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ChangeLog
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------------------
Pylint's ChangeLog
------------------
What's New in Pylint 2.14.0?
============================
Release date: TBA
..
Put new features here and also in 'doc/whatsnew/2.14.rst'
* ``Pylint`` now requires Python 3.7.2 or newer to run.
Closes #4301
* ``BaseChecker`` classes now require the ``linter`` argument to be passed.
* Update ``invalid-slots-object`` message to show bad object rather than its inferred value.
Closes #6101
* Added new checker ``typevar-name-mismatch``: TypeVar must be assigned to a variable with the same name as its name argument.
Closes #5224
* The ``config`` attribute of ``BaseChecker`` has been deprecated. You can use ``checker.linter.config``
to access the global configuration object instead of a checker-specific object.
Ref #5392
* The ``level`` attribute of ``BaseChecker`` has been deprecated: everything is now
displayed in ``--help``, all the time.
Ref #5392
* The ``options_providers`` attribute of ``ArgumentsManager`` has been deprecated.
Ref #5392
* The ``option_groups`` attribute of ``PyLinter`` has been deprecated.
Ref #5392
* The ``set_option`` method of ``BaseChecker`` has been deprecated. You can use ``checker.linter.set_option``
to set an option on the global configuration object instead of a checker-specific object.
Ref #5392
* The ``config`` attribute of ``PyLinter`` is now of the ``argparse.Namespace`` type instead of
``optparse.Values``.
Ref #5392
* ``UnsupportedAction`` has been deprecated.
Ref #5392
* ``OptionsManagerMixIn`` has been deprecated.
Ref #5392
* ``OptionParser`` has been deprecated.
Ref #5392
* ``Option`` has been deprecated.
Ref #5392
* ``OptionsProviderMixIn`` has been deprecated.
Ref #5392
* ``ConfigurationMixIn`` has been deprecated.
Ref #5392
* ``get_global_config`` has been deprecated. You can now access all global options from
``checker.linter.config``.
Ref #5392
* ``OptionsManagerMixIn`` has been replaced with ``ArgumentsManager``. ``ArgumentsManager`` is considered
private API and most methods that were public on ``OptionsManagerMixIn`` have now been deprecated and will
be removed in a future release.
Ref #5392
* ``OptionsProviderMixIn`` has been replaced with ``ArgumentsProvider``. ``ArgumentsProvider`` is considered
private API and most methods that were public on ``OptionsProviderMixIn`` have now been deprecated and will
be removed in a future release.
Ref #5392
* ``invalid-enum-extension``: Used when a class tries to extend an inherited Enum class.
Closes #5501
* Added the ``unrecognized-option`` message. Raised if we encounter any unrecognized options.
Closes #5259
* Added new checker ``typevar-double-variance``: The "covariant" and "contravariant" keyword arguments
cannot both be set to "True" in a TypeVar.
Closes #5895
* Re-enable checker ``bad-docstring-quotes`` for Python <= 3.7.
Closes #6087
* Exclude dunder calls on super() from raising ``unnecessary-dunder-call``.
Closes #6074
* Removed the broken ``generate-man`` option.
Closes #5283
Closes #1887
* Fix false negative for ``bad-string-format-type`` if the value to be formatted is passed in
as a variable holding a constant.
* Add new check ``unnecessary-dunder-call`` for unnecessary dunder method calls.
Closes #5936
* ``potential-index-error``: Emitted when the index of a list or tuple exceeds its length.
This checker is currently quite conservative to avoid false positives. We welcome
suggestions for improvements.
Closes #578
* The ``ignore-mixin-members`` option has been deprecated. You should now use the new
``ignored-checks-for-mixins`` option.
Closes #5205
* ``bad-option-value`` will be emitted whenever a configuration value or command line invocation
includes an unknown message.
Closes #4324
* Added the ``generate-toml-config`` option.
Ref #5462
* Added new checker ``unnecessary-list-index-lookup`` for indexing into a list while
iterating over ``enumerate()``.
Closes #4525
* Fix false positive for ``unsubscriptable-object`` in Python 3.8 and below for
statements guarded by ``if TYPE_CHECKING``.
