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This PR contains the following updates:
^6.2.2->^7.0.0Release Notes
pytest-dev/pytest (pytest)
v7.4.4: pytest 7.4.4 (2023-12-31)Compare Source
Bug Fixes
sys.stderr{.interpreted-text role="data"} andsys.__stderr__{.interpreted-text role="data"} might already be closed whenfaulthandler{.interpreted-text role="ref"} is tearing down.__iter__methods. Now they are treated un-iterable instead.Improved Documentation
--junitxmlwith--junit-xmland--collectonlywith--collect-only.v7.4.3: pytest 7.4.3 (2023-10-24)Compare Source
Bug Fixes
#10447: Markers are now considered in the reverse mro order to ensure base class markers are considered first -- this resolves a regression.
#11239: Fixed
:=in asserts impacting unrelated test cases.#11439: Handled an edge case where :data:
sys.stderrmight already be closed when :ref:faulthandleris tearing down.v7.4.2: pytest 7.4.2 (2023-09-07)Compare Source
Bug Fixes
#11237: Fix doctest collection of
functools.cached_propertyobjects.#11306: Fixed bug using
--importmode=importlibwhich would cause package__init__.pyfiles to be imported more than once in some cases.#11367: Fixed bug where
user_propertieswhere not being saved in the JUnit XML file if a fixture failed during teardown.#11394: Fixed crash when parsing long command line arguments that might be interpreted as files.
Improved Documentation
v7.4.1: pytest 7.4.1 (2023-09-02)Compare Source
Bug Fixes
#10337: Fixed bug where fake intermediate modules generated by
--import-mode=importlibwould not include thechild modules as attributes of the parent modules.
#10702: Fixed error assertion handling in
pytest.approxwhenNoneis an expected or received value when comparing dictionaries.#10811: Fixed issue when using
--import-mode=importlibtogether with--doctest-modulesthat caused modulesto be imported more than once, causing problems with modules that have import side effects.
v7.4.0Compare Source
pytest 7.4.0 (2023-06-23)
Features
ExceptionInfo.from_exception() <pytest.ExceptionInfo.from_exception>{.interpreted-text role="func"}, a simpler way to create an~pytest.ExceptionInfo{.interpreted-text role="class"} from an exception.This can replace
ExceptionInfo.from_exc_info() <pytest.ExceptionInfo.from_exc_info()>{.interpreted-text role="func"} for most uses.Improvements
#10872: Update test log report annotation to named tuple and fixed inconsistency in docs for
pytest_report_teststatus{.interpreted-text role="hook"} hook.#10907: When an exception traceback to be displayed is completely filtered out (by mechanisms such as
__tracebackhide__, internal frames, and similar), now only the exception string and the following message are shown:"All traceback entries are hidden. Pass [--full-trace]{.title-ref} to see hidden and internal frames.".
Previously, the last frame of the traceback was shown, even though it was hidden.
#10940: Improved verbose output (
-vv) ofskipandxfailreasons by performing text wrapping while leaving a clear margin for progress output.Added
TerminalReporter.wrap_write()as a helper for that.#10991: Added handling of
%fdirective to print microseconds in log format options, such aslog-date-format.#11005: Added the underlying exception to the cache provider's path creation and write warning messages.
#11013: Added warning when
testpaths{.interpreted-text role="confval"} is set, but paths are not found by glob. In this case, pytest will fall back to searching from the current directory.#11043: When [--confcutdir]{.title-ref} is not specified, and there is no config file present, the conftest cutoff directory ([--confcutdir]{.title-ref}) is now set to the
rootdir <rootdir>{.interpreted-text role="ref"}.Previously in such cases, [conftest.py]{.title-ref} files would be probed all the way to the root directory of the filesystem.
If you are badly affected by this change, consider adding an empty config file to your desired cutoff directory, or explicitly set [--confcutdir]{.title-ref}.
#11081: The
norecursedirs{.interpreted-text role="confval"} check is now performed in apytest_ignore_collect{.interpreted-text role="hook"} implementation, so plugins can affect it.If after updating to this version you see that your [norecursedirs]{.title-ref} setting is not being respected,
it means that a conftest or a plugin you use has a bad [pytest_ignore_collect]{.title-ref} implementation.
Most likely, your hook returns [False]{.title-ref} for paths it does not want to ignore,
which ends the processing and doesn't allow other plugins, including pytest itself, to ignore the path.
The fix is to return [None]{.title-ref} instead of [False]{.title-ref} for paths your hook doesn't want to ignore.
#8711:
caplog.set_level() <pytest.LogCaptureFixture.set_level>{.interpreted-text role="func"} andcaplog.at_level() <pytest.LogCaptureFixture.at_level>{.interpreted-text role="func"}will temporarily enable the requested
leveliflevelwas disabled globally vialogging.disable(LEVEL).Bug Fixes
--tb=linemode wherepytest.fail(pytrace=False)tests reportNone.--last-failedwhole-file skipping functionality ("skipped N files") fornon-python test files <non-python tests>{.interpreted-text role="ref"}.testpaths{.interpreted-text role="confval"} to be considered for loading initial conftests,even when it was not utilized (e.g. when explicit paths were given on the command line).
