PyCQA/pylint
### [`v2.17.1`](https://togithub.com/PyCQA/pylint/releases/tag/v2.17.1)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.17.0...v2.17.1)
## False Positives Fixed
- Adds `asyncSetUp` to the default `defining-attr-methods` list to silence
`attribute-defined-outside-init` warning when using
`unittest.IsolatedAsyncioTestCase`.
Refs [#8403](https://togithub.com/PyCQA/pylint/issues/8403)
## Other Bug Fixes
- `--clear-cache-post-run` now also clears LRU caches for pylint utilities
holding references to AST nodes.
Closes [#8361](https://togithub.com/PyCQA/pylint/issues/8361)
- Fix a crash when `TYPE_CHECKING` is used without importing it.
Closes [#8434](https://togithub.com/PyCQA/pylint/issues/8434)
- Fix a regression of `preferred-modules` where a partial match was used
instead of the required full match.
Closes [#8453](https://togithub.com/PyCQA/pylint/issues/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 of
`is_node_in_guarded_import_block`.
Refs [#8433](https://togithub.com/PyCQA/pylint/issues/8433)
### [`v2.17.0`](https://togithub.com/PyCQA/pylint/releases/tag/v2.17.0): 2.17.0
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.16.4...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](https://togithub.com/PyCQA/pylint/issues/6738)
- Add `invalid-name` check for `TypeAlias` names.
Closes [#7081](https://togithub.com/PyCQA/pylint/issues/7081)
- Accept values of the form `.` for the
`exclude-protected` list.
Closes [#7343](https://togithub.com/PyCQA/pylint/issues/7343)
- Add `--version` option to `pyreverse`.
Refs [#7851](https://togithub.com/PyCQA/pylint/issues/7851)
- Adds new functionality with preferred-modules configuration to detect
submodules.
Refs [#7957](https://togithub.com/PyCQA/pylint/issues/7957)
- Support implicit namespace packages (PEP 420).
Closes [#8154](https://togithub.com/PyCQA/pylint/issues/8154)
- Add globbing pattern support for `--source-roots`.
Closes [#8290](https://togithub.com/PyCQA/pylint/issues/8290)
- Support globbing pattern when defining which file/directory/module to lint.
Closes [#8310](https://togithub.com/PyCQA/pylint/issues/8310)
- pylint now supports `TryStar` nodes from Python 3.11 and should be fully
compatible with Python 3.11.
Closes [#8387](https://togithub.com/PyCQA/pylint/issues/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](https://togithub.com/PyCQA/pylint/issues/6559)
- Adds an `implicit-flag-alias` check that emits a warning when a class
derived from `enum.IntFlag` assigns distinct integer values that share
common bit positions.
Refs [#8102](https://togithub.com/PyCQA/pylint/issues/8102)
## False Positives Fixed
- Fix various false positives for functions that return directly from
structural pattern matching cases.
Closes [#5288](https://togithub.com/PyCQA/pylint/issues/5288)
- Fix false positive for `used-before-assignment` when
`typing.TYPE_CHECKING` is used with if/elif/else blocks.
Closes [#7574](https://togithub.com/PyCQA/pylint/issues/7574)
- Fix false positive for isinstance-second-argument-not-valid-type with union
types.
Closes [#8205](https://togithub.com/PyCQA/pylint/issues/8205)
- Fix false positive for `used-before-assignment` for named expressions
appearing after the first element in a list, tuple, or set.
Closes [#8252](https://togithub.com/PyCQA/pylint/issues/8252)
- Fix false positive for `wrong-spelling-in-comment` with class names in a
python 2 type comment.
Closes [#8370](https://togithub.com/PyCQA/pylint/issues/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](https://togithub.com/PyCQA/pylint/issues/8185)
- Fix false negative for inconsistent-returns with while-loops.
Closes [#8280](https://togithub.com/PyCQA/pylint/issues/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](https://togithub.com/PyCQA/pylint/issues/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](https://togithub.com/PyCQA/pylint/issues/8148)
- Fix a crash happening for python interpreter < 3.9 following a failed typing
update.
Closes [#8161](https://togithub.com/PyCQA/pylint/issues/8161)
- Fix `nested-min-max` suggestion message to indicate it's possible to splat
iterable objects.