Closes #3979
* Fix false negative for ``no-member`` when attempting to assign an instance
attribute to itself without any prior assignment.
Closes #1555
* The concept of checker priority has been removed.
* Add a new command line option ``--minimal-messages-config`` for ``pytest``, which disables all
irrelevant messages when running the functional tests.
* ``duplicate-argument-name`` now only raises once for each set of duplicated arguments.
* Fix bug where specifically enabling just ``await-outside-async`` was not possible.
* The ``set_config_directly`` decorator has been removed.
* Added new message called ``duplicate-value`` which identifies duplicate values inside sets.
Closes #5880
..
Insert your changelog randomly, it will reduce merge conflicts
(Ie. not necessarily at the end)
What's New in Pylint 2.13.6?
============================
Release date: TBA
* Asterisks are no longer required in Sphinx and Google style parameter documentation
for ``missing-param-doc`` and are parsed correctly.
Closes #5815
Closes #5406
* Fixed an ``AstroidError`` in 2.13.0 raised by the ``duplicate-code`` checker with
``ignore-imports`` or ``ignore-signatures`` enabled.
Closes #6301
What's New in Pylint 2.13.5?
============================
Release date: 2022-04-06
* Fix false positive regression in 2.13.0 for ``used-before-assignment`` for
homonyms between variable assignments in try/except blocks and variables in
subscripts in comprehensions.
Closes #6069
Closes #6136
* ``lru-cache-decorating-method`` has been renamed to ``cache-max-size-none`` and
will only be emitted when ``maxsize`` is ``None``.
Closes #6180
* Fix false positive for ``unused-import`` when disabling both ``used-before-assignment`` and ``undefined-variable``.
Closes #6089
* Narrow the scope of the ``unnecessary-ellipsis`` checker to:
* functions & classes which contain both a docstring and an ellipsis.
* A body which contains an ellipsis ``nodes.Expr`` node & at least one other statement.
* Fix false positive for ``used-before-assignment`` for assignments taking place via
nonlocal declarations after an earlier type annotation.
Closes #5394
* Fix crash for ``redefined-slots-in-subclass`` when the type of the slot is not a const or a string.
Closes #6100
* Only raise ``not-callable`` when all the inferred values of a property are not callable.
Closes #5931
* Fix a false negative for ``subclassed-final-class`` when a set of other messages were disabled.
What's New in Pylint 2.13.4?
============================
Release date: 2022-03-31
* Fix false positive regression in 2.13.0 for ``used-before-assignment`` for
homonyms between variable assignments in try/except blocks and variables in
a comprehension's filter.
Closes #6035
* Include ``testing_pylintrc`` in source and wheel distributions.
Closes #6028
* Fix crash in ``super-init-not-called`` checker when using ``ctypes.Union``.
Closes #6027
* Fix crash for ``unneccessary-ellipsis`` checker when an ellipsis is used inside of a container or a lambda expression.
Closes #6036
Closes #6037
Closes #6048
What's New in Pylint 2.13.3?
============================
Release date: 2022-03-29
* Fix false positive for ``unnecessary-ellipsis`` when using an ellipsis as a default argument.
Closes #5973
* Fix crash involving unbalanced tuple unpacking.
Closes #5998
* Fix false positive for 'nonexistent-operator' when repeated '-' are
separated (e.g. by parens).
Closes #5769
What's New in Pylint 2.13.2?
============================
Release date: 2022-03-27
* Fix crash when subclassing a ``namedtuple``.
Closes #5982
* Fix false positive for ``superfluous-parens`` for patterns like
"return (a or b) in iterable".
Closes #5803
* Fix a false negative regression in 2.13.0 where ``protected-access`` was not
raised on functions.
Fixes #5989
* Better error messages in case of crash if pylint can't write the issue template.
Refer to #5987
What's New in Pylint 2.13.1?
============================
Release date: 2022-03-26
* Fix a regression in 2.13.0 where ``used-before-assignment`` was emitted for
the usage of a nonlocal in a try block.
Fixes #5965
* Avoid emitting ``raising-bad-type`` when there is inference ambiguity on
the variable being raised.
