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ChangeLog
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------------------
Pylint's ChangeLog
------------------
What's New in Pylint 2.9.0?
===========================
Release date: TBA
..
Put new features and bugfixes here and also in 'doc/whatsnew/2.9.rst'
* astroid has been upgraded to 2.6.0
* ``setuptools_scm`` has been removed and replaced by ``tbump`` in order to not
have hidden runtime dependencies to setuptools
* Appveyor is no longer used in the continuous integration
* Added ``deprecated-decorator``: Emitted when deprecated decorator is used.
Closes #4429
* Added ``ignore-paths`` behaviour. Defined regex patterns are matched against full file path.
Close #2541
* Fix false negative for ``consider-using-with`` if calls like ``open()`` were used outside of assignment expressions.
* The warning for ``arguments-differ`` now signals explicitly the difference it detected
by naming the argument or arguments that changed and the type of change that occurred.
* Suppress ``consider-using-with`` inside context managers.
Closes #4430
* Added ``--fail-on`` option to return non-zero exit codes regardless of ``--fail-under`` value.
* numversion tuple contains integers again to fix multiple pylint's plugins that relied on it
Closes #4420
* Fix false-positive ``too-many-ancestors`` when inheriting from builtin classes,
especially from the ``collections.abc`` module
Closes #4166
Closes #4415
* Stdlib deprecated modules check is moved to stdlib checker. New deprecated
modules are added.
* Fix raising false-positive ``no-member`` on abstract properties
* Created new error message called ``arguments-renamed`` which identifies any changes at the parameter
names of overridden functions.
Closes #3536
* New checker ``consider-using-dict-items``. Emitted when iterating over dictionary keys and then
indexing the same dictionary with the key within loop body.
Closes #3389
* Don't emit ``import-error`` if import guarded behind ``if sys.version_info >= (x, x)``
* Fix incompatibility with Python 3.6.0 caused by ``typing.Counter`` and ``typing.NoReturn`` usage
Closes #4412
* New checker ``use-maxsplit-arg``. Emitted either when accessing only the first or last
element of ``str.split()``.
Closes #4440
* Add ignore_signatures to duplicate code checker
Closes #3619
* Fix documentation errors in "Block disables" paragraph of User Guide.
* New checker ``unnecessary-dict-index-lookup``. Emitted when iterating over dictionary items
(key-value pairs) and accessing the value by index lookup.
Closes #4470
* New checker``consider-using-from-import``. Emitted when a submodule/member of a package is imported and aliased
with the same name.
Closes #2309
* Allow comma-separated list in ``output-format`` and separate output files for
each specified format.
Closes #1798
* Make ``using-constant-test`` detect constant tests consisting of list literals like ``[]`` and
``[1, 2, 3]``.
* Improved error message of ``unnecessary-comprehension`` checker by providing code suggestion.
Closes #4499
* New checker ``unused-private-member``. Emitted when a private member (i.e., starts with ``__``) of a class
is defined but not used.
Closes #4483
* Fix false negative of ``consider-using-enumerate`` when iterating over an attribute.
Closes #3657
* New checker ``invalid-class-object``. Emitted when a non-class is assigned to a ``__class__`` attribute.
Closes #585
* Fix a crash when a plugin from the configuration could not be loaded and raise an error
'bad-plugin-value' instead
Closes #4555
* Added handling of floating point values when parsing configuration from pyproject.toml
Closes #4518
* ``invalid-length-returned``, now also works when nothing at all is returned
following an upgrade in astroid.
* ``logging-format-interpolation`` and ``logging-not-lazy``, now works on logger
class created from renamed logging import following an upgrade in astroid.
* Fix false-positive ``no-member`` with generic base class
Closes PyCQA/astroid#942
* Fix ``assigning-non-slot`` false-positive with base that inherits from ``typing.Generic``
Closes #4509
Closes PyCQA/astroid#999
* New checker ``invalid-all-format``. Emitted when ``__all__`` has an invalid format,
i.e. isn't a ``tuple`` or ``list``.
* Fix false positive ``unused-variable`` and ``undefined-variable`` with
Pattern Matching in Python 3.10
* New checker ``await-outside-async``. Emitted when await is used outside an async function.
* Clarify documentation for ``typing`` extension.
Closes #4545
* Add new extension ``CodeStyleChecker``. It includes checkers that can improve code
consistency. As such they don't necessarily provide a performance benefit
and are often times opinionated.
* New checker ``consider-using-tuple``. Emitted when an in-place defined
list or set can be replaced by a tuple.