Closes [#8168](https://togithub.com/PyCQA/pylint/issues/8168)
- Fix a crash happening when a class attribute was negated in the start
argument of an enumerate.
Closes [#8207](https://togithub.com/PyCQA/pylint/issues/8207)
- Prevent emitting `invalid-name` for the line on which a `global`
statement is declared.
Closes [#8307](https://togithub.com/PyCQA/pylint/issues/8307)
## Other Changes
- Update explanation for `global-variable-not-assigned` and add confidence.
Closes [#5073](https://togithub.com/PyCQA/pylint/issues/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](https://togithub.com/PyCQA/pylint/issues/8329)
### [`v2.16.4`](https://togithub.com/PyCQA/pylint/releases/tag/v2.16.4)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.16.3...v2.16.4)
## False Positives Fixed
- Fix false positive for isinstance-second-argument-not-valid-type with union
types.
Closes [#8205](https://togithub.com/PyCQA/pylint/issues/8205)
### [`v2.16.3`](https://togithub.com/PyCQA/pylint/releases/tag/v2.16.3)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.16.2...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](https://togithub.com/PyCQA/pylint/issues/8370)
## Other Bug Fixes
- Prevent emitting `invalid-name` for the line on which a `global`
statement is declared.
Closes [#8307](https://togithub.com/PyCQA/pylint/issues/8307)
### [`v2.16.2`](https://togithub.com/PyCQA/pylint/releases/tag/v2.16.2)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.16.1...v2.16.2)
## New Features
- Add `--version` option to `pyreverse`.
Refs [#7851](https://togithub.com/PyCQA/pylint/issues/7851)
## False Positives Fixed
- Fix false positive for `used-before-assignment` when
`typing.TYPE_CHECKING` is used with if/elif/else blocks.
Closes [#7574](https://togithub.com/PyCQA/pylint/issues/7574)
- Fix false positive for `used-before-assignment` for named expressions
appearing after the first element in a list, tuple, or set.
Closes [#8252](https://togithub.com/PyCQA/pylint/issues/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](https://togithub.com/PyCQA/pylint/issues/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](https://togithub.com/PyCQA/pylint/issues/8148)
- Fix `nested-min-max` suggestion message to indicate it's possible to splat
iterable objects.
Closes [#8168](https://togithub.com/PyCQA/pylint/issues/8168)
- Fix a crash happening when a class attribute was negated in the start
argument of an enumerate.
Closes [#8207](https://togithub.com/PyCQA/pylint/issues/8207)
### [`v2.16.1`](https://togithub.com/PyCQA/pylint/releases/tag/v2.16.1)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.16.0...v2.16.1)
#### Other Bug Fixes
- Fix a crash happening for python interpreter < 3.9 following a failed typing
update.
Closes [#8161](https://togithub.com/PyCQA/pylint/issues/8161)
### [`v2.16.0`](https://togithub.com/PyCQA/pylint/releases/tag/v2.16.0)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.15.10...v2.16.0)
# Summary -- Release highlights
In 2.16.0 we added aggregation and composition understanding in `pyreverse`, and a way to clear
the cache in between run in server mode (originally for the VS Code integration). Apart from the bug
fixes there's also a lot of new checks, and new extensions that have been asked for for a long time
that were implemented.
If you want to benefit from all the new checks load the following plugins::
pylint.extensions.dict_init_mutate,
pylint.extensions.dunder,
pylint.extensions.typing,
pylint.extensions.magic_value,
We still welcome any community effort to help review, integrate, and add good/bad examples to the doc for
[#5953](https://togithub.com/PyCQA/pylint/issues/5953). This should be doable without any `pylint` or `astroid`
knowledge, so this is the perfect entrypoint if you want to contribute to `pylint` or open source without
any experience with our code!
Last but not least [@clavedeluna](https://togithub.com/clavedeluna) and [@nickdrozd](https://togithub.com/nickdrozd) became triagers, welcome to the team !
## What's new in Pylint 2.16.0?
## Changes requiring user actions
- The `accept-no-raise-doc` option related to `missing-raises-doc` will now
be correctly taken into account all the time.
Pylint will no longer raise missing-raises-doc (W9006) when no exceptions are
documented and accept-no-raise-doc is true (issue [#7208](https://togithub.com/PyCQA/pylint/issues/7208)).