Now the
testpathsare only considered when they are in use.__tracebackhide__ = Truestill being shown for chained exceptions (parts after "... the above exception ..." message).--debug.Improved Documentation
caplog.set_level() <pytest.LogCaptureFixture.set_level>{.interpreted-text role="func"}.Trivial/Internal Changes
-cto now include--config-fileto make it clear that this flag applies to the usage of a custom config file.v7.3.2Compare Source
pytest 7.3.2 (2023-06-10)
Bug Fixes
OSError: [Errno 36] File name too longon some systems.testpaths{.interpreted-text role="confval"} is now honored to load rootconftests.--last-failed's "(skipped N files)" functionality for files inside of packages (directories with [__init__.py]{.title-ref} files).v7.3.1Compare Source
pytest 7.3.1 (2023-04-14)
Improvements
RuntimeError: TestResult has no addDuration methodwhen runningunittesttests.shutil.rmtree(onerror=...)deprecation warning when usingtmp_path{.interpreted-text role="fixture"}.Bug Fixes
tmp_path{.interpreted-text role="fixture"} and the newtmp_path_retention_policy{.interpreted-text role="confval"} option.INTERNALERROR IndexError: list index out of rangewhich happens when displaying an exception where all entries are hidden.This reverts the change "Correctly handle
__tracebackhide__for chained exceptions." introduced in version 7.3.0.v7.3.0Compare Source
pytest 7.3.0 (2023-04-08)
Features
@classmethodcan now be discovered as tests, following the same rules as normal methods. This fills the gap that static methods were discoverable as tests but not class methods.console_output_style{.interpreted-text role="confval"} now supportsprogress-even-when-capture-noto force the use of the progress output even when capture is disabled. This is useful in large test suites where capture may have significant performance impact.--log-disableCLI option added to disable individual loggers.tmp_path_retention_count{.interpreted-text role="confval"} andtmp_path_retention_policy{.interpreted-text role="confval"} configuration options to control how directories created by thetmp_path{.interpreted-text role="fixture"} fixture are kept.Improvements
ExceptionGroupof them instead of discarding all but the last.-parguments to include spaces (eg:-p no:logginginstead of-pno:logging). Mostly useful in theaddoptssection of the configurationfile.
startandstoptimestamps toTestReportobjects.rootdir,config fileandtestpathsso each has its own line.the hidden text. The line number shown has also been fixed.
Bug Fixes
tmp_path{.interpreted-text role="fixture"} fixture always raisingOSError{.interpreted-text role="class"} onemscriptenplatform due to missingos.getuid{.interpreted-text role="func"}.__tracebackhide__for chained exceptions.Improved Documentation
goodpractices{.interpreted-text role="ref"}:pip install -e .requires aversionentry inpyproject.tomlto run successfully.Trivial/Internal Changes
v7.2.2Compare Source
pytest 7.2.2 (2023-03-03)
Bug Fixes
pytest.approx{.interpreted-text role="func"} handling of dictionaries containing one or more values of [0.0]{.title-ref}.teardownwould be called as part ofnoseteardown stage.--fixturesand--helpare passed at the same time.pytest.raises{.interpreted-text role="func"} to return a 'ContextManager' so that type-checkers could narrowpytest.raises(...) if ... else nullcontext()down to 'ContextManager' rather than 'object'.Improved Documentation
about not collecting tests and not executing the rest of the module.
v7.2.1Compare Source
pytest 7.2.1 (2023-01-13)
Bug Fixes
rootdir <rootdir>{.interpreted-text role="ref"} on Windows.v7.2.0Compare Source
pytest 7.2.0 (2022-10-23)
Deprecations
#10012: Update
pytest.PytestUnhandledCoroutineWarning{.interpreted-text role="class"} to a deprecation; it will raise an error in pytest 8.#10396: pytest no longer depends on the
pylibrary.pytestprovides a vendored copy ofpy.errorandpy.pathmodules but will use thepylibrary if it is installed. If you need otherpy.*modules, continue to install the deprecatedpylibrary separately, otherwise it can usually be removed as a dependency.#4562: Deprecate configuring hook specs/impls using attributes/marks.
Instead use :py
pytest.hookimpl{.interpreted-text role="func"} and :pypytest.hookspec{.interpreted-text role="func"}.For more details, see the
docs <legacy-path-hooks-deprecated>{.interpreted-text role="ref"}.#9886: The functionality for running tests written for
nosehas been officially deprecated.This includes:
setupandteardownfunctions and methods: this might catch users by surprise, assetup()andteardown()are not pytest idioms, but part of thenosesupport.For more details, consult the
deprecation docs <nose-deprecation>{.interpreted-text role="ref"}.Features
testpaths.Improvements
#10218:
@pytest.mark.parametrize()(and similar functions) now accepts anySequence[str]for the argument names,instead of just
list[str]andtuple[str, ...].(Note that
str, which is itself aSequence[str], is still treated as acomma-delimited name list, as before).