Closes #2793
* Loosen TypeVar default name pattern a bit to allow names with multiple uppercase
characters. E.g. ``HVACModeT`` or ``IPAddressT``.
Closes #5981
* Fixed false positive for ``unused-argument`` when a ``nonlocal`` name is used
in a nested function that is returned without being called by its parent.
Closes #5187
* Fix program crash for ``modified_iterating-list/set/dict`` when the list/dict/set
being iterated through is a function call.
Closes #5969
* Don't emit ``broken-noreturn`` and ``broken-collections-callable`` errors
inside ``if TYPE_CHECKING`` blocks.
What's New in Pylint 2.13.0?
============================
Release date: 2022-03-24
* Add missing dunder methods to ``unexpected-special-method-signature`` check.
* No longer emit ``no-member`` in for loops that reference ``self`` if the binary operation that
started the for loop uses a ``self`` that is encapsulated in tuples or lists.
Ref PyCQA/astroid#1360
Closes #4826
* Output better error message if unsupported file formats are used with ``pyreverse``.
Closes #5950
* Fix pyreverse diagrams type hinting for classmethods and staticmethods.
* Fix pyreverse diagrams type hinting for methods returning None.
* Fix matching ``--notes`` options that end in a non-word character.
Closes #5840
* Updated the position of messages for class and function defintions to no longer cover
the complete definition. Only the ``def`` or ``class`` + the name of the class/function
are covered.
Closes #5466
* ``using-f-string-in-unsupported-version`` and ``using-final-decorator-in-unsupported-version`` msgids
were renamed from ``W1601`` and ``W1602`` to ``W2601`` and ``W2602``. Disabling using these msgids will break.
This is done in order to restore consistency with the already existing msgids for ``apply-builtin`` and
``basestring-builtin`` from the now deleted python 3K+ checker. There is now a check that we're not using
existing msgids or symbols from deleted checkers.
Closes #5729
* The line numbering for messages related to function arguments is now more accurate. This can
require some message disables to be relocated to updated positions.
* Add ``--recursive`` option to allow recursive discovery of all modules and packages in subtree. Running pylint with
``--recursive=y`` option will check all discovered ``.py`` files and packages found inside subtree of directory provided
as parameter to pylint.
Closes #352
* Add ``modified-iterating-list``, ``modified-iterating-dict`` and ``modified-iterating-set``,
emitted when items are added to or removed from respectively a list, dictionary or
set being iterated through.
Closes #5348
* Fix false-negative for ``assignment-from-none`` checker using list.sort() method.
closes #5722
* New extension ``import-private-name``: indicate imports of external private packages
and objects (prefixed with ``_``). It can be loaded using ``load-plugins=pylint.extensions.private_import``.
Closes #5463
* Fixed crash from ``arguments-differ`` and ``arguments-renamed`` when methods were
defined outside the top level of a class.
Closes #5648
* Removed the deprecated ``check_docs`` extension. You can use the ``docparams`` checker
to get the checks previously included in ``check_docs``.
Closes #5322
* Added a ``testutil`` extra require to the packaging, as ``gitpython`` should not be a dependency
all the time but is still required to use the primer helper code in ``pylint.testutil``. You can
install it with ``pip install pylint[testutil]``.
Closes #5486
* Reinstated checks from the python3 checker that are still useful for python 3
(``eq-without-hash``). This is now in the ``pylint.extensions.eq_without_hash`` optional
extension.
Closes #5025
* Fixed an issue where ``ungrouped-imports`` could not be disabled without raising
``useless-suppression``.
Ref #2366
* Added several checkers to deal with unicode security issues
(see `Trojan Sources <https://trojansource.codes/>`_ and
`PEP 672 <https://peps.python.org/pep-0672/>`_ for details) that also
concern the readability of the code. In detail the following checks were added:
* ``bad-file-encoding`` checks that the file is encoded in UTF-8 as suggested by
`PEP8 <https://peps.python.org/pep-0008/#source-file-encoding>`_.
UTF-16 and UTF-32 are `not supported by Python <https://bugs.python.org/issue1503789>`_
at the moment. If this ever changes
``invalid-unicode-codec`` checks that they aren't used, to allow for backwards
compatibility.