* New checker ``consider-using-namedtuple-or-dataclass``. Emitted when dictionary values
can be replaced by namedtuples or dataclass instances.
* Fix error that occurred when using ``slice`` as subscript for dict.
* Reduce false-positives around inference of ``.value`` and ``.name``
properties on ``Enum`` subclasses, following an upgrade in astroid
Closes #1932
Closes #2062
* Fix issue with ``cached_property`` that caused ``invalid-overridden-method`` error
when overriding a ``property``.
Closes #4023
* Fix ``unused-import`` false positive for imported modules referenced in
attribute lookups in type comments.
Closes #4603
What's New in Pylint 2.8.3?
===========================
Release date: 2021-05-31
* Astroid has been pinned to 2.5.6 for the 2.8 branch see #4527.
What's New in Pylint 2.8.2?
===========================
Release date: 2021-04-26
* Keep ``__pkginfo__.numversion`` a tuple to avoid breaking pylint-django.
Closes #4405
* scm_setuptools has been added to the packaging.
* Pylint's tags are now the standard form ``vX.Y.Z`` and not ``pylint-X.Y.Z`` anymore.
* New warning message ``deprecated-class``. This message is emitted if import or call deprecated class of the
standard library (like ``collections.Iterable`` that will be removed in Python 3.10).
Closes #4388
What's New in Pylint 2.8.1?
===========================
Release date: 2021-04-25
* Add numversion back (temporarily) in ``__pkginfo__`` because it broke Pylama and revert the unnecessary
``pylint.version`` breaking change.
Closes #4399
What's New in Pylint 2.8.0?
===========================
Release date: 2021-04-24
* New refactoring message ``consider-using-with``. This message is emitted if resource-allocating functions or methods of the
standard library (like ``open()`` or ``threading.Lock.acquire()``) that can be used as a context manager are called without
a ``with`` block.
Closes #3413
* Resolve false positives on unused variables in decorator functions
Closes #4252
* Add new extension ``ConfusingConsecutiveElifChecker``. This optional checker emits a refactoring message (R5601 ``confusing-consecutive-elif``)
if if/elif statements with different indentation levels follow directly one after the other.
* New option ``--output=<file>`` to output result to a file rather than printing to stdout.
Closes #1070
* Use a prescriptive message for ``unidiomatic-typecheck``
Closes #3891
* Apply ``const-naming-style`` to module constants annotated with
``typing.Final``
* The packaging is now done via setuptools exclusively. ``doc``, ``tests``, ``man``, ``elisp`` and ``Changelog`` are
not packaged anymore - reducing the size of the package by 75%.
* Debian packaging is now (officially) done in https://salsa.debian.org/python-team/packages/pylint.
* The 'doc' extra-require has been removed.
* ``__pkginfo__`` now only contain ``__version__`` (also accessible with ``pylint.__version__``), other meta-information are still
accessible with ``from importlib import metadata;metadata.metadata('pylint')``.
* COPYING has been renamed to LICENSE for standardization.
* Fix false-positive ``used-before-assignment`` in function returns.
Closes #4301
* Updated ``astroid`` to 2.5.3
Closes #2822, #4206, #4284
* Add ``consider-using-min-max-builtin`` check for if statement which could be replaced by Python builtin min or max
Closes #3406
* Don't auto-enable postponed evaluation of type annotations with Python 3.10
* Update ``astroid`` to 2.5.4
* Add new extension ``TypingChecker``. This optional checker can detect the use of deprecated typing aliases
and can suggest the use of the alternative union syntax where possible.
(For example, 'typing.Dict' can be replaced by 'dict', and 'typing.Unions' by '|', etc.)
Make sure to check the config options if you plan on using it!
* Reactivates old counts in report mode.
Closes #3819
* During detection of ``inconsistent-return-statements`` consider that ``assert False`` is a return node.
Closes #4019
* Run will not fail if score exactly equals ``config.fail_under``.
* Functions that never returns may declare ``NoReturn`` as type hints, so that
``inconsistent-return-statements`` is not emitted.
Closes #4122, #4188
* Improved protected access checks to allow access inside class methods
Closes #1159
* Fix issue with PEP 585 syntax and the use of ``collections.abc.Set``
* Fix issue that caused class variables annotated with ``typing.ClassVar`` to be
identified as class constants. Now, class variables annotated with
``typing.Final`` are identified as such.
Closes #4277
* Continuous integration with read the doc has been added.
