chore(deps): update dependency pylint to v3
This MR contains the following updates:
Package | Update | Change |
---|---|---|
pylint (changelog) | major |
==2.16.1 -> ==3.1.0
|
Release Notes
pylint-dev/pylint (pylint)
v3.1.0
Two new checks--use-yield-from
, deprecated-attribute
-- and a smattering of bug fixes.
New Features
-
Skip
consider-using-join
check for non-empty separators if ansuggest-join-with-non-empty-separator
option is set tono
.Closes #8701
-
Discover
.pyi
files when linting.These can be ignored with the
ignore-patterns
setting.Closes #9097
-
Check
TypeAlias
andTypeVar
(PEP 695) nodes forinvalid-name
.Refs #9196
-
Support for resolving external toml files named pylintrc.toml and .pylintrc.toml.
Closes #9228
-
Check for
.clear
,.discard
,.pop
andremove
methods being called on a set while it is being iterated over.Closes #9334
New Checks
-
New message
use-yield-from
added to the refactoring checker. This message is emitted when yielding from a loop can be replaced byyield from
.Closes #9229.
-
Added a
deprecated-attribute
message to check deprecated attributes in the stdlib.Closes #8855
False Positives Fixed
-
Fixed false positive for
inherit-non-class
for generic Protocols.Closes #9106
-
Exempt
TypedDict
fromtyping_extensions
fromtoo-many-ancestor
checks.Refs #9167
False Negatives Fixed
-
Extend broad-exception-raised and broad-exception-caught to except*.
Closes #8827
-
Fix a false-negative for unnecessary if blocks using a different than expected ordering of arguments.
Closes #8947.
Other Bug Fixes
-
Improve the message provided for wrong-import-order check. Instead of the import statement ("import x"), the message now specifies the import that is out of order and which imports should come after it. As reported in the issue, this is particularly helpful if there are multiple imports on a single line that do not follow the PEP8 convention.
The message will report imports as follows: For "import X", it will report "(standard/third party/first party/local) import X" For "import X.Y" and "from X import Y", it will report "(standard/third party/first party/local) import X.Y" The import category is specified to provide explanation as to why pylint has issued the message and guidence to the developer on how to fix the problem.
Closes #8808
Other Changes
-
Print how many files were checked in verbose mode.
Closes #8935
-
Fix a crash when an enum class which is also decorated with a
dataclasses.dataclass
decorator is defined.Closes #9100
Internal Changes
-
Update astroid version to 3.1.0.
Refs #9457
v3.0.4
False Positives Fixed
-
used-before-assignment
is no longer emitted when using a name in a loop and depending on an earlier name assignment in anexcept
block paired withelse: continue
.Closes #6804
-
Avoid false positives for
no-member
involving function attributes supplied by decorators.Closes #9246
-
Fixed false positive nested-min-max for nested lists.
Closes #9307
-
Fix false positive for
used-before-assignment
in afinally
block when assignments took place in both thetry
block and each exception handler.Closes #9451
Other Bug Fixes
-
Catch incorrect ValueError
"generator already executing"
for Python 3.12.0 - 3.12.2. This is fixed upstream in Python 3.12.3.Closes #9138
v3.0.3
What's new in Pylint 3.0.3?
Release date: 2023-12-11
False Positives Fixed
-
Fixed false positive for
unnecessary-lambda
when the call has keyword arguments but not the lambda.Closes #9148
-
Fixed incorrect suggestion for shallow copy in unnecessary-comprehension
Example of the suggestion: #pylint: disable=missing-module-docstring a = [1, 2, 3] b = [x for x in a] b[0] = 0 print(a) # [1, 2, 3]
After changing b = [x for x in a] to b = a based on the suggestion, the script now prints [0, 2, 3]. The correct suggestion should be use list(a) to preserve the original behavior.