If you were expecting missing-raises-doc errors to be raised in that case,
you
will now have to add `accept-no-raise-doc=no` in your configuration to keep
the same behavior.
Closes [#7208](https://togithub.com/PyCQA/pylint/issues/7208)
## New Features
- Added the `no-header` output format. If enabled with
`--output-format=no-header`, it will not include the module name in the
output.
Closes [#5362](https://togithub.com/PyCQA/pylint/issues/5362)
- Added configuration option `clear-cache-post-run` to support server-like
usage.
Use this flag if you expect the linted files to be altered between runs.
Refs [#5401](https://togithub.com/PyCQA/pylint/issues/5401)
- Add `--allow-reexport-from-package` option to configure the
`useless-import-alias` check not to emit a warning if a name
is reexported from a package.
Closes [#6006](https://togithub.com/PyCQA/pylint/issues/6006)
- Update `pyreverse` to differentiate between aggregations and compositions.
`pyreverse` checks if it's an Instance or a Call of an object via method
parameters (via type hints)
to decide if it's a composition or an aggregation.
Refs [#6543](https://togithub.com/PyCQA/pylint/issues/6543)
## New Checks
- Adds a `pointless-exception-statement` check that emits a warning when an
Exception is created and not assigned, raised or returned.
Refs [#3110](https://togithub.com/PyCQA/pylint/issues/3110)
- Add a `shadowed-import` message for aliased imports.
Closes [#4836](https://togithub.com/PyCQA/pylint/issues/4836)
- Add new check called `unbalanced-dict-unpacking` to check for unbalanced
dict unpacking
in assignment and for loops.
Closes [#5797](https://togithub.com/PyCQA/pylint/issues/5797)
- Add new checker `positional-only-arguments-expected` to check for cases
when
positional-only arguments have been passed as keyword arguments.
Closes [#6489](https://togithub.com/PyCQA/pylint/issues/6489)
- Added `singledispatch-method` which informs that `@singledispatch` should
decorate functions and not class/instance methods.
Added `singledispatchmethod-function` which informs that
`@singledispatchmethod` should decorate class/instance methods and not
functions.
Closes [#6917](https://togithub.com/PyCQA/pylint/issues/6917)
- Rename `broad-except` to `broad-exception-caught` and add new checker
`broad-exception-raised`
which will warn if general exceptions `BaseException` or `Exception` are
raised.
Closes [#7494](https://togithub.com/PyCQA/pylint/issues/7494)
- Added `nested-min-max` which flags `min(1, min(2, 3))` to simplify to
`min(1, 2, 3)`.
Closes [#7546](https://togithub.com/PyCQA/pylint/issues/7546)
- Extended `use-dict-literal` to also warn about call to `dict()` when
passing keyword arguments.
Closes [#7690](https://togithub.com/PyCQA/pylint/issues/7690)
- Add `named-expr-without-context` check to emit a warning if a named
expression is used outside a context like `if`, `for`, `while`, or
a comprehension.
Refs [#7760](https://togithub.com/PyCQA/pylint/issues/7760)
- Add `invalid-slice-step` check to warn about a slice step value of `0`
for common builtin sequences.
Refs [#7762](https://togithub.com/PyCQA/pylint/issues/7762)
- Add `consider-refactoring-into-while-condition` check to recommend
refactoring when
a while loop is defined with a constant condition with an immediate `if`
statement to check for `break` condition as a first statement.
Closes [#8015](https://togithub.com/PyCQA/pylint/issues/8015)
## Extensions
- Add new extension checker `dict-init-mutate` that flags mutating a
dictionary immediately
after the dictionary was created.
Closes [#2876](https://togithub.com/PyCQA/pylint/issues/2876)
- Added `bad-dunder-name` extension check, which flags bad or misspelled
dunder methods.
You can use the `good-dunder-names` option to allow specific dunder names.
Closes [#3038](https://togithub.com/PyCQA/pylint/issues/3038)
- Added `consider-using-augmented-assign` check for `CodeStyle` extension
which flags `x = x + 1` to simplify to `x += 1`.
This check is disabled by default. To use it, load the code style extension
with `load-plugins=pylint.extensions.code_style` and add
`consider-using-augmented-assign` in the `enable` option.