#10381: The
--no-showlocalsflag has been added. This can be passed directly to tests to override--showlocalsdeclared throughaddopts.#3426: Assertion failures with strings in NFC and NFD forms that normalize to the same string now have a dedicated error message detailing the issue, and their utf-8 representation is expresed instead.
#7337: A warning is now emitted if a test function returns something other than [None]{.title-ref}. This prevents a common mistake among beginners that expect that returning a [bool]{.title-ref} (for example [return foo(a, b) == result]{.title-ref}) would cause a test to pass or fail, instead of using [assert]{.title-ref}.
#8508: Introduce multiline display for warning matching via :py
pytest.warns{.interpreted-text role="func"} andenhance match comparison for :py
_pytest._code.ExceptionInfo.match{.interpreted-text role="func"} as returned by :pypytest.raises{.interpreted-text role="func"}.#8646: Improve :py
pytest.raises{.interpreted-text role="func"}. Previously passing an empty tuple would give a confusingerror. We now raise immediately with a more helpful message.
#9741: On Python 3.11, use the standard library's
tomllib{.interpreted-text role="mod"} to parse TOML.tomli{.interpreted-text role="mod"}` is no longer a dependency on Python 3.11.#9742: Display assertion message without escaped newline characters with
-vv.#9823: Improved error message that is shown when no collector is found for a given file.
#9873: Some coloring has been added to the short test summary.
#9883: Normalize the help description of all command-line options.
#9920: Display full crash messages in
short test summary info, when runng in a CI environment.#9987: Added support for hidden configuration file by allowing
.pytest.inias an alternative topytest.ini.Bug Fixes
#10150:
sys.stdin{.interpreted-text role="data"} now contains all expected methods of a file-like object when capture is enabled.#10382: Do not break into pdb when
raise unittest.SkipTest()appears top-level in a file.#7792: Marks are now inherited according to the full MRO in test classes. Previously, if a test class inherited from two or more classes, only marks from the first super-class would apply.
When inheriting marks from super-classes, marks from the sub-classes are now ordered before marks from the super-classes, in MRO order. Previously it was the reverse.
When inheriting marks from super-classes, the [pytestmark]{.title-ref} attribute of the sub-class now only contains the marks directly applied to it. Previously, it also contained marks from its super-classes. Please note that this attribute should not normally be accessed directly; use
pytest.Node.iter_markers{.interpreted-text role="func"} instead.#9159: Showing inner exceptions by forcing native display in
ExceptionGroupseven when using display options other than--tb=native. A temporary step before full implementation of pytest-native display for inner exceptions inExceptionGroups.#9877: Ensure
caplog.get_records(when)returns current/correct data after invokingcaplog.clear().Improved Documentation
pyproject.tomlinstead ofsetup.py.pytest.warns{.interpreted-text role="func"} affectsDeprecationWarning{.interpreted-text role="class"}.Trivial/Internal Changes
~pytest.PytestReturnNotNoneWarning{.interpreted-text role="class"} is now a subclass of~pytest.PytestRemovedIn8Warning{.interpreted-text role="class"}: the plan is to make returning non-Nonefrom tests an error in the future._pytest.doctest.DoctestItemexportpytest.DoctestItemfortype check and runtime purposes. Made [_pytest.doctest]{.title-ref} use internal APIs
to avoid circular imports.
_pytest.compatre-exportimportlib_metadatain the eyes of type checkers.EncodingWarning) incacheprovidertorn down.
Add an additional sentence to the docstring explaining when it's not a good
idea to call getfixturevalue.
v7.1.3Compare Source
pytest 7.1.3 (2022-08-31)
Bug Fixes
--pdb,TestCase.tearDownis no longer called for tests when the class has been skipped viaunittest.skiporpytest.mark.skip..pyfiles created bypyproject.toml-based editable builds introduced in pip 21.3.--import-modeflag.FixtureRequest.paramasAnyas a stop gap measure until8073{.interpreted-text role="issue"} is fixed.rewrite.pythat seems to work fine, but was incorrect and fails in some systems.pytest.approx{.interpreted-text role="func"} when used to compare tuples.Improved Documentation
tmpdir{.interpreted-text role="fixture"} fixture is discouraged in favour oftmp_path{.interpreted-text role="fixture"}.Trivial/Internal Changes
v7.1.2Compare Source
pytest 7.1.2 (2022-04-23)
Bug Fixes
numpyimport insidepytest.approx{.interpreted-text role="func"} was removed.dataclasseswithInitVar.stacklevelfor theNODE_CTOR_FSPATH_ARGdeprecation to point to theuser's code, not pytest.
an internal error while attempting to get the current user's username.
v7.1.1Compare Source
pytest 7.1.1 (2022-03-17)
Bug Fixes
v7.1.0Compare Source
pytest 7.1.0 (2022-03-13)
Breaking Changes
#8838: As per our policy, the following features have been deprecated in the 6.X series and are now
removed:
pytest._fillfuncargsfunction.pytest_warning_capturedhook - usepytest_warning_recordedinstead.-k -foobarsyntax - use-k 'not foobar'instead.-k foobar:syntax.pytest.collectmodule - import frompytestdirectly.For more information consult
Deprecations and Removals in the docs.