Closes #9172
-
Fix false positives for
undefined-variable
andunused-argument
for classes and functions using Python 3.12 generic type syntax.Closes #9193
-
Fixed
pointless-string-statement
false positive for docstrings on Python 3.12 type aliases.Closes #9268
-
Fix false positive for
invalid-exception-operation
when concatenating tuples of exception types.Closes #9288
Other Bug Fixes
-
Fix a bug where pylint was unable to walk recursively through a directory if the directory has an
__init__.py
file.Closes #9210
v3.0.2
False Positives Fixed
-
Fix
used-before-assignment
false positive for generic type syntax (PEP 695, Python 3.12).Closes #9110
Other Bug Fixes
-
Escape special symbols and newlines in messages.
Closes #7874
-
Fixes suggestion for
nested-min-max
for expressions with additive operators, list and dict comprehensions.Closes #8524
-
Fixes ignoring conditional imports with
ignore-imports=y
.Closes #8914
-
Emit
inconsistent-quotes
for f-strings with 3.12 interpreter only if targeting pre-3.12 versions.Closes #9113
v3.0.1
False Positives Fixed
-
Fixed false positive for
inherit-non-class
for generic Protocols.Closes #9106
Other Changes
-
Fix a crash when an enum class which is also decorated with a
dataclasses.dataclass
decorator is defined.Closes #9100
v3.0.0
Pylint now support python 3.12 officially.
This long anticipated major version also provides some important usability and performance improvements, along with enacting necessary breaking changes and long-announced deprecations. The documentation of each message with an example is very close too.
The required astroid version is now 3.0.0. See the astroid changelog for additional fixes, features, and performance improvements applicable to pylint.
Our code is now fully typed. The invalid-name message no longer checks for a minimum length of 3 characters by default. Dependencies like wrapt or setuptools were removed.
A new json2 reporter has been added. It features an enriched output that is easier to parse and provides more info, here's a sample output.
{
"messages": [
{
"type": "convention",
"symbol": "line-too-long",
"message": "Line too long (1/2)",
"messageId": "C0301",
"confidence": "HIGH",
"module": "0123",
"obj": "",
"line": 1,
"column": 0,
"endLine": 1,
"endColumn": 4,
"path": "0123",
"absolutePath": "0123"
}
],
"statistics": {
"messageTypeCount": {
"fatal": 0,
"error": 0,
"warning": 0,
"refactor": 0,
"convention": 1,
"info": 0
},
"modulesLinted": 1,
"score": 5.0
}
}
Breaking Changes
-
Enabling or disabling individual messages will now take effect even if an
--enable=all
ordisable=all
follows in the same configuration file (or on the command line).This means for the following example,
fixme
messages will now be emitted:pylint my_module --enable=fixme --disable=all
To regain the prior behavior, remove the superfluous earlier option.
Closes #3696
-
Remove support for launching pylint with Python 3.7. Code that supports Python 3.7 can still be linted with the
--py-version=3.7
setting.Refs #6306
-
Disables placed in a
try
block now apply to theexcept
block. Previously, they only happened to do so in the presence of anelse
clause.Refs #7767
-
pyreverse
now uses a new default color palette that is more colorblind friendly. The color scheme is taken fromPaul Tol's Notes <https://personal.sron.nl/~pault/>
_. If you prefer other colors, you can use the--color-palette
option to specify custom colors.Closes #8251
-
Everything related to the
__implements__
construct was removed. It was based on PEP245 that was proposed in 2001 and rejected in 2006.The capability from pyreverse to take
__implements__
into account when generating diagrams was also removed.Refs #8404
-
pyreverse
: Support for the.vcg
output format (Visualization of Compiler Graphs) has been dropped.Closes #8416
-
The warning when the now useless old pylint cache directory (pylint.d) was found was removed. The cache dir is documented in
the FAQ <https://pylint.readthedocs.io/en/latest/faq.html#where-is-the-persistent-data-stored-to-compare-between-successive-runs>
_.Refs #8462
-
Following a deprecation period,
pylint.config.PYLINTRC
was removed. Use thepylint.config.find_default_config_files
generator instead.Closes #8862
Changes requiring user actions
-
The
invalid-name
message no longer checks for a minimum length of 3 characters by default. (This was an unadvertised commingling of concerns between casing and name length, and users regularly reported this to be surprising.)If checking for a minimum length is still desired, it can be regained in two ways:
-
If you are content with a
disallowed-name
message (instead ofinvalid-name
), then simply add the optionbad-names-rgxs="^..?$"
, which will fail 1-2 character-long names. (Ensure you enabledisallowed-name
.) -
If you would prefer an
invalid-name
message to be emitted, or would prefer finer-grained control over the circumstances in which messages are emitted (classes vs. methods, etc.), then avail yourself of the regex options describedhere <https://pylint.readthedocs.io/en/stable/user_guide/configuration/all-options.html#main-checker>
*. (In particular, take note of the commented out options in the "example configuration" given at the bottom of the section.) The prior regexes can be found in thepull request <https://github.com/pylint-dev/pylint/pull/8813>
* that removed the length requirements.