Closes [#3391](https://togithub.com/PyCQA/pylint/issues/3391)
- Add `magic-number` plugin checker for comparison with constants instead of
named constants or enums.
You can use it with `--load-plugins=pylint.extensions.magic_value`.
Closes [#7281](https://togithub.com/PyCQA/pylint/issues/7281)
- Add `redundant-typehint-argument` message for `typing` plugin for duplicate
assign typehints.
Enable the plugin to enable the message with:
`--load-plugins=pylint.extensions.typing`.
Closes [#7636](https://togithub.com/PyCQA/pylint/issues/7636)
## False Positives Fixed
- Fix false positive for `unused-variable` and `unused-import` when a name
is only used in a string literal type annotation.
Closes [#3299](https://togithub.com/PyCQA/pylint/issues/3299)
- Document a known false positive for `useless-suppression` when disabling
`line-too-long` in a module with only comments and no code.
Closes [#3368](https://togithub.com/PyCQA/pylint/issues/3368)
- `trailing-whitespaces` is no longer reported within strings.
Closes [#3822](https://togithub.com/PyCQA/pylint/issues/3822)
- Fix false positive for `global-variable-not-assigned` when a global
variable is re-assigned via an `ImportFrom` node.
Closes [#4809](https://togithub.com/PyCQA/pylint/issues/4809)
- Fix false positive for `use-maxsplit-arg` with custom split method.
Closes [#4857](https://togithub.com/PyCQA/pylint/issues/4857)
- Fix `logging-fstring-interpolation` false positive raised when logging and
f-string with `%s` formatting.
Closes [#4984](https://togithub.com/PyCQA/pylint/issues/4984)
- Fix false-positive for `used-before-assignment` in pattern matching
with a guard.
Closes [#5327](https://togithub.com/PyCQA/pylint/issues/5327)
- Fix `use-sequence-for-iteration` when unpacking a set with `*`.
Closes [#5788](https://togithub.com/PyCQA/pylint/issues/5788)
- Fix `deprecated-method` false positive when alias for method is similar to
name of deprecated method.
Closes [#5886](https://togithub.com/PyCQA/pylint/issues/5886)
- Fix false positive `assigning-non-slot` when a class attribute is
re-assigned.
Closes [#6001](https://togithub.com/PyCQA/pylint/issues/6001)
- Fix false positive for `too-many-function-args` when a function call is
assigned to a class attribute inside the class where the function is defined.
Closes [#6592](https://togithub.com/PyCQA/pylint/issues/6592)
- Fixes false positive `abstract-method` on Protocol classes.
Closes [#7209](https://togithub.com/PyCQA/pylint/issues/7209)
- Pylint now understands the `kw_only` keyword argument for `dataclass`.
Closes [#7290](https://togithub.com/PyCQA/pylint/issues/7290), closes [#6550](https://togithub.com/PyCQA/pylint/issues/6550), closes [#5857](https://togithub.com/PyCQA/pylint/issues/5857)
- Fix false positive for `undefined-loop-variable` in `for-else` loops that
use a function
having a return type annotation of `NoReturn` or `Never`.
Closes [#7311](https://togithub.com/PyCQA/pylint/issues/7311)
- Fix `used-before-assignment` for functions/classes defined in type checking
guard.
Closes [#7368](https://togithub.com/PyCQA/pylint/issues/7368)
- Fix false positive for `unhashable-member` when subclassing `dict` and
using the subclass as a dictionary key.
Closes [#7501](https://togithub.com/PyCQA/pylint/issues/7501)
- Fix the message for `unnecessary-dunder-call` for `__aiter__` and
`__aneext__`. Also
only emit the warning when `py-version` >= 3.10.
Closes [#7529](https://togithub.com/PyCQA/pylint/issues/7529)
- Fix `used-before-assignment` false positive when else branch calls
`sys.exit` or similar terminating functions.
Closes [#7563](https://togithub.com/PyCQA/pylint/issues/7563)
- Fix a false positive for `used-before-assignment` for imports guarded by
`typing.TYPE_CHECKING` later used in variable annotations.
Closes [#7609](https://togithub.com/PyCQA/pylint/issues/7609)
- Fix a false positive for `simplify-boolean-expression` when multiple values
are inferred for a constant.