#9437: Dropped support for Python 3.6, which reached end-of-life at 2021-12-23.
Improvements
#5192: Fixed test output for some data types where
-vwould show less information.Also, when showing diffs for sequences,
-qwould produce full diffs instead of the expected diff.#9362: pytest now avoids specialized assert formatting when it is detected that the default
__eq__is overridden inattrsordataclasses.#9536: When
-vvis given on command line, show skipping and xfail reasons in full instead of truncating them to fit the terminal width.#9644: More information about the location of resources that led Python to raise
ResourceWarning{.interpreted-text role="class"} can nowbe obtained by enabling
tracemalloc{.interpreted-text role="mod"}.See
resource-warnings{.interpreted-text role="ref"} for more information.#9678: More types are now accepted in the
idsargument to@pytest.mark.parametrize.Previously only [str]{.title-ref}, [float]{.title-ref}, [int]{.title-ref} and [bool]{.title-ref} were accepted;
now [bytes]{.title-ref}, [complex]{.title-ref}, [re.Pattern]{.title-ref}, [Enum]{.title-ref} and anything with a [__name__]{.title-ref} are also accepted.
#9692:
pytest.approx{.interpreted-text role="func"} now raises aTypeError{.interpreted-text role="class"} when given an unordered sequence (such asset{.interpreted-text role="class"}).Note that this implies that custom classes which only implement
__iter__and__len__are no longer supported as they don't guarantee order.Bug Fixes
#8242: The deprecation of raising
unittest.SkipTest{.interpreted-text role="class"} to skip collection oftests during the pytest collection phase is reverted - this is now a supported
feature again.
#9493: Symbolic link components are no longer resolved in conftest paths.
This means that if a conftest appears twice in collection tree, using symlinks, it will be executed twice.
For example, given
running
pytest testsnow imports the conftest twice, once astests/real/conftest.pyand once astests/link/conftest.py.This is a fix to match a similar change made to test collection itself in pytest 6.0 (see
6523{.interpreted-text role="pull"} for details).#9626: Fixed count of selected tests on terminal collection summary when there were errors or skipped modules.
If there were errors or skipped modules on collection, pytest would mistakenly subtract those from the selected count.
#9645: Fixed regression where
--import-mode=importlibused together withPYTHONPATH{.interpreted-text role="envvar"} orpythonpath{.interpreted-text role="confval"} would cause import errors in test suites.#9708:
pytester{.interpreted-text role="fixture"} now requests amonkeypatch{.interpreted-text role="fixture"} fixture instead of creating one internally. This solves some issues with tests that involve pytest environment variables.#9730: Malformed
pyproject.tomlfiles now produce a clearer error message.v7.0.1Compare Source
pytest 7.0.1 (2022-02-11)
Bug Fixes
importlib.readersin Python 3.9.Fixes a crash during a failed teardown in unittest TestCases with non-default [__init__]{.title-ref}.
Regressed in pytest 7.0.0.
pythonpathplugin was renamed topython_path. This avoids a conflict with thepytest-pythonpathplugin.::in the parametrize portion.~pytest.PytestWarning{.interpreted-text role="class"} about diamond inheritance involving~pytest.Item{.interpreted-text role="class"} and~pytest.Collector{.interpreted-text role="class"} so it can be filtered usingstandard warning filters <warnings>{.interpreted-text role="ref"}.v7.0.0Compare Source
pytest 7.0.0 (2022-02-03)
(Please see the full set of changes for this release also in the 7.0.0rc1 notes below)
Deprecations
#9488: If custom subclasses of nodes like
pytest.Item{.interpreted-text role="class"} override the__init__method, they should take**kwargs. Seeuncooperative-constructors-deprecated{.interpreted-text role="ref"} for details.Note that a deprection warning is only emitted when there is a conflict in the
arguments pytest expected to pass. This deprecation was already part of pytest
7.0.0rc1 but wasn't documented.
Bug Fixes
pytest.Config.inifile{.interpreted-text role="attr"} is available during thepytest_cmdline_main <_pytest.hookspec.pytest_cmdline_main>{.interpreted-text role="func"} hook (regression during7.0.0rc1).Improved Documentation
that configuration file is located in the root of the repository.
Trivial/Internal Changes
pytest 7.0.0rc1 (2021-12-06)
Breaking Changes
#7259: The
Node.reportinfo() <non-python tests>{.interpreted-text role="ref"} function first return value type has been expanded from [py.path.local | str]{.title-ref} to [os.PathLike[str] | str]{.title-ref}.Most plugins which refer to [reportinfo()]{.title-ref} only define it as part of a custom
pytest.Item{.interpreted-text role="class"} implementation.Since [py.path.local]{.title-ref} is a [os.PathLike[str]]{.title-ref}, these plugins are unaffacted.
Plugins and users which call [reportinfo()]{.title-ref}, use the first return value and interact with it as a [py.path.local]{.title-ref}, would need to adjust by calling [py.path.local(fspath)]{.title-ref}.
Although preferably, avoid the legacy [py.path.local]{.title-ref} and use [pathlib.Path]{.title-ref}, or use [item.location]{.title-ref} or [item.path]{.title-ref}, instead.