Closes #2018
-
-
The compare to empty string checker (
pylint.extensions.emptystring
) and the compare to zero checker (pylint.extensions.compare-to-zero
) have been removed and their checks are now part of the implicit booleaness checker:-
compare-to-zero
was renameduse-implicit-booleaness-not-comparison-to-zero
andcompare-to-empty-string
was renameduse-implicit-booleaness-not-comparison-to-string
and they now need to be enabled explicitly. -
The
pylint.extensions.emptystring
andpylint.extensions.compare-to-zero
extensions no longer exist and need to be removed from theload-plugins
option. -
Messages related to implicit booleaness were made more explicit and actionable. This permits to make their likeness explicit and will provide better performance as they share most of their conditions to be raised.
Closes #6871
-
-
epylint was removed. It now lives at: https://github.com/emacsorphanage/pylint.
Refs #7737
-
The
overgeneral-exceptions
option now only takes fully qualified names into account (builtins.Exception
notException
). If you overrode this option, you need to use the fully qualified name now.There's still a warning, but it will be removed in 3.1.0.
Refs #8411
-
Following a deprecation period, it's no longer possible to use
MASTER
ormaster
as configuration section insetup.cfg
ortox.ini
. It's bad practice to not start a section title with the tool name. Please usepylint.main
instead.Refs #8465
-
Package stats are now printed when running Pyreverse and a
--verbose
flag was added to get the original output with parsed modules. You might need to activate the verbose option if you want to keep the old output.Closes #8973
New Features
-
A new
json2
reporter has been added. It features a more enriched output that is easier to parse and provides more info.Compared to
json
the only changes are that messages are now under the"messages"
key and that"message-id"
now follows the camelCase convention and is renamed to"messageId"
. The new reporter also reports the "score" of the modules you linted as defined by theevaluation
option and provides statistics about the modules you linted.We encourage users to use the new reporter as the
json
reporter will no longer be maintained.Closes #4741
-
In Pyreverse package dependency diagrams, show when a module imports another only for type-checking.
Closes #8112
-
Add new option (
--show-stdlib
,-L
) topyreverse
. This is similar to the behavior of--show-builtin
in that standard library modules are now not included by default, and this option will include them.Closes #8181
-
Add Pyreverse option to exclude standalone nodes from diagrams with
--no-standalone
.Closes #8476
New Checks
-
Added
DataclassChecker
module andinvalid-field-call
checker to check for invalid dataclasses.field() usage.Refs #5159
-
Add
return-in-finally
to emit a message if a return statement was found in a finally clause.Closes #8260
-
Add a new checker
kwarg-superseded-by-positional-arg
to warn when a function is called with a keyword argument which shares a name with a positional-only parameter and the function contains a keyword variadic parameter dictionary. It may be surprising behaviour when the keyword argument is added to the keyword variadic parameter dictionary.Closes #8558
Extensions
-
Add new
prefer-typing-namedtuple
message to theCodeStyleChecker
to suggest rewriting calls tocollections.namedtuple
as classes inheriting fromtyping.NamedTuple
on Python 3.6+.Requires
load-plugins=pylint.extensions.code_style
andenable=prefer-typing-namedtuple
to be raised.Closes #8660
False Positives Fixed
-
Extend concept of "function ambiguity" in
safe_infer()
from differing number of function arguments to differing set of argument names.Solves false positives in
tensorflow
.Closes #3613
-
Fix
unused-argument
false positive when__new__
does not use all the arguments of__init__
.Closes #3670
-
Fix a false positive for
invalid-name
when a type-annotated class variable in anenum.Enum
class has no assigned value.Refs #7402
-
Fix
unused-import
false positive for usage ofsix.with_metaclass
.Closes #7506
-
Fix false negatives and false positives for
too-many-try-statements
,too-complex
, andtoo-many-branches
by correctly counting statements under atry
.Refs #7767
-
When checking for unbalanced dict unpacking in for-loops, Pylint will now test whether the length of each value to be unpacked matches the number of unpacking targets. Previously, Pylint would test the number of values for the loop iteration, which would produce a false unbalanced-dict-unpacking warning.