Closes #3850
* Don't show ``DuplicateBasesError`` for attribute access
* Fix crash when checking ``setup.cfg`` for pylint config when there are non-ascii characters in there
Closes #4328
* Allow code flanked in backticks to be skipped by spellchecker
Closes #4319
* Allow Python tool directives (for black, flake8, zimports, isort, mypy, bandit, pycharm) at beginning of comments to be skipped by spellchecker
Closes #4320
* Fix issue that caused emacs pylint to fail when used with tramp
* Improve check for invalid PEP 585 syntax inside functions
if postponed evaluation of type annotations is enabled
* Improve check for invalid PEP 585 syntax as default function arguments
What's New in Pylint 2.7.4?
===========================
Release date: 2021-03-30
* Fix a problem with disabled msgid not being ignored
Closes #4265
* Fix issue with annotated class constants
Closes #4264
What's New in Pylint 2.7.3?
===========================
Release date: 2021-03-29
* Introduce logic for checking deprecated attributes in DeprecationMixin.
* Reduce usage of blacklist/whitelist terminology. Notably, ``extension-pkg-allow-list`` is an
alternative to ``extension-pkg-whitelist`` and the message ``blacklisted-name`` is now emitted as
``disallowed-name``. The previous names are accepted to maintain backward compatibility.
* Move deprecated checker to ``DeprecatedMixin``
Closes #4086
* Bump ``astroid`` version to ``2.5.2``
* Fix false positive for ``method-hidden`` when using private attribute and method
Closes #3936
* ``use-symbolic-message-instead`` now also works on legacy messages like ``C0111`` (``missing-docstring``).
* Remove unwanted print to stdout from ``_emit_no_member``
* Introduce a command-line option to specify pyreverse output directory
Closes #4159
* Fix issue with Enums and ``class-attribute-naming-style=snake_case``
Closes #4149
* Add ``allowed-redefined-builtins`` option for fine tuning ``redefined-builtin`` check.
Close #3263
* Fix issue when executing with ``python -m pylint``
Closes #4161
* Exempt ``typing.TypedDict`` from ``too-few-public-methods`` check.
Closes #4180
* Fix false-positive ``no-member`` for typed annotations without default value.
Closes #3167
* Add ``--class-const-naming-style`` for Enum constants and class variables annotated
with ``typing.ClassVar``
Closes #4181
* Fix astroid.Inference error for undefined-variables with ``len()```
Closes #4215
* Fix column index on FIXME warning messages
Closes #4218
* Improve handling of assignment expressions, better edge case handling
Closes #3763, #4238
* Improve check if class is subscriptable PEP585
* Fix documentation and filename handling of --import-graph
* Fix false-positive for ``unused-import`` on class keyword arguments
Closes #3202
* Fix regression with plugins on PYTHONPATH if latter is cwd
Closes #4252
What's New in Pylint 2.7.2?
===========================
Release date: 2021-02-28
* Fix False Positive on ``Enum.__members__.items()``, ``Enum.__members__.values``, and ``Enum.__members__.keys``
Closes #4123
* Properly strip dangerous sys.path entries (not just the first one)
Closes #3636
* Workflow and packaging improvements
What's New in Pylint 2.7.1?
===========================
Release date: 2021-02-23
* Expose ``UnittestLinter`` in pylint.testutils
* Don't check directories starting with '.' when using register_plugins
Closes #4119
What's New in Pylint 2.7.0?
===========================
Release date: 2021-02-21
* Introduce DeprecationMixin for reusable deprecation checks.
Closes #4049
* Fix false positive for ``builtin-not-iterating`` when ``map`` receives iterable
Closes #4078
* Python 3.6+ is now required.
* Fix false positive for ``builtin-not-iterating`` when ``zip`` receives iterable
* Add ``nan-comparison`` check for NaN comparisons
* Bug fix for empty-comment message line number.
Closes #4009
* Only emit ``bad-reversed-sequence`` on dictionaries if below py3.8
Closes #3940
* Handle class decorators applied to function.
Closes #3882
* Add check for empty comments
* Fix minor documentation issue in contribute.rst
* Enums are now required to be named in UPPER_CASE by ``invalid-name``.
Close #3834
* Add missing checks for deprecated functions.