Note: pytest was not able to provide a deprecation period for this change.
#8246:
--versionnow writes version information tostdoutrather thanstderr.#8733: Drop a workaround for pyreadline that made it work with
--pdb.The workaround was introduced in #1281 in 2015, however since then
pyreadline seems to have gone unmaintained, is generating
warnings, and will stop working on Python 3.10.
#9061: Using
pytest.approx{.interpreted-text role="func"} in a boolean context now raises an error hinting at the proper usage.It is apparently common for users to mistakenly use
pytest.approxlike this:While the correct usage is:
The new error message helps catch those mistakes.
#9277: The
pytest.Instancecollector type has been removed.Importing
pytest.Instanceor_pytest.python.Instancereturns a dummy type and emits a deprecation warning.See
instance-collector-deprecation{.interpreted-text role="ref"} for details.#9308: PytestRemovedIn7Warning deprecation warnings are now errors by default.
Following our plan to remove deprecated features with as little disruption as
possible, all warnings of type
PytestRemovedIn7Warningnow generate errorsinstead of warning messages by default.
The affected features will be effectively removed in pytest 7.1, so please consult the
deprecations{.interpreted-text role="ref"} section in the docs for directions on how to update existing code.In the pytest
7.0.Xseries, it is possible to change the errors back into warnings as astopgap measure by adding this to your
pytest.inifile:But this will stop working when pytest
7.1is released.If you have concerns about the removal of a specific feature, please add a
comment to
9308{.interpreted-text role="issue"}.Deprecations
#7259:
py.path.localarguments for hooks have been deprecated. Seethe deprecation note <legacy-path-hooks-deprecated>{.interpreted-text role="ref"} for full details.py.path.localarguments to Node constructors have been deprecated. Seethe deprecation note <node-ctor-fspath-deprecation>{.interpreted-text role="ref"} for full details.::: {.note}
::: {.admonition-title}
Note
:::
The name of the
~_pytest.nodes.Node{.interpreted-text role="class"} arguments and attributes (thenew attribute being
path) is the opposite of the situation for hooks(the old argument being
path).This is an unfortunate artifact due to historical reasons, which should be
resolved in future versions as we slowly get rid of the
py{.interpreted-text role="pypi"}dependency (see
9283{.interpreted-text role="issue"} for a longer discussion).:::
#7469: Directly constructing the following classes is now deprecated:
_pytest.mark.structures.Mark_pytest.mark.structures.MarkDecorator_pytest.mark.structures.MarkGenerator_pytest.python.Metafunc_pytest.runner.CallInfo_pytest._code.ExceptionInfo_pytest.config.argparsing.Parser_pytest.config.argparsing.OptionGroup_pytest.pytester.HookRecorderThese constructors have always been considered private, but now issue a deprecation warning, which may become a hard error in pytest 8.
#8242: Raising
unittest.SkipTest{.interpreted-text role="class"} to skip collection of tests during thepytest collection phase is deprecated. Use
pytest.skip{.interpreted-text role="func"} instead.Note: This deprecation only relates to using
unittest.SkipTest{.interpreted-text role="class"} during testcollection. You are probably not doing that. Ordinary usage of
unittest.SkipTest{.interpreted-text role="class"} /unittest.TestCase.skipTest{.interpreted-text role="meth"} /unittest.skip{.interpreted-text role="func"} in unittest test cases is fully supported.#8315: Several behaviors of
Parser.addoption <pytest.Parser.addoption>{.interpreted-text role="meth"} are nowscheduled for removal in pytest 8 (deprecated since pytest 2.4.0):
parser.addoption(..., help=".. %default ..")- use%(default)sinstead.parser.addoption(..., type="int/string/float/complex")- usetype=intetc. instead.#8447: Defining a custom pytest node type which is both an
pytest.Item <Item>{.interpreted-text role="class"} and apytest.Collector <Collector>{.interpreted-text role="class"} (e.g.pytest.File <File>{.interpreted-text role="class"}) now issues a warning.It was never sanely supported and triggers hard to debug errors.
See
the deprecation note <diamond-inheritance-deprecated>{.interpreted-text role="ref"} for full details.#8592:
pytest_cmdline_preparse{.interpreted-text role="hook"} has been officially deprecated. It will be removed in a future release. Usepytest_load_initial_conftests{.interpreted-text role="hook"} instead.See
the deprecation note <cmdline-preparse-deprecated>{.interpreted-text role="ref"} for full details.#8645:
pytest.warns(None) <pytest.warns>{.interpreted-text role="func"} is now deprecated because many people usedit to mean "this code does not emit warnings", but it actually had the effect of
checking that the code emits at least one warning of any type - like
pytest.warns()or
pytest.warns(Warning).#8948:
pytest.skip(msg=...) <pytest.skip>{.interpreted-text role="func"},pytest.fail(msg=...) <pytest.fail>{.interpreted-text role="func"} andpytest.exit(msg=...) <pytest.exit>{.interpreted-text role="func"}signatures now accept a
reasonargument instead ofmsg. Usingmsgstill works, but is deprecated and will be removed in a future release.This was changed for consistency with
pytest.mark.skip <pytest.mark.skip>{.interpreted-text role="func"} andpytest.mark.xfail <pytest.mark.xfail>{.interpreted-text role="func"} which both acceptreasonas an argument.#8174: The following changes have been made to types reachable through
pytest.ExceptionInfo.traceback{.interpreted-text role="attr"}:pathproperty of_pytest.code.CodereturnsPathinstead ofpy.path.local.pathproperty of_pytest.code.TracebackEntryreturnsPathinstead ofpy.path.local.There was no deprecation period for this change (sorry!).