Closes [#7626](https://togithub.com/PyCQA/pylint/issues/7626)
- `unnecessary-list-index-lookup` will not be wrongly emitted if
`enumerate` is called with `start`.
Closes [#7682](https://togithub.com/PyCQA/pylint/issues/7682)
- Don't warn about `stop-iteration-return` when using `next()` over
`itertools.cycle`.
Closes [#7765](https://togithub.com/PyCQA/pylint/issues/7765)
- Fixes `used-before-assignment` false positive when the walrus operator
is used in a ternary operator.
Closes [#7779](https://togithub.com/PyCQA/pylint/issues/7779)
- Fix `missing-param-doc` false positive when function parameter has an
escaped underscore.
Closes [#7827](https://togithub.com/PyCQA/pylint/issues/7827)
- Fixes `method-cache-max-size-none` false positive for methods inheriting
from `Enum`.
Closes [#7857](https://togithub.com/PyCQA/pylint/issues/7857)
- `multiple-statements` no longer triggers for function stubs using inlined
`...`.
Closes [#7860](https://togithub.com/PyCQA/pylint/issues/7860)
- Fix a false positive for `used-before-assignment` when a name guarded by
`if TYPE_CHECKING:` is used as a type annotation in a function body and
later re-imported in the same scope.
Closes [#7882](https://togithub.com/PyCQA/pylint/issues/7882)
- Prevent `used-before-assignment` when imports guarded by `if
TYPE_CHECKING`
are guarded again when used.
Closes [#7979](https://togithub.com/PyCQA/pylint/issues/7979)
- Fixes false positive for `try-except-raise` with multiple exceptions in one
except statement if exception are in different namespace.
Closes [#8051](https://togithub.com/PyCQA/pylint/issues/8051)
- Fix `invalid-name` errors for `typing_extension.TypeVar`.
Refs [#8089](https://togithub.com/PyCQA/pylint/issues/8089)
- Fix `no-kwoa` false positive for context managers.
Closes [#8100](https://togithub.com/PyCQA/pylint/issues/8100)
- Fix a false positive for `redefined-variable-type` when `async` methods
are present.
Closes [#8120](https://togithub.com/PyCQA/pylint/issues/8120)
## False Negatives Fixed
- Code following a call to `quit`, `exit`, `sys.exit` or `os._exit`
will be marked as `unreachable`.
Refs [#519](https://togithub.com/PyCQA/pylint/issues/519)
- Emit `used-before-assignment` when function arguments are redefined inside
an inner function and accessed there before assignment.
Closes [#2374](https://togithub.com/PyCQA/pylint/issues/2374)
- Fix a false negative for `unused-import` when one module used an import in
a type annotation that was also used in another module.
Closes [#4150](https://togithub.com/PyCQA/pylint/issues/4150)
- Flag `superfluous-parens` if parentheses are used during string
concatenation.
Closes [#4792](https://togithub.com/PyCQA/pylint/issues/4792)
- Emit `used-before-assignment` when relying on names only defined under
conditions always testing false.
Closes [#4913](https://togithub.com/PyCQA/pylint/issues/4913)
- `consider-using-join` can now be emitted for non-empty string separators.
Closes [#6639](https://togithub.com/PyCQA/pylint/issues/6639)
- Emit `used-before-assignment` for further imports guarded by
`TYPE_CHECKING`
Previously, this message was only emitted for imports guarded directly under
`TYPE_CHECKING`, not guarded two if-branches deep, nor when
`TYPE_CHECKING`
was imported from `typing` under an alias.
Closes [#7539](https://togithub.com/PyCQA/pylint/issues/7539)
- Fix a false negative for `unused-import` when a constant inside
`typing.Annotated` was treated as a reference to an import.
Closes [#7547](https://togithub.com/PyCQA/pylint/issues/7547)
- `consider-using-any-or-all` message will now be raised in cases when
boolean is initialized, reassigned during loop, and immediately returned.
Closes [#7699](https://togithub.com/PyCQA/pylint/issues/7699)
- Extend `invalid-slice-index` to emit an warning for invalid slice indices
used with string and byte sequences, and range objects.
Refs [#7762](https://togithub.com/PyCQA/pylint/issues/7762)
- Fixes `unnecessary-list-index-lookup` false negative when `enumerate` is
called with `iterable` as a kwarg.