* ``bidirectional-unicode`` checks for bidirectional unicode characters that
could make code execution different than what the user expects.
* ``invalid-character-backspace``, ``invalid-character-carriage-return``,
``invalid-character-sub``, ``invalid-character-esc``,
``invalid-character-zero-width-space`` and ``invalid-character-nul``
to check for possibly harmful unescaped characters.
Closes #5281
* Use the ``tomli`` package instead of ``toml`` to parse ``.toml`` files.
Closes #5885
* Fix false positive - Allow unpacking of ``self`` in a subclass of ``typing.NamedTuple``.
Closes #5312
* Fixed false negative ``unpacking-non-sequence`` when value is an empty list.
Closes #5707
* Better warning messages for useless else or elif when a function returns early.
Closes #5614
* Fixed false positive ``consider-using-dict-comprehension`` when creating a dict
using a list of tuples where key AND value vary depending on the same condition.
Closes #5588
* Fixed false positive for ``global-variable-undefined`` when ``global`` is used with a class name
Closes #3088
* Fixed false positive for ``unused-variable`` when a ``nonlocal`` name is assigned as part of a multi-name assignment.
Closes #3781
* Fixed a crash in ``unspecified-encoding`` checker when providing ``None``
to the ``mode`` argument of an ``open()`` call.
Closes #5731
* Fixed a crash involving a ``NewType`` named with an f-string.
Closes #5770
Ref PyCQA/astroid#1400
* Improved ``bad-open-mode`` message when providing ``None`` to the ``mode``
argument of an ``open()`` call.
Closes #5733
* Added ``lru-cache-decorating-method`` checker with checks for the use of ``functools.lru_cache``
on class methods. This is unrecommended as it creates memory leaks by never letting the instance
getting garbage collected.
Closes #5670
* Fixed crash with recursion error for inference of class attributes that referenced
the class itself.
Closes #5408
Ref PyCQA/astroid#1392
* Fixed false positive for ``unused-argument`` when a method overridden in a subclass
does nothing with the value of a keyword-only argument.
Closes #5771
Ref PyCQA/astroid#1382
* The issue template for crashes is now created for crashes which were previously not covered
by this mechanism.
Closes #5668
* Rewrote checker for ``non-ascii-name``.
It now ensures __all__ Python names are ASCII and also properly
checks the names of imports (``non-ascii-module-import``) as
well as file names (``non-ascii-file-name``) and emits their respective new warnings.
Non ASCII characters could be homoglyphs (look alike characters) and hard to
enter on a non specialized keyboard.
See `Confusable Characters in PEP 672 <https://peps.python.org/pep-0672/#confusing-features>`_
* When run in parallel mode ``pylint`` now pickles the data passed to subprocesses with
the ``dill`` package. The ``dill`` package has therefore been added as a dependency.
* An astroid issue where symlinks were not being taken into account
was fixed
Closes #1470
Closes #3499
Closes #4302
Closes #4798
Closes #5081
* Fix a crash in ``unused-private-member`` checker when analyzing code using
``type(self)`` in bound methods.
Closes #5569
* Optimize parsing of long lines when ``missing-final-newline`` is enabled.
Closes #5724
* Fix false positives for ``used-before-assignment`` from using named
expressions in a ternary operator test and using that expression as
a call argument.
Closes #5177, #5212
* Fix false positive for ``undefined-variable`` when ``namedtuple`` class
attributes are used as return annotations.
Closes #5568
* Fix false negative for ``undefined-variable`` and related variable messages
when the same undefined variable is used as a type annotation and is
accessed multiple times, or is used as a default argument to a function.
Closes #5399
* Pyreverse - add output in mermaidjs format
* Emit ``used-before-assignment`` instead of ``undefined-variable`` when attempting
to access unused type annotations.
Closes #5713
* Added confidence level ``CONTROL_FLOW`` for warnings relying on assumptions
about control flow.
* ``used-before-assignment`` now considers that assignments in a try block
may not have occurred when the except or finally blocks are executed.