Closes #8156
-
Fix false positive for
used-before-assignment
when usage and assignment are guarded by the same test in different statements.Closes #8167
-
Adds
asyncSetUp
to the defaultdefining-attr-methods
list to silenceattribute-defined-outside-init
warning when usingunittest.IsolatedAsyncioTestCase
.Refs #8403
-
logging-not-lazy
is not longer emitted for explicitly concatenated string arguments.Closes #8410
-
Fix false positive for isinstance-second-argument-not-valid-type when union types contains None.
Closes #8424
-
invalid-name
now allows for integers intypealias
names:- now valid:
Good2Name
,GoodName2
. - still invalid:
_1BadName
.
Closes #8485
- now valid:
-
No longer consider
Union
as type annotation as type alias for naming checks.Closes #8487
-
unnecessary-lambda
no longer warns on lambdas which use its parameters in their body (other than the final arguments), e.g.lambda foo: (bar if foo else baz)(foo)
.Closes #8496
-
Fixed
unused-import
so that it observes thedummy-variables-rgx
option.Closes #8500
-
Union
typed variables without assignment are no longer treated asTypeAlias
.Closes #8540
-
Allow parenthesized implicitly concatenated strings when
check-str-concat-over-line-jumps
is enabled.Closes #8552.
-
Fix false positive for
positional-only-arguments-expected
when a function contains both a positional-only parameter that has a default value, and**kwargs
.Closes #8555
-
Fix false positive for
keyword-arg-before-vararg
when a positional-only parameter with a default value precedes*args
.Closes #8570
-
Fix false positive for
arguments-differ
when overriding__init_subclass__
.Closes #8919
-
Fix a false positive for
no-value-for-parameter
when a staticmethod is called in a class body.Closes #9036
False Negatives Fixed
-
Emit
used-before-assignment
when calling module-level functions before definition.Closes #1144
-
Apply
infer_kwarg_from_call()
to more checksThese mostly solve false negatives for various checks, save for one false positive for
use-maxsplit-arg
.Closes #7761
-
TypeAlias
variables defined in functions are now checked forinvalid-name
errors.Closes #8536
-
Fix false negative for
no-value-for-parameter
when a function, whose signature contains both a positional-only parametername
and also*kwargs
, is called with a keyword-argument forname
.Closes #8559
-
Fix a false negative for
too-many-arguments
by considering positional-only and keyword-only parameters.Closes #8667
-
Emit
assignment-from-no-return
for calls to builtin methods likedict.update()
. Calls tolist.sort()
now raiseassignment-from-no-return
rather thanassignment-from-none
for consistency. -
consider-using-augmented-assign
is now applied to dicts and lists as well.Closes #8959
Other Bug Fixes
-
Support
duplicate-code
message when parallelizing with--jobs
.Closes #374
-
Support
cyclic-import
message when parallelizing with--jobs
.Closes #4171
-
--jobs
can now be used with--load-plugins
.This had regressed in astroid 2.5.0.
Closes #4874
-
docparams extension considers type comments as type documentation.
Closes #6287
-
When parsing comma-separated lists of regular expressions in the config, ignore commas that are inside braces since those indicate quantifiers, not delineation between expressions.