* Postponed evaluation of annotations are now recognized by default if python version is above 3.10
Closes #3992
* Fix column metadata for anomalous backslash lints
* Drop support for Python 3.5
* Add support for pep585 with postponed evaluation
Closes #3320
* Check alternative union syntax - PEP 604
Closes #4065
* Fix multiple false positives with assignment expressions
Closes #3347, #3953, #3865, #3275
* Fix TypedDict inherit-non-class false-positive Python 3.9+
Closes #1927
* Fix issue with nested PEP 585 syntax
* Fix issue with nested PEP 604 syntax
* Fix a crash in ``undefined-variable`` caused by chained attributes in metaclass
Close #3742
* Fix false positive for ``not-async-context-manager`` when ``contextlib.asynccontextmanager`` is used
Close #3862
* Fix linter multiprocessing pool shutdown (triggered warnings when runned in parallels with other pytest plugins)
Closes #3779
* Fix a false-positive emission of ``no-self-use`` and ``unused-argument`` for methods
of generic structural types (`Protocol[T]`)
Closes #3885
* Fix bug that lead to duplicate messages when using ``--jobs 2`` or more.
Close #3584
* Adds option ``check-protected-access-in-special-methods`` in the ClassChecker to activate/deactivate
``protected-access`` message emission for single underscore prefixed attribute in special methods.
Close #3120
* Fix vulnerable regular expressions in ``pyreverse``
Close #3811
* ``inconsistent-return-statements`` message is now emitted if one of ``try/except`` statement
is not returning explicitly while the other do.
Closes #3468
* Fix ``useless-super-delegation`` false positive when default keyword argument is a dictionnary.
Close #3773
* Fix a crash when a specified config file does not exist
* Add support to ``ignored-argument-names`` in DocstringParameterChecker and adds ``useless-param-doc`` and ``useless-type-doc`` messages.
Close #3800
* Enforce docparams consistently when docstring is not present
Close #2738
* Fix ``duplicate-code`` false positive when lines only contain whitespace and non-alphanumeric characters (e.g. parentheses, bracket, comma, etc.)
* Improve lint message for ``singleton-comparison`` with bools
* Fix spell-checker crash on indented docstring lines that look like # comments
Close #3786
* Fix AttributeError in checkers/refactoring.py
* Improve sphinx directives spelling filter
* Fix a bug with postponed evaluation when using aliases for annotations.
Close #3798
* Fix minor documentation issues
* Improve the performance of the line length check.
* Removed incorrect deprecation of ``inspect.getfullargspec``
* Fix ``signature-differs`` false positive for functions with variadics
Close #3737
* Fix a crash in ``consider-using-enumerate`` when encountering ``range()`` without arguments
Close #3735
* ``len-as-conditions`` is now triggered only for classes that are inheriting directly from list, dict, or set and not implementing the ``__bool__`` function, or from generators like range or list/dict/set comprehension. This should reduce the false positives for other classes, like pandas's DataFrame or numpy's Array.
Close #1879
* Fixes duplicate-errors not working with -j2+
Close #3314
* ``generated-members`` now matches the qualified name of members
Close #2498
* Add check for bool function to ``len-as-condition``
* Add ``simplifiable-condition`` check for extraneous constants in conditionals using and/or.
* Add ``condition-evals-to-constant`` check for conditionals using and/or that evaluate to a constant.
Close #3407
* Changed setup.py to work with [distlib](https://pypi.org/project/distlib)
Close #3555
* New check: ``consider-using-generator``
This check warns when a comprehension is used inside an ``any`` or ``all`` function,
since it is unnecessary and should be replaced by a generator instead.
Using a generator would be less code and way faster.
Close #3165
* Add Github Actions to replace Travis and AppVeyor in the future
What's New in Pylint 2.6.1?
===========================
* Astroid version has been set as < 2.5
Close #4093
What's New in Pylint 2.6.0?
===========================
Release date: 2020-08-20
* Fix various scope-related bugs in ``undefined-variable`` checker
Close #1082, #3434, #3461
* bad-continuation and bad-whitespace have been removed, black or another formatter can help you with this better than Pylint
Close #246, #289, #638, #747, #1148, #1179, #1943, #2041, #2301, #2304, #2944, #3565
* The no-space-check option has been removed. It's no longer possible to consider empty line like a ``trailing-whitespace`` by using clever options
Close #1368
* ``missing-kwoa`` is no longer emitted when dealing with overload functions
Close #3655
* mixed-indentation has been removed, it is no longer useful since TabError is included directly in python3
Close #2984 #3573
* Add ``super-with-arguments`` check for flagging instances of Python 2 style super calls.