Features
#5196: Tests are now ordered by definition order in more cases.
In a class hierarchy, tests from base classes are now consistently ordered before tests defined on their subclasses (reverse MRO order).
#7132: Added two environment variables
PYTEST_THEME{.interpreted-text role="envvar"} andPYTEST_THEME_MODE{.interpreted-text role="envvar"} to let the users customize the pygments theme used.#7259: Added
cache.mkdir() <pytest.Cache.mkdir>{.interpreted-text role="meth"}, which is similar to the existingcache.makedir() <pytest.Cache.makedir>{.interpreted-text role="meth"},but returns a
pathlib.Path{.interpreted-text role="class"} instead of a legacypy.path.local.Added a
pathstype toparser.addini() <pytest.Parser.addini>{.interpreted-text role="meth"},as in
parser.addini("mypaths", "my paths", type="paths"),which is similar to the existing
pathlist,but returns a list of
pathlib.Path{.interpreted-text role="class"} instead of legacypy.path.local.#7469: The types of objects used in pytest's API are now exported so they may be used in type annotations.
The newly-exported types are:
pytest.ConfigforConfig <pytest.Config>{.interpreted-text role="class"}.pytest.Markformarks <pytest.Mark>{.interpreted-text role="class"}.pytest.MarkDecoratorformark decorators <pytest.MarkDecorator>{.interpreted-text role="class"}.pytest.MarkGeneratorfor thepytest.mark <pytest.MarkGenerator>{.interpreted-text role="class"} singleton.pytest.Metafuncfor themetafunc <pytest.MarkGenerator>{.interpreted-text role="class"} argument to thepytest_generate_tests{.interpreted-text role="hook"} hook.pytest.CallInfofor theCallInfo <pytest.CallInfo>{.interpreted-text role="class"} type passed to various hooks.pytest.PytestPluginManagerforPytestPluginManager <pytest.PytestPluginManager>{.interpreted-text role="class"}.pytest.ExceptionInfofor theExceptionInfo <pytest.ExceptionInfo>{.interpreted-text role="class"} type returned frompytest.raises{.interpreted-text role="func"} and passed to various hooks.pytest.Parserfor theParser <pytest.Parser>{.interpreted-text role="class"} type passed to thepytest_addoption{.interpreted-text role="hook"} hook.pytest.OptionGroupfor theOptionGroup <pytest.OptionGroup>{.interpreted-text role="class"} type returned from theparser.addgroup <pytest.Parser.getgroup>{.interpreted-text role="func"} method.pytest.HookRecorderfor theHookRecorder <pytest.HookRecorder>{.interpreted-text role="class"} type returned from~pytest.Pytester{.interpreted-text role="class"}.pytest.RecordedHookCallfor theRecordedHookCall <pytest.HookRecorder>{.interpreted-text role="class"} type returned from~pytest.HookRecorder{.interpreted-text role="class"}.pytest.RunResultfor theRunResult <pytest.RunResult>{.interpreted-text role="class"} type returned from~pytest.Pytester{.interpreted-text role="class"}.pytest.LineMatcherfor theLineMatcher <pytest.RunResult>{.interpreted-text role="class"} type used in~pytest.RunResult{.interpreted-text role="class"} and others.pytest.TestReportfor theTestReport <pytest.TestReport>{.interpreted-text role="class"} type used in various hooks.pytest.CollectReportfor theCollectReport <pytest.CollectReport>{.interpreted-text role="class"} type used in various hooks.Constructing most of them directly is not supported; they are only meant for use in type annotations.
Doing so will emit a deprecation warning, and may become a hard-error in pytest 8.0.
Subclassing them is also not supported. This is not currently enforced at runtime, but is detected by type-checkers such as mypy.