Closes #85, #2615
* Fixed false negative for ``used-before-assignment`` when a conditional
or context manager intervened before the try statement that suggested
it might fail.
Closes #4045
* Fixed false negative for ``used-before-assignment`` in finally blocks
if an except handler did not define the assignment that might have failed
in the try block.
* Fixed extremely long processing of long lines with comma's.
Closes #5483
* Fixed crash on properties and inherited class methods when comparing them for
equality against an empty dict.
Closes #5646
* Fixed a false positive for ``assigning-non-slot`` when the slotted class
defined ``__setattr__``.
Closes #3793
* Fixed a false positive for ``invalid-class-object`` when the object
being assigned to the ``__class__`` attribute is uninferable.
* Fixed false positive for ``used-before-assignment`` with self-referential type
annotation in conditional statements within class methods.
Closes #5499
* Add checker ``redefined-slots-in-subclass``: Emitted when a slot is redefined in a subclass.
Closes #5617
* Fixed false positive for ``global-variable-not-assigned`` when the ``del`` statement is used
Closes #5333
* By default, pylint does no longer take files starting with ``.#`` into account. Those are
considered `emacs file locks`. See
https://www.gnu.org/software/emacs/manual/html_node/elisp/File-Locks.html.
This behavior can be reverted by redefining the ``ignore-patterns`` option.
Closes #367
* Fixed a false positive for ``used-before-assignment`` when a named expression
appears as the first value in a container.
Closes #5112
* ``used-before-assignment`` now assumes that assignments in except blocks
may not have occurred and warns accordingly.
Closes #4761
* When evaluating statements after an except block, ``used-before-assignment``
assumes that assignments in the except blocks took place if the
corresponding try block contained a return statement.
Closes #5500
* Fixed a false negative for ``used-before-assignment`` when some but not all
except handlers defined a name relied upon after an except block when the
corresponding try block contained a return statement.
Closes #5524
* When evaluating statements in the ``else`` clause of a loop, ``used-before-assignment``
assumes that assignments in the except blocks took place if the
except handlers constituted the only ways for the loop to finish without
breaking early.
Closes #5683
* ``used-before-assignment`` now checks names in try blocks.
* Fixed false positive with ``used-before-assignment`` for assignment expressions
in lambda statements.
Closes #5360, #3877
* Fixed a false positive (affecting unreleased development) for
``used-before-assignment`` involving homonyms between filtered comprehensions
and assignments in except blocks.
Closes #5586
* Fixed crash with slots assignments and annotated assignments.
Closes #5479
* Fixed crash on list comprehensions that used ``type`` as inner variable name.
Closes #5461
* Fixed crash in ``use-maxsplit-arg`` checker when providing the ``sep`` argument
to ``str.split()`` by keyword.
Closes #5737
* Fix false positive for ``unused-variable`` for a comprehension variable matching
an outer scope type annotation.
Closes #5326
* Fix false negative for ``undefined-variable`` for a variable used multiple times
in a comprehension matching an unused outer scope type annotation.
Closes #5654
* Some files in ``pylint.testutils`` were deprecated. In the future imports should be done from the
``pylint.testutils.functional`` namespace directly.
* Fixed false positives for ``no-value-for-parameter`` with variadic
positional arguments.
Closes #5416
* ``safe_infer`` no longer makes an inference when given two function
definitions with differing numbers of arguments.
Closes #3675
* Fix ``comparison-with-callable`` false positive for callables that raise, such
as typing constants.
Closes #5557
* Fixed a crash on ``__init__`` nodes when the attribute was previously uninferable due to a cache
limit size. This limit can be hit when the inheritance pattern of a class (and therefore of the ``__init__`` attribute) is very large.
Closes #5679
* Fix false positive for ``used-before-assignment`` from a class definition
nested under a function subclassing a class defined outside the function.
Closes #4590
* Fix ``unnecessary_dict_index_lookup`` false positive when deleting a dictionary's entry.
Closes #4716
* Fix false positive for ``used-before-assignment`` when an except handler
shares a name with a test in a filtered comprehension.
