chore(deps): update dependency pylint to v4 #56

renovate · 2025-10-13T03:41:20Z

This PR contains the following updates:

Package	Change	Age	Confidence
pylint (changelog)	`^3.2.6` -> `^4.0.0`

Release Notes

pylint-dev/pylint (pylint)

`v4.0.1`

Compare Source

What's new in Pylint 4.0.1?

Release date: 2025-10-14

False Positives Fixed

Exclude __all__ and __future__.annotations from unused-variable.

Closes #10019
Fix false-positive for bare-name-capture-pattern if a case guard is used.

Closes #10647
Check enums created with the Enum() functional syntax to pass against the
--class-rgx for the invalid-name check, like other enums.

Closes #10660

`v4.0.0`

Compare Source

Pylint now supports Python 3.14.
Pylint's inference engine (astroid) is now much more precise,
understanding implicit booleanness and ternary expressions. (Thanks @zenlyj!)

Consider this example:

class Result:
    errors: dict | None = None

result = Result()
if result.errors:
    result.errors[field_key]

### inference engine understands result.errors cannot be None
### pylint no longer raises unsubscriptable-object

The required astroid version is now 4.0.0. See the astroid changelog for additional fixes, features, and performance improvements applicable to pylint.

Handling of invalid-name at the module level was patchy. Now,
module-level constants that are reassigned are treated as variables and checked
against --variable-rgx rather than --const-rgx. Module-level lists,
sets, and objects can pass against either regex.

Here, LIMIT is reassigned, so pylint only uses --variable-rgx:

LIMIT = 500  # [invalid-name]
if sometimes:
    LIMIT = 1  # [invalid-name]

If this is undesired, refactor using exclusive assignment so that it is
evident that this assignment happens only once:

if sometimes:
    LIMIT = 1
else:
    LIMIT = 500  # exclusive assignment: uses const regex, no warning

Lists, sets, and objects still pass against either const-rgx or variable-rgx
even if reassigned, but are no longer completely skipped:

MY_LIST = []
my_list = []
My_List = []  # [invalid-name]

Remember to adjust the regexes and allow lists to your liking.

Breaking Changes

invalid-name now distinguishes module-level constants that are assigned only once
from those that are reassigned and now applies --variable-rgx to the latter. Values
other than literals (lists, sets, objects) can pass against either the constant or
variable regexes (e.g. "LOGGER" or "logger" but not "LoGgEr").

Remember that --good-names or --good-names-rgxs can be provided to explicitly
allow good names.

Closes #3585
The unused pylintrc argument to PyLinter.__init__() is deprecated
and will be removed.

Refs #6052
Commented out code blocks such as # bar() # TODO: remove dead code will no longer emit fixme.

Refs #9255
pyreverse Run was changed to no longer call sys.exit() in its __init__.
You should now call Run(args).run() which will return the exit code instead.
Having a class that always raised a SystemExit exception was considered a bug.

Normal usage of pyreverse through the CLI will not be affected by this change.

Refs #9689
The suggestion-mode option was removed, as pylint now always emits user-friendly hints instead
of false-positive error messages. You should remove it from your conf if it's defined.

Refs #9962
The async.py checker module has been renamed to async_checker.py since async is a Python keyword
and cannot be imported directly. This allows for better testing and extensibility of the async checker functionality.

Refs #10071
The message-id of continue-in-finally was changed from E0116 to W0136. The warning is
now emitted for every Python version since it will raise a syntax warning in Python 3.14.
See PEP 765 - Disallow return/break/continue that exit a finally block.

Refs #10480
Removed support for nmp.NaN alias for numpy.NaN being recognized in ':ref:nan-comparison'. Use np or numpy instead.

Refs #10583
Version requirement for isort has been bumped to >=5.0.0.
The internal compatibility for older isort versions exposed via pylint.utils.IsortDriver has
been removed.

Refs #10637

New Features

comparison-of-constants now uses the unicode from the ast instead of reformatting from
the node's values preventing some bad formatting due to utf-8 limitation. The message now uses
" instead of ' to better work with what the python ast returns.

Refs #8736
Enhanced pyreverse to properly distinguish between UML relationship types (association, aggregation, composition) based on object ownership semantics. Type annotations without assignment are now treated as associations, parameter assignments as aggregations, and object instantiation as compositions.

