pylint-dev/pylint pylint-2.5.0

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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 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

Closes #2956

Pass the actual PyLinter object to sub processes to allow using custom
PyLinter classes.

PyLinter object (and all its members except reporter) needs to support
pickling so the PyLinter object can be passed to worker processes.

Clean up setup.py

Make pytest-runner a requirement only if running tests, similar to McCabe.

Clean up the setup.py file, resolving a number of warnings around it.

Handle SyntaxError in files passed via --from-stdin option

Pylint no longer outputs a traceback, if a file, read from stdin,
contains a syntaxerror.

Fix uppercase style to disallow 3+ uppercase followed by lowercase.

Fixed undefined-variable and unused-import false positives
when using a metaclass via an attribute.

Close #1603

Emit unused-argument for functions that partially uses their argument list before raising an exception.

Close #3246

Fixed broad_try_clause extension to check try/finally statements and to
check for nested statements (e.g., inside of an if statement).

Recognize classes explicitly inheriting from abc.ABC or having an
abc.ABCMeta metaclass as abstract. This makes them not trigger W0223.

Closes #3098

Fix overzealous arguments-differ when overridden function uses variadics

No message is emitted if the overriding function provides positional or
keyword variadics in its signature that can feasibly accept and pass on
all parameters given by the overridden function.

Close #1482
Close #1553

Multiple types of string formatting are allowed in logging functions.

The logging-fstring-interpolation message has been brought back to allow
multiple types of string formatting to be used.

Close #3361