Closes #7229
-
The
ignored-modules
option will now be correctly taken into account forno-name-in-module
.Closes #7578
-
sys.argv
is now always correctly considered as impossible to infer (instead of using the actual values given to pylint).Closes #7710
-
Avoid duplicative warnings for unqualified exception names in the
overgeneral-exceptions
setting when running with--jobs
.Closes #7774
-
Don't show class fields more than once in Pyreverse diagrams.
Closes #8189
-
Fix
used-before-assignment
false negative when TYPE_CHECKING imports are used in multiple scopes.Closes #8198
-
--clear-cache-post-run
now also clears LRU caches for pylint utilities holding references to AST nodes.Closes #8361
-
Fix a crash when
TYPE_CHECKING
is used without importing it.Closes #8434
-
Fix a
used-before-assignment
false positive when imports are made under theTYPE_CHECKING
else if branch.Closes #8437
-
Fix a regression of
preferred-modules
where a partial match was used instead of the required full match.Closes #8453
-
Fix a crash in pyreverse when "/" characters are used in the output filename e.g pyreverse -o png -p name/ path/to/project.
Closes #8504
-
Don't show arrows more than once in Pyreverse diagrams.
Closes #8522
-
Improve output of
consider-using-generator
message formin()
calls withdefault
keyword.Closes #8563
-
Fixed a crash when generating a configuration file:
tomlkit.exceptions.TOMLKitError: Can't add a table to a dotted key
caused by tomlkitv0.11.8
.Closes #8632
-
Fix a line break error in Pyreverse dot output.
Closes #8671
-
Fix a false positive for
method-hidden
when usingcached_property
decorator.Closes #8753
-
Dunder methods defined in lambda do not trigger
unnecessary-dunder-call
anymore, if they cannot be replaced by the non-dunder call.Closes #8769
-
Don't show duplicate type annotations in Pyreverse diagrams.
Closes #8888
-
Fixing inconsistent hashing issue in
BaseChecker
causing some reports not being exported.Closes #9001
-
Don't add
Optional
to|
annotations withNone
in Pyreverse diagrams.Closes #9014
-
Pyreverse doesn't show multiple class association arrows anymore, but only the strongest one.
Refs #9045
-
Prevented data loss in the linter stats for messages relating to the linter itself (e.g.
unknown-option-value
), fixing problems with score, fail-on, etc.Closes #9059
-
Fix crash in refactoring checker when unary operand used with variable in for loop.
Closes #9074
Other Changes
-
Pylint now exposes its type annotations.
-
Search for
pyproject.toml
recursively in parent directories up to a project or file system root. -
All code related to the optparse config parsing has been removed.
Refs #8405
-
Pylint now supports python 3.12.
Refs #8718
-
Add a CITATION.cff file to the root of the repository containing the necessary metadata to cite Pylint.
Closes #8760
-
Renamed the "unneeded-not" error into "unnecessary_negation" to be clearer.
Closes #8789
Internal Changes
-
get_message_definition
was removed from the base checker API. You can access message definitions through theMessageStore
.Refs #8401
-
Everything related to the
__implements__
construct was removed. It was based on PEP245 that was proposed in 2001 and rejected in 2006.All the classes inheriting
Interface
inpylint.interfaces
were removed.Checker
should only inheritBaseChecker
or any of the other checker types frompylint.checkers
.Reporter
should only inheritBaseReporter
.Refs #8404
-
modname
andmsg_store
are now required to be given inFileState
.collect_block_lines
has also been removed.Pylinter.current_name
cannot be null anymore.Refs #8407
-
Reporter.set_output
was removed in favor ofreporter.out = stream
.Refs #8408
-
A number of old utility functions and classes have been removed:
MapReduceMixin
: To make a checker reduce map data simply implementget_map_data
andreduce_map_data
.is_inside_lambda
: Useutils.get_node_first_ancestor_of_type(x, nodes.Lambda)
check_messages
: Useutils.only_required_for_messages
is_class_subscriptable_pep585_with_postponed_evaluation_enabled
: Useis_postponed_evaluation_enabled(node)
andis_node_in_type_annotation_context(node)
get_python_path
: assumption that there's always an init.py is not true since python 3.3 and is causing problems, particularly with PEP 420. Usediscover_package_path
and pass source root(s).fix_import_path
: Useaugmented_sys_path
and pass additionalsys.path
entries as an argument obtained fromdiscover_package_path
.get_global_option
: Usechecker.linter.config
to get all global options.Related private objects have been removed as well.