#7856:
--import-mode=importlib <import-modes>{.interpreted-text role="ref"} now works with features thatdepend on modules being on :py
sys.modules{.interpreted-text role="data"}, such aspickle{.interpreted-text role="mod"} anddataclasses{.interpreted-text role="mod"}.#8144: The following hooks now receive an additional
pathlib.Pathargument, equivalent to an existingpy.path.localargument:pytest_ignore_collect{.interpreted-text role="hook"} - Thecollection_pathparameter (equivalent to existingpathparameter).pytest_collect_file{.interpreted-text role="hook"} - Thefile_pathparameter (equivalent to existingpathparameter).pytest_pycollect_makemodule{.interpreted-text role="hook"} - Themodule_pathparameter (equivalent to existingpathparameter).pytest_report_header{.interpreted-text role="hook"} - Thestart_pathparameter (equivalent to existingstartdirparameter).pytest_report_collectionfinish{.interpreted-text role="hook"} - Thestart_pathparameter (equivalent to existingstartdirparameter).::: {.note}
::: {.admonition-title}
Note
:::
The name of the
~_pytest.nodes.Node{.interpreted-text role="class"} arguments and attributes (thenew attribute being
path) is the opposite of the situation for hooks(the old argument being
path).This is an unfortunate artifact due to historical reasons, which should be
resolved in future versions as we slowly get rid of the
py{.interpreted-text role="pypi"}dependency (see
9283{.interpreted-text role="issue"} for a longer discussion).:::
#8251: Implement
Node.pathas apathlib.Path. Both the oldfspathand this new attribute gets set no matter whetherpathorfspath(deprecated) is passed to the constructor. It is a replacement for thefspathattribute (which represents the same path aspy.path.local). Whilefspathis not deprecated yetdue to the ongoing migration of methods like
~_pytest.Item.reportinfo{.interpreted-text role="meth"}, we expect to deprecate it in a future release.::: {.note}
::: {.admonition-title}
Note
:::
The name of the
~_pytest.nodes.Node{.interpreted-text role="class"} arguments and attributes (thenew attribute being
path) is the opposite of the situation for hooks(the old argument being
path).This is an unfortunate artifact due to historical reasons, which should be
resolved in future versions as we slowly get rid of the
py{.interpreted-text role="pypi"}dependency (see
9283{.interpreted-text role="issue"} for a longer discussion).:::
#8421:
pytest.approx{.interpreted-text role="func"} now works on~decimal.Decimal{.interpreted-text role="class"} within mappings/dicts and sequences/lists.#8606: pytest invocations with
--fixtures-per-testand--fixtureshave been enriched with:--verboseoption.#8761: New
version-tuple{.interpreted-text role="ref"} attribute, which makes it simpler for users to do something depending on the pytest version (such as declaring hooks which are introduced in later versions).#8789: Switch TOML parser from
tomltotomlifor TOML v1.0.0 support inpyproject.toml.#8920: Added
pytest.Stash{.interpreted-text role="class"}, a facility for plugins to store their data on~pytest.Config{.interpreted-text role="class"} and~_pytest.nodes.Node{.interpreted-text role="class"}s in a type-safe and conflict-free manner.See
plugin-stash{.interpreted-text role="ref"} for details.#8953:
RunResult <_pytest.pytester.RunResult>{.interpreted-text role="class"} methodassert_outcomes <_pytest.pytester.RunResult.assert_outcomes>{.interpreted-text role="meth"} now accepts awarningsargument to assert the total number of warnings captured.#8954:
--debugflag now accepts astr{.interpreted-text role="class"} file to route debug logs into, remains defaulted to [pytestdebug.log]{.title-ref}.#9023: Full diffs are now always shown for equality assertions of iterables when
#9113:
RunResult <_pytest.pytester.RunResult>{.interpreted-text role="class"} methodassert_outcomes <_pytest.pytester.RunResult.assert_outcomes>{.interpreted-text role="meth"} now accepts adeselectedargument to assert the total number of deselected tests.#9114: Added
pythonpath{.interpreted-text role="confval"} setting that adds listed paths tosys.path{.interpreted-text role="data"} for the duration of the test session. If you currently use the pytest-pythonpath or pytest-srcpaths plugins, you should be able to replace them with built-in [pythonpath]{.title-ref} setting.Improvements
#7480: A deprecation scheduled to be removed in a major version X (e.g. pytest 7, 8, 9, ...) now uses warning category [PytestRemovedInXWarning]{.title-ref},
a subclass of
~pytest.PytestDeprecationWarning{.interpreted-text role="class"},instead of
PytestDeprecationWarning{.interpreted-text role="class"} directly.See
backwards-compatibility{.interpreted-text role="ref"} for more details.#7864: Improved error messages when parsing warning filters.
Previously pytest would show an internal traceback, which besides being ugly sometimes would hide the cause
of the problem (for example an
ImportErrorwhile importing a specific warning type).#8335: Improved
pytest.approx{.interpreted-text role="func"} assertion messages for sequences of numbers.The assertion messages now dumps a table with the index and the error of each diff.
Example:
#8403: By default, pytest will truncate long strings in assert errors so they don't clutter the output too much,
currently at
240characters by default.However, in some cases the longer output helps, or is even crucial, to diagnose a failure. Using
-vwillnow increase the truncation threshold to
2400characters, and-vvor higher will disable truncation entirely.#8509: Fixed issue where
unittest.TestCase.setUpClass{.interpreted-text role="meth"} is not called when a test has [/]{.title-ref} in its name since pytest 6.2.0.This refers to the path part in pytest node IDs, e.g.
TestClass::test_itin the node IDtests/test_file.py::TestClass::test_it.Now, instead of assuming that the test name does not contain
/, it is assumed that test path does not contain::. We plan to hopefully make both of these work in the future.#8803: It is now possible to add colors to custom log levels on cli log.