Closes #5817
* Fix crash in ``unnecessary-dict-index-lookup`` checker if the output of
``items()`` is assigned to a 1-tuple.
Closes #5504
* When invoking ``pylint``, ``epylint``, ``symilar`` or ``pyreverse`` by importing them in a python file
you can now pass an ``argv`` keyword besides patching ``sys.argv``.
Closes #5320
* The ``PyLinter`` class will now be initialized with a ``TextReporter``
as its reporter if none is provided.
* Fix ``super-init-not-called`` when parent or ``self`` is a ``Protocol``
Closes #4790
* Fix false positive ``not-callable`` with attributes that alias ``NamedTuple``
Partially closes #1730
* Emit ``redefined-outer-name`` when a nested except handler shadows an outer one.
Closes #4434
Closes #5370
* Fix false positive ``super-init-not-called`` for classes that inherit their ``init`` from
a parent.
Closes #4941
* ``encoding`` can now be supplied as a positional argument to calls that open
files without triggering ``unspecified-encoding``.
Closes #5638
* Fatal errors now emit a score of 0.0 regardless of whether the linted module
contained any statements
Closes #5451
* ``fatal`` was added to the variables permitted in score evaluation expressions.
* The default score evaluation now uses a floor of 0.
Closes #2399
* Fix false negative for ``consider-iterating-dictionary`` during membership checks encapsulated in iterables
or ``not in`` checks
Closes #5323
* Fixed crash on uninferable decorators on Python 3.6 and 3.7
* Add checker ``unnecessary-ellipsis``: Emitted when the ellipsis constant is used unnecessarily.
Closes #5460
* Disable checker ``bad-docstring-quotes`` for Python <= 3.7, because in these versions the line
numbers for decorated functions and classes are not reliable which interferes with the checker.
Closes #3077
* Fixed incorrect classification of Numpy-style docstring as Google-style docstring for
docstrings with property setter documentation.
Docstring classification is now based on the highest amount of matched sections instead
of the order in which the docstring styles were tried.
* Fixed detection of ``arguments-differ`` when superclass static
methods lacked a ``@staticmethod`` decorator.
Closes #5371
* ``TypingChecker``
* Added new check ``broken-noreturn`` to detect broken uses of ``typing.NoReturn``
if ``py-version`` is set to Python ``3.7.1`` or below.
https://bugs.python.org/issue34921
* Added new check ``broken-collections-callable`` to detect broken uses of ``collections.abc.Callable``
if ``py-version`` is set to Python ``3.9.1`` or below.
https://bugs.python.org/issue42965
* The ``testutils`` for unittests now accept ``end_lineno`` and ``end_column``. Tests
without these will trigger a ``DeprecationWarning``.
* ``arguments-differ`` will no longer complain about method redefinitions with extra parameters
that have default values.
Closes #1556, #5338
* Fixed false positive ``unexpected-keyword-arg`` for decorators.
Closes #258
* Importing the deprecated stdlib module ``xml.etree.cElementTree`` now emits ``deprecated_module``.
Closes #5862
* Disables for ``deprecated-module`` and similar warnings for stdlib features deprecated
in newer versions of Python no longer raise ``useless-suppression`` when linting with
older Python interpreters where those features are not yet deprecated.
* Importing the deprecated stdlib module ``distutils`` now emits ``deprecated_module`` on Python 3.10+.
* ``missing-raises-doc`` will now check the class hierarchy of the raised exceptions
.. code-block:: python
def my_function()
"""My function.
Raises:
Exception: if something fails
"""
raise ValueError
Closes #4955
* Allow disabling ``duplicate-code`` with a disable comment when running through
pylint.
Closes #214
* Improve ``invalid-name`` check for ``TypeVar`` names.
The accepted pattern can be customized with ``--typevar-rgx``.
Closes #3401
* Added new checker ``typevar-name-missing-variance``. Emitted when a covariant
or contravariant ``TypeVar`` does not end with ``_co`` or ``_contra`` respectively or
when a ``TypeVar`` is not either but has a suffix.
* Allow usage of mccabe 0.7.x release
Closes #5878
* Fix ``unused-private-member`` false positive when accessing private methods through ``property``.