Closes #9045
Closes #9267
The fixme check can now search through docstrings as well as comments, by using
check-fixme-in-docstring = true in the [tool.pylint.miscellaneous] section.

Closes #9255
The use-implicit-booleaness-not-x checks now distinguish between comparisons
used in boolean contexts and those that are not, enabling them to provide more accurate refactoring suggestions.

Closes #9353
The verbose option now outputs the filenames of the files that have been checked.
Previously, it only included the number of checked and skipped files.

Closes #9357
colorized reporter now colorizes messages/categories that have been configured as fail-on in red inverse.
This makes it easier to quickly find the errors that are causing pylint CI job failures.

Closes #9898
Enhanced support for @property decorator in pyreverse to correctly display return types of annotated properties when generating class diagrams.

Closes #10057
Add --max-depth option to pyreverse to control diagram complexity. A depth of 0 shows only top-level packages, 1 shows one level of subpackages, etc.
This helps manage visualization of large codebases by limiting the depth of displayed packages and classes.

Refs #10077
Handle deferred evaluation of annotations in Python 3.14.

Closes #10149
Enhanced pyreverse to properly detect aggregations for comprehensions (list, dict, set, generator).

Closes #10236
pyreverse: add support for colorized output when using output format mmd (MermaidJS) and html.

Closes #10242
pypy 3.11 is now officially supported.

Refs #10287
Add support for Python 3.14.

Refs #10467
Add naming styles for ParamSpec and TypeVarTuple that align with the TypeVar style.

Refs #10541

New Checks

Add match-statements checker and the following message:
bare-name-capture-pattern.
This will emit an error message when a name capture pattern is used in a match statement which would make the remaining patterns unreachable.
This code is a SyntaxError at runtime.

Closes #7128
Add new check async-context-manager-with-regular-with to detect async context managers used with regular with statements instead of async with.

Refs #10408
Add break-in-finally warning. Using break inside the finally clause
will raise a syntax warning in Python 3.14.
See PEP 765 - Disallow return/break/continue that exit a finally block <https://peps.python.org/pep-0765/>_.

Refs #10480
Add new checks for invalid uses of class patterns in :keyword:match.
- :ref:invalid-match-args-definition is emitted if :py:data:object.__match_args__ isn't a tuple of strings.
- :ref:too-many-positional-sub-patterns if there are more positional sub-patterns than specified in :py:data:object.__match_args__.
- :ref:multiple-class-sub-patterns if there are multiple sub-patterns for the same attribute.
Refs #10559
Add additional checks for suboptimal uses of class patterns in :keyword:match.
- :ref:match-class-bind-self is emitted if a name is bound to self instead of
  using an as pattern.
- :ref:match-class-positional-attributes is emitted if a class pattern has positional
  attributes when keywords could be used.
Refs #10587
Add a consider-math-not-float message. float("nan") and float("inf") are slower
than their counterpart math.inf and math.nan by a factor of 4 (notwithstanding
the initial import of math) and they are also not well typed when using mypy.
This check also catches typos in float calls as a side effect.

The :ref:pylint.extensions.code_style need to be activated for this check to work.

Refs #10621

False Positives Fixed

Fix a false positive for used-before-assignment when a variable defined under
an if and via a named expression (walrus operator) is used later when guarded
under the same if test.

Closes #10061
Fix :ref:no-name-in-module for members of concurrent.futures with Python 3.14.

Closes #10632

False Negatives Fixed

Fix false negative for used-before-assignment when a TYPE_CHECKING import is used as a type annotation prior to erroneous usage.

Refs #8893
Match cases are now counted as edges in the McCabe graph and will increase the complexity accordingly.

Refs #9667
Check module-level constants with type annotations for invalid-name.
Remember to adjust const-naming-style or const-rgx to your liking.

Closes #9770
Fix false negative where function-redefined (E0102) was not reported for functions with a leading underscore.

Closes #9894
We now raise a logging-too-few-args for format string with no
interpolation arguments at all (i.e. for something like logging.debug("Awaiting process %s")
or logging.debug("Awaiting process {pid}")). Previously we did not raise for such case.