* Add an faq detailing which messages to disable to avoid duplicates w/ other popular linters
* Fix superfluous-parens false-positive for the walrus operator
Close #3383
* Fix ``fail-under`` not accepting floats
* Fix a bug with ``ignore-docstrings`` ignoring all lines in a module
* Fix ``pre-commit`` config that could lead to undetected duplicate lines of code
* Fix a crash in parallel mode when the module's filepath is not set
Close #3564
* Add ``raise-missing-from`` check for exceptions that should have a cause.
* Support both isort 4 and isort 5. If you have pinned isort 4 in your projet requirements, nothing changes. If you use isort 5, though, note that the ``known-standard-library`` option is not interpreted the same in isort 4 and isort 5 (see the migration guide in isort documentation for further details). For compatibility's sake for most pylint users, the ``known-standard-library`` option in pylint now maps to ``extra-standard-library`` in isort 5. If you really want what ``known-standard-library`` now means in isort 5, you must disable the ``wrong-import-order`` check in pylint and run isort manually with a proper isort configuration file.
Close #3722
What's New in Pylint 2.5.4?
===========================
* Fix a crash caused by not guarding against ``InferenceError`` when calling ``infer_call_result``
Close #3690
* Fix a crash in parallel mode when the module's filepath is not set
Close #3564
What's New in Pylint 2.5.3?
===========================
Release date: 2020-06-8
* Fix a regression where disable comments that have checker names with numbers in them are not parsed correctly
Close #3666
* ``property-with-parameters`` properly handles abstract properties
Close #3600
* ``continue-in-finally`` no longer emitted on Python 3.8 where it's now valid
Close #3612
* Fix a regression where messages with dash are not fully parsed
Close #3604
* In a TOML configuration file, it's now possible to use rich (non-string) types, such as list, integer or boolean instead of strings. For example, one can now define a *list* of message identifiers to enable like this::
enable = [
"use-symbolic-message-instead",
"useless-suppression",
]
Close #3538
* Fix a regression where the score was not reported with multiple jobs
Close #3547
* Protect against ``AttributeError`` when checking ``cell-var-from-loop``
Close #3646
What's New in Pylint 2.5.2?
===========================
Release date: 2020-05-05
* ``pylint.Run`` accepts ``do_exit`` as a deprecated parameter
Close #3590
What's New in Pylint 2.5.1?
===========================
Release date: 2020-05-05
* Fix a crash in ``method-hidden`` lookup for unknown base classes
Close #3527
* Revert pylint.Run's ``exit`` parameter to ``do_exit``
This has been inadvertently changed several releases ago to ``do_exit``.
Close #3533
* ``no-value-for-parameter`` variadic detection has improved for assign statements
Close #3563
* Allow package files to be properly discovered with multiple jobs
Close #3524
* Allow linting directories without ``__init__.py`` which was a regression in 2.5.
Close #3528
What's New in Pylint 2.5.0?
===========================
Release date: 2020-04-27
* Fix a false negative for ``undefined-variable`` when using class attribute in comprehension.
Close #3494
* Fix a false positive for ``undefined-variable`` when using class attribute in decorator or as type hint.
Close #511
Close #1976
* Remove HTML quoting of messages in JSON output.
Close #2769
* Adjust the ``invalid-name`` rule to work with non-ASCII identifiers and add the ``non-ascii-name`` rule.
Close #2725
* Positional-only arguments are taken in account for ``useless-super-delegation``
* ``unidiomatic-typecheck`` is no longer emitted for ``in`` and ``not in`` operators
Close #3337
* Positional-only argument annotations are taken in account for ``unused-import``
Close #3462
* Add a command to list available extensions.
* Allow used variables to be properly consumed when different checks are enabled / disabled
Close #3445
* Fix dangerous-default-value rule to account for keyword argument defaults
Close #3373
* Fix a false positive of ``self-assigning-variable`` on tuple unpacking.
Close #3433
* ``no-self-use`` is no longer emitted for typing stubs.
Close #3439
* Fix a false positive for ``undefined-variable`` when ``__class__`` is used
Close #3090
* Emit ``invalid-name`` for variables defined in loops at module level.
Close #2695
* Add a check for cases where the second argument to ``isinstance`` is not a type.
Close #3308
* Add 'notes-rgx' option, to be used for fixme check.
Close #2874
* ``function-redefined`` exempts function redefined on a condition.
Close #2410
* ``typing.overload`` functions are exempted from docstring checks
Close #3350
* Emit ``invalid-overridden-method`` for improper async def overrides.