Refs #8409
-
colorize_ansi
now only accepts aMessageStyle
object.Refs #8412
-
Following a deprecation period,
Pylinter.check
now only works with sequences of strings, not strings.Refs #8463
-
Following a deprecation period,
ColorizedTextReporter
only acceptsColorMappingDict
.Refs #8464
-
Following a deprecation period,
MessageTest
'send_line
andend_col_offset
must be accurate in functional tests (for python 3.8 or above on cpython, and for python 3.9 or superior on pypy).Refs #8466
-
Following a deprecation period, the
do_exit
argument of theRun
class (and of the_Run
class in testutils) were removed.Refs #8472
-
Following a deprecation period, the
py_version
argument of theMessageDefinition.may_be_emitted
function is now required. The most likely solution is to use 'linter.config.py_version' if you need to keep using this function, or to use 'MessageDefinition.is_message_enabled' instead.Refs #8473
-
Following a deprecation period, the
OutputLine
class now requires the right number of argument all the time. The functional output can be regenerated automatically to achieve that easily.Refs #8474
-
Following a deprecation period,
is_typing_guard
,is_node_in_typing_guarded_import_block
andis_node_in_guarded_import_block
frompylint.utils
were removed: use a combination ofis_sys_guard
andin_type_checking_block
instead.Refs #8475
-
Following a deprecation period, the
location
argument of theMessage
class must now be aMessageLocationTuple
.Refs #8477
-
Following a deprecation period, the
check_single_file
function of thePylinter
is replaced byPylinter.check_single_file_item
.Refs #8478
Performance Improvements
-
pylint
runs (at least) ~5% faster after improvements toastroid
that make better use of the inference cache. -
- Optimize
is_trailing_comma()
. - Cache
class_is_abstract()
.
Refs #1954
- Optimize
-
Exit immediately if all messages are disabled.
Closes #8715
v2.17.7
2.17.7 is the last release before we only support pylint 3.0.0 or superior and python 3.8 or superior.
False Positives Fixed
-
Fix a regression in pylint 2.17.6 / astroid 2.15.7 causing various messages for code involving
TypeVar
.Closes #9069
Other Bug Fixes
-
Fix crash in refactoring checker when unary operand used with variable in for loop.
Closes #9074
v2.17.6
Other Bug Fixes
-
When parsing comma-separated lists of regular expressions in the config, ignore commas that are inside braces since those indicate quantifiers, not delineation between expressions.
Closes #7229
-
sys.argv
is now always correctly considered as impossible to infer (instead of using the actual values given to pylint).Closes #9047
-
Don't show class fields more than once in Pyreverse diagrams.
Closes #8189
-
Don't show arrows more than once in Pyreverse diagrams.
Closes #8522
-
Don't show duplicate type annotations in Pyreverse diagrams.
Closes #8888
-
Don't add
Optional
to|
annotations withNone
in Pyreverse diagrams.Closes #9014
v2.17.5
What's new in Pylint 2.17.5?
Release date: 2023-07-26
False Positives Fixed
-
Fix a false positive for
unused-variable
when there is an import in aif TYPE_CHECKING:
block andallow-global-unused-variables
is set tono
in the configuration.Closes #8696
-
Fix false positives generated when supplying arguments as
**kwargs
to IO calls like open().Closes #8719
-
Fix a false positive where pylint was ignoring method calls annotated as
NoReturn
during theinconsistent-return-statements
check.Closes #8747
-
Exempt parents with only type annotations from the
invalid-enum-extension
message.Closes #8830
Other Bug Fixes
-
Fixed crash when a call to
super()
was placed after an operator (e.g.not
).Closes #8554
-
Fix crash for
modified-while-iterating
checker when deleting members of a dict returned from a call.Closes #8598
-
Fix crash in
invalid-metaclass
check when a metaclass had duplicate bases.Closes #8698
-
Avoid
consider-using-f-string
on modulos with brackets in template.Closes #8720.