Closes #9999
Fix false negative for used-before-assignment when a function is defined inside a TYPE_CHECKING guard block and used later.

Closes #10028
Fix a false negative for possibly-used-before-assignment when a variable is conditionally defined
and later assigned to a type-annotated variable.

Closes #10421
Fix false negative for deprecated-module when a __import__ method is used instead of import sentence.

Refs #10453
Count match cases for too-many-branches check.

Refs #10542
Fix false-negative where :ref:unused-import was not reported for names referenced in a preceding global statement.

Refs #10633

Other Bug Fixes

When displaying unicode with surrogates (or other potential UnicodeEncodeError),
pylint will now display a '?' character (using encode(encoding="utf-8", errors="replace"))
instead of crashing. The functional tests classes are also updated to handle this case.

Closes #8736
Fixed unidiomatic-typecheck only checking left-hand side.

Closes #10217
Fix a crash caused by malformed format strings when using .format with keyword arguments.

Closes #10282
Fix false positive inconsistent-return-statements when using quit() or exit() functions.

Closes #10508
Fix a crash in :ref:nested-min-max when using builtins.min or builtins.max
instead of min or max directly.

Closes #10626
Fixed a crash in :ref:unnecessary-dict-index-lookup when the index of an enumerated list
was deleted inside a for loop.

Closes #10627

Other Changes

Remove support for launching pylint with Python 3.9.
Code that supports Python 3.9 can still be linted with the --py-version=3.9 setting.

Refs #10405

Internal Changes

Modified test framework to allow for different test output for different Python versions.

Refs #10382

`v3.3.9`

Compare Source

What's new in Pylint 3.3.9?

Release date: 2025-10-05

False Positives Fixed

Fix used-before-assignment for PEP 695 type aliases and parameters.

Closes #9815
No longer flag undeprecated functions in importlib.resources as deprecated.

Closes #10593
Fix false positive inconsistent-return-statements when using quit() or exit() functions.

Closes #10508
Fix false positive undefined-variable (E0602) for for-loop variable shadowing patterns like for item in item: when the variable was previously defined.

Closes #10562

Other Bug Fixes

Fixed crash in 'unnecessary-list-index-lookup' when starting an enumeration using
minus the length of an iterable inside a dict comprehension when the len call was only
made in this dict comprehension, and not elsewhere. Also changed the approach,
to use inference in all cases but the simple ones, so we don't have to fix crashes
one by one for arbitrarily complex expressions in enumerate.

Closes #10510

`v3.3.8`

Compare Source

What's new in Pylint 3.3.8?

Release date: 2025-08-09

This patch release includes an exceptional fix for a false negative issue. For details, see: #10482 (comment)

False Positives Fixed

Fix false positives for possibly-used-before-assignment when variables are exhaustively
assigned within a match block.

Closes #9668
Fix false positive for missing-raises-doc and missing-yield-doc when the method length is less than docstring-min-length.

Refs #10104
Fix a false positive for unused-variable when multiple except handlers bind the same name under a try block.

Closes #10426

False Negatives Fixed

Fix false-negative for used-before-assignment with from __future__ import annotations in function definitions.

Refs #10482

Other Bug Fixes

Fix a bug in Pyreverse where aggregations and associations were included in diagrams regardless of the selected --filter-mode (such as PUB_ONLY, ALL, etc.).

Closes #10373
Fix double underscores erroneously rendering as bold in pyreverse's Mermaid output.

Closes #10402

`v3.3.7`

Compare Source

What's new in Pylint 3.3.7?

Release date: 2025-05-04

False Positives Fixed

Comparisons between two calls to type() won't raise an unidiomatic-typecheck warning anymore, consistent with the behavior applied only for == previously.

Closes #10161

Other Bug Fixes

Fixed a crash when importing a class decorator that did not exist with the same name as a class attribute after the class definition.

Closes #10105
Fix a crash caused by malformed format strings when using .format with keyword arguments.

Closes #10282
Using a slice as a class decorator now raises a not-callable message instead of crashing. A lot of checks that dealt with decorators (too many to list) are now shortcut if the decorator can't immediately be inferred to a function or class definition.

Closes #10334

Other Changes

The algorithm used for no-member suggestions is now more efficient and cuts the
calculation when the distance score is already above the threshold.