Closes #4756
What's New in Pylint 2.12.2?
============================
Release date: 2021-11-25
* Fixed a false positive for ``unused-import`` where everything
was not analyzed properly inside typing guards.
* Fixed a false-positive regression for ``used-before-assignment`` for
typed variables in the body of class methods that reference the same class
Closes #5342
* Specified that the ``ignore-paths`` option considers "\" to represent a
windows directory delimiter instead of a regular expression escape
character.
* Fixed a crash with the ``ignore-paths`` option when invoking the option
via the command line.
Closes #5437
* Fixed handling of Sphinx-style parameter docstrings with asterisks. These
should be escaped with by prepending a "\".
Closes #5406
* Add ``endLine`` and ``endColumn`` keys to output of ``JSONReporter``.
Closes #5380
* Fixed handling of Google-style parameter specifications where descriptions
are on the line following the parameter name. These were generating
false positives for ``missing-param-doc``.
Closes #5452
* Fix false negative for ``consider-iterating-dictionary`` during membership checks encapsulated in iterables
or ``not in`` checks
Closes #5323
* ``unused-import`` now check all ancestors for typing guards
Closes #5316
What's New in Pylint 2.12.1?
============================
Release date: 2021-11-25
* Require Python ``3.6.2`` to run pylint.
Closes #5065
What's New in Pylint 2.12.0?
============================
Release date: 2021-11-24
* Upgrade astroid to 2.9.0
Closes #4982
* Add ability to add ``end_line`` and ``end_column`` to the ``--msg-template`` option.
With the standard ``TextReporter`` this will add the line and column number of the
end of a node to the output of Pylint. If these numbers are unknown, they are represented
by an empty string.
* Introduced primer tests and a configuration tests framework. The helper classes available in
``pylint/testutil/`` are still unstable and might be modified in the near future.
Closes #4412 #5287
* Fix ``install graphiz`` message which isn't needed for puml output format.
* ``MessageTest`` of the unittest ``testutil`` now requires the ``confidence`` attribute
to match the expected value. If none is provided it is set to ``UNDEFINED``.
* ``add_message`` of the unittest ``testutil`` now actually handles the ``col_offset`` parameter
and allows it to be checked against actual output in a test.
* Fix a crash in the ``check_elif`` extensions where an undetected if in a comprehension
with an if statement within a f-string resulted in an out of range error. The checker no
longer relies on counting if statements anymore and uses known if statements locations instead.
It should not crash on badly parsed if statements anymore.
* Fix ``simplify-boolean-expression`` when condition can be inferred as False.
Closes #5200
* Fix exception when pyreverse parses ``property function`` of a class.
* The functional ``testutils`` now accept ``end_lineno`` and ``end_column``. Expected
output files without these will trigger a ``DeprecationWarning``. Expected output files
can be easily updated with the ``python tests/test_functional.py --update-functional-output`` command.
* The functional ``testutils`` now correctly check the distinction between ``HIGH`` and
``UNDEFINED`` confidence. Expected output files without defined ``confidence`` levels will now
trigger a ``DeprecationWarning``. Expected output files can be easily updated with the
``python tests/test_functional.py --update-functional-output`` command.
* The functional test runner now supports the option ``min_pyver_end_position`` to control on which python
versions the ``end_lineno`` and ``end_column`` attributes should be checked. The default value is 3.8.
* Fix ``accept-no-yields-doc`` and ``accept-no-return-doc`` not allowing missing ``yield`` or
``return`` documentation when a docstring is partially correct
Closes #5223
* Add an optional extension ``consider-using-any-or-all`` : Emitted when a ``for`` loop only
produces a boolean and could be replaced by ``any`` or ``all`` using a generator. Also suggests
a suitable any or all statement.
Closes #5008
* Properly identify parameters with no documentation and add new message called ``missing-any-param-doc``
Closes #3799
* Add checkers ``overridden-final-method`` & ``subclassed-final-class``
Closes #3197
* Fixed ``protected-access`` for accessing of attributes and methods of inner classes
Closes #3066
* Added support for ``ModuleNotFoundError`` (``import-error`` and ``no-name-in-module``).