-
Fix a crash when
__all__
exists but cannot be inferred.Closes #8740
-
Fix crash when a variable is assigned to a class attribute of identical name.
Closes #8754
-
Fixed a crash when calling
copy.copy()
without arguments.Closes #8774
Other Changes
-
Fix a crash when a
nonlocal
is defined at module-level.Closes #8735
v2.17.4
False Positives Fixed
-
Fix a false positive for
bad-dunder-name
when there is a user-defined__index__
method.Closes #8613
Other Bug Fixes
-
pyreverse
: added escaping of vertical bar character in annotation labels produced by DOT printer to ensure it is not treated as field separator of record-based nodes.Closes #8603
-
Fixed a crash when generating a configuration file:
tomlkit.exceptions.TOMLKitError: Can't add a table to a dotted key
caused by tomlkitv0.11.8
.Closes #8632
v2.17.3
What's new in Pylint 2.17.3?
Release date: 2023-04-24
False Positives Fixed
-
Fix
unused-argument
false positive when__new__
does not use all the arguments of__init__
.Closes #3670
-
Fix
unused-import
false positive for usage ofsix.with_metaclass
.Closes #7506
-
logging-not-lazy
is not longer emitted for explicitly concatenated string arguments.Closes #8410
-
Fix false positive for isinstance-second-argument-not-valid-type when union types contains None.
Closes #8424
-
Fixed
unused-import
so that it observes thedummy-variables-rgx
option.Closes #8500
-
Union
typed variables without assignment are no longer treated asTypeAlias
.Closes #8540
-
Fix false positive for
positional-only-arguments-expected
when a function contains both a positional-only parameter that has a default value, and**kwargs
.Closes #8555
-
Fix false positive for
keyword-arg-before-vararg
when a positional-only parameter with a default value precedes*args
.Closes #8570
Other Bug Fixes
-
Improve output of
consider-using-generator
message formin()` calls with
default`` keyword.Closes #8563
v2.17.2
False Positives Fixed
-
invalid-name
now allows for integers intypealias
names:- now valid:
Good2Name
,GoodName2
. - still invalid:
_1BadName
.
Closes #8485
- now valid:
-
No longer consider
Union
as type annotation as type alias for naming checks.Closes #8487
-
unnecessary-lambda
no longer warns on lambdas which use its parameters in their body (other than the final arguments), e.g.lambda foo: (bar if foo else baz)(foo)
.Closes #8496
Other Bug Fixes
-
Fix a crash in pyreverse when "/" characters are used in the output filename e.g pyreverse -o png -p name/ path/to/project.
Closes #8504
v2.17.1
False Positives Fixed
-
Adds
asyncSetUp
to the defaultdefining-attr-methods
list to silenceattribute-defined-outside-init
warning when usingunittest.IsolatedAsyncioTestCase
.Refs #8403
Other Bug Fixes
-
--clear-cache-post-run
now also clears LRU caches for pylint utilities holding references to AST nodes.Closes #8361
-
Fix a crash when
TYPE_CHECKING
is used without importing it.Closes #8434
-
Fix a regression of
preferred-modules
where a partial match was used instead of the required full match.Closes #8453
Internal Changes
-
The following utilities are deprecated in favor of the more robust
in_type_checking_block
and will be removed in pylint 3.0:is_node_in_guarded_import_block
is_node_in_typing_guarded_import_block
is_typing_guard
is_sys_guard
is still available, which was part ofis_node_in_guarded_import_block
.Refs #8433
v2.17.0
2.17 is a small release that is the first to support python 3.11 officially with the addition of TryStar nodes.
There's still two new default checks: bad-chained-comparison
and
implicit-flag-alias
, one of them already fixed a previously undetected
bug in sentry.
Thanks to the community effort our documentation is almost complete, and almost all messages should have a proper documentation now. A big thank you to everyone who participated !
The next release is going to be 3.0.0
, bring breaking changes and
enact long announced deprecations. There's going to be frequent beta
releases, before the official releases, everyone is welcome to try the betas
so we find problems before the actual release.
What's new in Pylint 2.17.0?