Refs #10277

`v3.3.6`

Compare Source

What's new in Pylint 3.3.6?

Release date: 2025-03-20

False Positives Fixed

Fix a false positive for used-before-assignment when an inner function's return type
annotation is a class defined at module scope.

Closes #9391

`v3.3.5`

Compare Source

What's new in Pylint 3.3.5?

Release date: 2025-03-09

False Positives Fixed

Fix false positives for use-implicit-booleaness-not-comparison, use-implicit-booleaness-not-comparison-to-string
and use-implicit-booleaness-not-comparison-to-zero when chained comparisons are checked.

Closes #10065
Fix a false positive for invalid-getnewargs-ex-returned when the tuple or dict has been assigned to a name.

Closes #10208
Remove getopt and optparse from the list of deprecated modules.

Closes #10211

Other Bug Fixes

Fixed conditional import x.y causing false positive possibly-used-before-assignment.

Closes #10081
Fix a crash when something besides a class is found in an except handler.

Closes #10106
Fixed raising invalid-name when using camelCase for private methods with two leading underscores.

Closes #10189

Other Changes

Upload release assets to PyPI via Trusted Publishing.

Closes #10256

`v3.3.4`

Compare Source

Other Bug Fixes

Fixes "skipped files" count calculation; the previous method was displaying an arbitrary number.

Closes #10073
Fixes a crash that occurred when pylint was run in a container on a host with cgroupsv2 and restrictions on CPU usage.

Closes #10103
Relaxed the requirements for isort so pylint can benefit from isort 6.

Closes #10203

`v3.3.3`

Compare Source

What's new in Pylint 3.3.3?

Release date: 2024-12-23

False Positives Fixed

Fix false positives for undefined-variable for classes using Python 3.12
generic type syntax.

Closes #9335
Fix a false positive for use-implicit-booleaness-not-len. No lint should be emitted for
generators (len is not defined for generators).

Refs #10100

Other Bug Fixes

Fix Unable to import 'collections.abc' (import-error) on Python 3.13.1.

Closes #10112

`v3.3.2`

Compare Source

False Positives Fixed

Fix a false positive for potential-index-error when an indexed iterable
contains a starred element that evaluates to more than one item.

Closes #10076

Other Bug Fixes

Fixes the issue with --source-root option not working when the source files are in a subdirectory of the source root (e.g. when using a /src layout).

Closes #10026

`v3.3.1`

Compare Source

What's new in Pylint 3.3.1?

Release date: 2024-09-24

False Positives Fixed

Fix regression causing some f-strings to not be inferred as strings.

Closes #9947

`v3.3.0`

Compare Source

Release date: 2024-09-20

Changes requiring user actions

We migrated symilar to argparse, from getopt, so the error and help output changed
(for the better). We exit with 2 instead of sometime 1, sometime 2. The error output
is not captured by the runner anymore. It's not possible to use a value for the
boolean options anymore (--ignore-comments 1 should become --ignore-comments).

Refs #9731

New Features

Add new declare-non-slot error which reports when a class has a __slots__ member and a type hint on the class is not present in __slots__.

Refs #9499

New Checks

Added too-many-positional-arguments to allow distinguishing the configuration for too many
total arguments (with keyword-only params specified after *) from the configuration
for too many positional-or-keyword or positional-only arguments.

As part of evaluating whether this check makes sense for your project, ensure you
adjust the value of --max-positional-arguments.

Closes #9099
Add using-exception-groups-in-unsupported-version and
using-generic-type-syntax-in-unsupported-version for uses of Python 3.11+ or
3.12+ features on lower supported versions provided with --py-version.

Closes #9791
Add using-assignment-expression-in-unsupported-version for uses of := (walrus operator)
on Python versions below 3.8 provided with --py-version.

Closes #9820
Add using-positional-only-args-in-unsupported-version for uses of positional-only args on
Python versions below 3.8 provided with --py-version.

Closes #9823
Add unnecessary-default-type-args to the typing extension to detect the use
of unnecessary default type args for typing.Generator and typing.AsyncGenerator.

Refs #9938

False Negatives Fixed

Fix computation of never-returning function: Never is handled in addition to NoReturn, and priority is given to the explicit --never-returning-functions option.