Close #3355
* Do not allow ``python -m pylint ...`` to import user code
``python -m pylint ...`` adds the current working directory as the first element
of ``sys.path``. This opens up a potential security hole where ``pylint`` will import
user level code as long as that code resides in modules having the same name as stdlib
or pylint's own modules.
Close #3386
* Add ``dummy-variables-rgx`` option for ``_redeclared-assigned-name`` check.
Close #3341
* Fixed graph creation for relative paths
* Add a check for asserts on string literals.
Close #3284
* ``not in`` is considered iterating context for some of the Python 3 porting checkers.
* A new check ``inconsistent-quotes`` was added.
* Add a check for non string assignment to __name__ attribute.
Close #583
* ``__pow__``, ``__imatmul__``, ``__trunc__``, ``__floor__``, and ``__ceil__`` are recognized as special method names.
Close #3281
* Added errors for protocol functions when invalid return types are detected.
E0304 (invalid-bool-returned): __bool__ did not return a bool
E0305 (invalid-index-returned): __index__ did not return an integer
E0306 (invalid-repr-returned): __repr__ did not return a string
E0307 (invalid-str-returned): __str__ did not return a string
E0308 (invalid-bytes-returned): __bytes__ did not return a string
E0309 (invalid-hash-returned): __hash__ did not return an integer
E0310 (invalid-length-hint-returned): __length_hint__ did not return a non-negative integer
E0311 (invalid-format-returned): __format__ did not return a string
E0312 (invalid-getnewargs-returned): __getnewargs__ did not return a tuple
E0313 (invalid-getnewargs-ex-returned): __getnewargs_ex__ did not return a tuple of the form (tuple, dict)
Close #560
* ``missing-*-docstring`` can look for ``__doc__`` assignments.
Close #3301
* ``undefined-variable`` can now find undefined loop iterables
Close #498
* ``safe_infer`` can infer a value as long as all the paths share the same type.
Close #2503
* Add a --fail-under <score> flag, also configurable in a .pylintrc file. If the final score is more than the specified score, it's considered a success and pylint exits with exitcode 0. Otherwise, it's considered a failure and pylint exits with its current exitcode based on the messages issued.
Close #2242
* Don't emit ``line-too-long`` for multilines when ``disable=line-too-long`` comment stands at their end
Close #2957
* Fixed an ``AttributeError`` caused by improper handling of ``dataclasses`` inference in ``pyreverse``
Close #3256
* Do not exempt bare except from ``undefined-variable`` and similar checks
If a node was wrapped in a ``TryExcept``, ``pylint`` was taking a hint
from the except handler when deciding to emit or not a message.
We were treating bare except as a fully fledged ignore but only
the corresponding exceptions should be handled that way (e.g. ``NameError`` or ``ImportError``)
Close #3235
* No longer emit ``assignment-from-no-return`` when a function only raises an exception
Close #3218
* Allow import aliases to exempt ``import-error`` when used in type annotations.
Close #3178
* ``Ellipsis` is exempted from ``multiple-statements`` for function overloads.
Close #3224
* No longer emit ``invalid-name`` for non-constants found at module level.
Pylint was taking the following statement from PEP-8 too far, considering
all module level variables as constants, which is not what the statement is saying:
`Constants are usually defined on a module level and written in
all capital letters with underscores separating words.`
Close #3111
Close #3132
* Allow ``implicit-str-concat-in-sequence`` to be emitted for string juxtaposition
Close #3030
* ``implicit-str-concat-in-sequence`` was renamed ``implicit-str-concat``
* The ``json`` reporter no longer bypasses ``redirect_stdout``. Close #3227
* Move ``NoFileError``, ``OutputLine``, ``FunctionalTestReporter``,
``FunctionalTestFile``, ``LintModuleTest`` and related methods from
``test_functional.py`` to ``pylint.testutils`` to help testing for 3rd
party pylint plugins.
* Can read config from a setup.cfg or pyproject.toml file.
Close #617
* Fix exception-escape false positive with generators
Close #3128
* ``inspect.getargvalues`` is no longer marked as deprecated.
* A new check ``f-string-without-interpolation`` was added
Close #3190
* Flag mutable ``collections.*`` utilities as dangerous defaults
Close #3183
* ``docparams`` extension supports multiple types in raises sections.
Multiple types can also be separated by commas in all valid sections.
Closes #2729
* Allow parallel linting when run under Prospector
* Fixed false positives of ``method-hidden`` when a subclass defines the method that is being hidden.
Closes #414
* Python 3 porting mode is 30-50% faster on most codebases
* Python 3 porting mode no longer swallows syntax errors