Release date: 2023-03-08
New Features
-
pyreverse
now supports custom color palettes with the--color-palette
option.Closes #6738
-
Add
invalid-name
check forTypeAlias
names.Closes #7081
-
Accept values of the form
<class name>.<attribute name>
for theexclude-protected
list.Closes #7343
-
Add
--version
option topyreverse
.Refs #7851
-
Adds new functionality with preferred-modules configuration to detect submodules.
Refs #7957
-
Support implicit namespace packages (PEP 420).
Closes #8154
-
Add globbing pattern support for
--source-roots
.Closes #8290
-
Support globbing pattern when defining which file/directory/module to lint.
Closes #8310
-
pylint now supports
TryStar
nodes from Python 3.11 and should be fully compatible with Python 3.11.Closes #8387
New Checks
-
Add a
bad-chained-comparison
check that emits a warning when there is a chained comparison where one expression is semantically incompatible with the other.Closes #6559
-
Adds an
implicit-flag-alias
check that emits a warning when a class derived fromenum.IntFlag
assigns distinct integer values that share common bit positions.Refs #8102
False Positives Fixed
-
Fix various false positives for functions that return directly from structural pattern matching cases.
Closes #5288
-
Fix false positive for
used-before-assignment
whentyping.TYPE_CHECKING
is used with if/elif/else blocks.Closes #7574
-
Fix false positive for isinstance-second-argument-not-valid-type with union types.
Closes #8205
-
Fix false positive for
used-before-assignment
for named expressions appearing after the first element in a list, tuple, or set.Closes #8252
-
Fix false positive for
wrong-spelling-in-comment
with class names in a python 2 type comment.Closes #8370
False Negatives Fixed
-
Fix a false negative for 'missing-parentheses-for-call-in-test' when inference failed for the internal of the call as we did not need that information to raise correctly.
Refs #8185
-
Fix false negative for inconsistent-returns with while-loops.
Closes #8280
Other Bug Fixes
-
Fix
used-before-assignment
false positive when the walrus operator is used with a ternary operator in dictionary key/value initialization.Closes #8125
-
Fix
no-name-in-module
false positive raised when a package defines a variable with the same name as one of its submodules.Closes #8148
-
Fix a crash happening for python interpreter < 3.9 following a failed typing update.
Closes #8161
-
Fix
nested-min-max
suggestion message to indicate it's possible to splat iterable objects.Closes #8168
-
Fix a crash happening when a class attribute was negated in the start argument of an enumerate.
Closes #8207
-
Prevent emitting
invalid-name
for the line on which aglobal
statement is declared.Closes #8307
Other Changes
-
Update explanation for
global-variable-not-assigned
and add confidence.Closes #5073
-
The governance model and the path to become a maintainer have been documented as part of our effort to guarantee that the software supply chain in which pylint is included is secure.
Refs #8329
v2.16.4
False Positives Fixed
-
Fix false positive for isinstance-second-argument-not-valid-type with union types.
Closes #8205
v2.16.3
False Positives Fixed
-
Fix false positive for
wrong-spelling-in-comment
with class names in a python 2 type comment.Closes #8370
Other Bug Fixes
-
Prevent emitting
invalid-name
for the line on which aglobal
statement is declared.Closes #8307
v2.16.2
New Features
-
Add
--version
option topyreverse
.Refs #7851
False Positives Fixed
-
Fix false positive for
used-before-assignment
whentyping.TYPE_CHECKING
is used with if/elif/else blocks.Closes #7574
-
Fix false positive for
used-before-assignment
for named expressions appearing after the first element in a list, tuple, or set.Closes #8252
Other Bug Fixes
-
Fix
used-before-assignment
false positive when the walrus operator is used with a ternary operator in dictionary key/value initialization.Closes #8125
-
Fix
no-name-in-module
false positive raised when a package defines a variable with the same name as one of its submodules.Closes #8148
-
Fix
nested-min-max
suggestion message to indicate it's possible to splat iterable objects.Closes #8168
-
Fix a crash happening when a class attribute was negated in the start argument of an enumerate.
Closes #8207
Configuration
-
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