By using
add_color_level <_pytest.logging.add_color_level>{.interpreted-text role="func"} from apytest_configurehook, colors can be added:See
log_colors{.interpreted-text role="ref"} for more information.#8822: When showing fixture paths in [--fixtures]{.title-ref} or [--fixtures-by-test]{.title-ref}, fixtures coming from pytest itself now display an elided path, rather than the full path to the file in the [site-packages]{.title-ref} directory.
#8898: Complex numbers are now treated like floats and integers when generating parameterization IDs.
#9062:
--stepwise-skipnow implicitly enables--stepwiseand can be used on its own.#9205:
pytest.Cache.set{.interpreted-text role="meth"} now preserves key order when saving dicts.Bug Fixes
#7124: Fixed an issue where
__main__.pywould raise anImportErrorwhen--doctest-moduleswas provided.#8061: Fixed failing
staticmethodtest cases if they are inherited from a parent test class.#8192:
testdir.makefilenow silently accepts values which don't start with.to maintain backward compatibility with older pytest versions.pytester.makefilenow issues a clearer error if the.is missing in theextargument.#8258: Fixed issue where pytest's
faulthandlersupport would not dump traceback on crashesif the
faulthandler{.interpreted-text role="mod"} module was already enabled during pytest startup (usingpython -X dev -m pytestfor example).#8317: Fixed an issue where illegal directory characters derived from
getpass.getuser()raised anOSError.#8367: Fix
Class.from_parentso it forwards extra keyword arguments to the constructor.#8377: The test selection options
pytest -kandpytest -mnow support matchingnames containing forward slash (
/) characters.#8384: The
@pytest.mark.skipdecorator now correctly handles its arguments. When thereasonargument is accidentally given both positional and as a keyword (e.g. because it was confused withskipif), aTypeErrornow occurs. Before, such tests were silently skipped, and the positional argument ignored. Additionally,reasonis now documented correctly as positional or keyword (rather than keyword-only).#8394: Use private names for internal fixtures that handle classic setup/teardown so that they don't show up with the default
--fixturesinvocation (but they still show up with--fixtures -v).#8456: The
required_plugins{.interpreted-text role="confval"} config option now works correctly when pre-releases of plugins are installed, rather than falsely claiming that those plugins aren't installed at all.#8464:
-c <config file>now also properly definesrootdiras the directory that contains<config file>.#8503:
pytest.MonkeyPatch.syspath_prepend{.interpreted-text role="meth"} no longer fails whensetuptoolsis not installed.It now only calls
pkg_resources.fixup_namespace_packages{.interpreted-text role="func"} ifpkg_resourceswas previously imported, because it is not needed otherwise.#8548: Introduce fix to handle precision width in
log-cli-formatin turn to fix output coloring for certain formats.#8796: Fixed internal error when skipping doctests.
#8983: The test selection options
pytest -kandpytest -mnow support matching names containing backslash ([\]{.title-ref}) characters.Backslashes are treated literally, not as escape characters (the values being matched against are already escaped).
#8990: Fix [pytest -vv]{.title-ref} crashing with an internal exception [AttributeError: 'str' object has no attribute 'relative_to']{.title-ref} in some cases.
#9077: Fixed confusing error message when
request.fspath/request.pathwas accessed from a session-scoped fixture.#9131: Fixed the URL used by
--pastebinto use bpa.st.#9163: The end line number and end column offset are now properly set for rewritten assert statements.
#9169: Support for the
filesAPI fromimportlib.resourceswithin rewritten files.#9272: The nose compatibility module-level fixtures [setup()]{.title-ref} and [teardown()]{.title-ref} are now only called once per module, instead of for each test function.
They are now called even if object-level [setup]{.title-ref}/[teardown]{.title-ref} is defined.
Improved Documentation
plugin-list{.interpreted-text role="ref"}. The list is updated on a periodic schedule.pytest.approx{.interpreted-text role="func"} documentation.--pdbclsmore accurately reflects the option's behavior.confcutdirbeing a configuration option: it can only be set through the--confcutdircommand-line option.non-python tests{.interpreted-text role="ref"} are now correctly documented in the reference docs. They were undocumented previously.Trivial/Internal Changes
setuptools_scm6.x to useSETUPTOOLS_SCM_PRETEND_VERSION_FOR_PYTESTfor more robust release tooling._pytest.code.getfslineno()function returnsPathinstead ofpy.path.local._pytest.python.path_matches_patterns()function takesPathinstead ofpy.path.local._pytest._code.Traceback.cut()function accepts anyos.PathLike[str], not justpy.path.local.python.PyObjMixininherit fromnodes.Nodeto carry over typing information.pytest.skip{.interpreted-text role="func"} is used at module level without passing [allow_module_level=True]{.title-ref}.regendocopts out ofTOX_ENVcachedir selection to ensure independent example test runs.CallSpec2._arg2scopenumattribute has been removed after an internal refactoring.pytest_assertion_pass{.interpreted-text role="hook"} is no longer considered experimental andfuture changes to it will be considered more carefully.
v6.2.5Compare Source
pytest 6.2.5 (2021-08-29)
Trivial/Internal Changes
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