Closes #7565.
Fix a false negative for await-outside-async when await is inside Lambda.

Refs #9653
Fix a false negative for duplicate-argument-name by including positional-only, *args and **kwargs arguments in the check.

Closes #9669
Fix false negative for multiple-statements when multiple statements are present on else and finally lines of try.

Refs #9759
Fix false negatives when isinstance does not have exactly two arguments.
pylint now emits a too-many-function-args or no-value-for-parameter
appropriately for isinstance calls.

Closes #9847

Other Bug Fixes

--enable with --disable=all now produces an error, when an unknown msg code is used. Internal pylint messages are no longer affected by --disable=all.

Closes #9403
Impossible to compile regexes for paths in the configuration or argument given to pylint won't crash anymore but
raise an argparse error and display the error message from re.compile instead.

Closes #9680
Fix a bug where a tox.ini file with pylint configuration was ignored and it exists in the current directory.

.cfg and .ini files containing a Pylint configuration may now use a section named [pylint]. This enhancement impacts the scenario where these file types are used as defaults when they are present and have not been explicitly referred to, using the --rcfile option.

Closes #9727
Improve file discovery for directories that are not python packages.

Closes #9764

Other Changes

Remove support for launching pylint with Python 3.8.
Code that supports Python 3.8 can still be linted with the --py-version=3.8 setting.

Refs #9774
Add support for Python 3.13.

Refs #9852

Internal Changes

All variables, classes, functions and file names containing the word 'similar', when it was,
in fact, referring to 'symilar' (the standalone program for the duplicate-code check) were renamed
to 'symilar'.

Closes #9734
Remove old-style classes (Python 2) code and remove check for new-style class since everything is new-style in Python 3. Updated doc for exception checker to remove reference to new style class.

Refs #9925

Configuration

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🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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This PR was generated by Mend Renovate. View the repository job log.

renovate · 2025-10-13T03:41:21Z

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

any of the package files in this branch needs updating, or
the branch becomes conflicted, or
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The artifact failure details are included below:

File name: poetry.lock

Updating dependencies
Resolving dependencies...


The current project's supported Python range (>=3.8,<4.0) is not compatible with some of the required packages Python requirement:
  - pylint requires Python >=3.10.0, so it will not be satisfied for Python >=3.8,<3.10.0
  - pylint requires Python >=3.10.0, so it will not be satisfied for Python >=3.8,<3.10.0

Because no versions of pylint match >4.0.0,<4.0.1 || >4.0.1,<5.0.0
 and pylint (4.0.0) requires Python >=3.10.0, pylint is forbidden.
So, because pylint (4.0.1) requires Python >=3.10.0
 and encryption-helper depends on pylint (^4.0.0), version solving failed.

  • Check your dependencies Python requirement: The Python requirement can be specified via the `python` or `markers` properties
    
    For pylint, a possible solution would be to set the `python` property to ">=3.10.0,<4.0"
    For pylint, a possible solution would be to set the `python` property to ">=3.10.0,<4.0"

    https://python-poetry.org/docs/dependency-specification/#python-restricted-dependencies,
    https://python-poetry.org/docs/dependency-specification/#using-environment-markers

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Release Notes

What's new in Pylint 4.0.1?

False Positives Fixed

Breaking Changes

New Features

New Checks

False Positives Fixed

False Negatives Fixed

Other Bug Fixes

Other Changes

Internal Changes

What's new in Pylint 3.3.9?

False Positives Fixed

Other Bug Fixes

What's new in Pylint 3.3.8?

False Positives Fixed

False Negatives Fixed

Other Bug Fixes

What's new in Pylint 3.3.7?

False Positives Fixed

Other Bug Fixes

Other Changes

What's new in Pylint 3.3.6?

False Positives Fixed

What's new in Pylint 3.3.5?

False Positives Fixed

Other Bug Fixes

Other Changes

Other Bug Fixes

What's new in Pylint 3.3.3?

False Positives Fixed

Other Bug Fixes

False Positives Fixed

Other Bug Fixes

What's new in Pylint 3.3.1?

False Positives Fixed

Changes requiring user actions

New Features

New Checks

False Negatives Fixed

Other Bug Fixes

Other Changes

Internal Changes

Configuration

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