E DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
---------------------------------- Hypothesis ----------------------------------
You can add @seed(198901559535749756451579900660745168041) to this test or run pytest with --hypothesis-seed=198901559535749756451579900660745168041 to reproduce this failure.
=============================== warnings summary ===============================
testing/python/metafunc.py::TestMetafunc::test_idval_hypothesis
…/Vcs/pytest/.venv/lib/python3.7/site-packages/unittest2/compatibility.py:143: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working
class ChainMap(collections.MutableMapping):
-- Docs: https://docs.pytest.org/en/latest/warnings.html
=========================== short test summary info ============================
FAILED testing/python/metafunc.py::TestMetafunc::test_idval_hypothesis - Depr...
```
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 is already covered by attrs.
Also, the custom implementation returns False when the types don't
match, but it's better to return `NotImplemented`. attrs does this.
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
Daniel Hahler
Ran Benita
Daniel Hahler
Bruno Oliveira
Gregory Lee
NNRepos