Closes [#7770](https://togithub.com/PyCQA/pylint/issues/7770)
- `no-else-return` or `no-else-raise` will be emitted if `except` block
always returns or raises.
Closes [#7788](https://togithub.com/PyCQA/pylint/issues/7788)
- Fix `dangerous-default-value` false negative when `*` is used.
Closes [#7818](https://togithub.com/PyCQA/pylint/issues/7818)
- `consider-using-with` now triggers for `pathlib.Path.open`.
Closes [#7964](https://togithub.com/PyCQA/pylint/issues/7964)
## Other Bug Fixes
- Fix bug in detecting `unused-variable` when iterating on variable.
Closes [#3044](https://togithub.com/PyCQA/pylint/issues/3044)
- Fix bug in scanning of names inside arguments to `typing.Literal`.
See https://peps.python.org/pep-0586/#literals-enums-and-forward-references
for details.
Refs [#3299](https://togithub.com/PyCQA/pylint/issues/3299)
- Update `disallowed-name` check to flag module-level variables.
Closes [#3701](https://togithub.com/PyCQA/pylint/issues/3701)
- Pylint will no longer deadlock if a parallel job is killed but fail
immediately instead.
Closes [#3899](https://togithub.com/PyCQA/pylint/issues/3899)
- Fix ignored files being linted when passed on stdin.
Closes [#4354](https://togithub.com/PyCQA/pylint/issues/4354)
- Fix `no-member` false negative when augmented assign is done manually,
without `+=`.
Closes [#4562](https://togithub.com/PyCQA/pylint/issues/4562)
- Any assertion on a populated tuple will now receive a `assert-on-tuple`
warning.
Closes [#4655](https://togithub.com/PyCQA/pylint/issues/4655)
- `missing-return-doc`, `missing-raises-doc` and `missing-yields-doc` now
respect
the `no-docstring-rgx` option.
Closes [#4743](https://togithub.com/PyCQA/pylint/issues/4743)
- Update `reimported` help message for clarity.
Closes [#4836](https://togithub.com/PyCQA/pylint/issues/4836)
- `consider-iterating-dictionary` will no longer be raised if bitwise
operations are used.
Closes [#5478](https://togithub.com/PyCQA/pylint/issues/5478)
- Using custom braces in `msg-template` will now work properly.
Closes [#5636](https://togithub.com/PyCQA/pylint/issues/5636)
- Pylint will now filter duplicates given to it before linting. The output
should
be the same whether a file is given/discovered multiple times or not.
Closes [#6242](https://togithub.com/PyCQA/pylint/issues/6242), [#4053](https://togithub.com/PyCQA/pylint/issues/4053)
- Remove `__index__` dunder method call from `unnecessary-dunder-call`
check.
Closes [#6795](https://togithub.com/PyCQA/pylint/issues/6795)
- Fixed handling of `--` as separator between positional arguments and flags.
This was not actually fixed in 2.14.5.
Closes [#7003](https://togithub.com/PyCQA/pylint/issues/7003), Refs [#7096](https://togithub.com/PyCQA/pylint/issues/7096)
- Don't crash on `OSError` in config file discovery.
Closes [#7169](https://togithub.com/PyCQA/pylint/issues/7169)
- Messages sent to reporter are now copied so a reporter cannot modify the
message sent to other reporters.
Closes [#7214](https://togithub.com/PyCQA/pylint/issues/7214)
- Fixed a case where custom plugins specified by command line could silently
fail.
Specifically, if a plugin relies on the `init-hook` option changing
`sys.path` before
it can be imported, this will now emit a `bad-plugin-value` message. Before
this
change, it would silently fail to register the plugin for use, but would load
any configuration, which could have unintended effects.
Fixes part of [#7264](https://togithub.com/PyCQA/pylint/issues/7264).
- Update `modified_iterating` checker to fix a crash with `for` loops on
empty list.
Closes [#7380](https://togithub.com/PyCQA/pylint/issues/7380)
- Update wording for `arguments-differ` and `arguments-renamed` to clarify
overriding object.
Closes [#7390](https://togithub.com/PyCQA/pylint/issues/7390)
- `disable-next` is now correctly scoped to only the succeeding line.
Closes [#7401](https://togithub.com/PyCQA/pylint/issues/7401)
- Fixed a crash in the `unhashable-member` checker when using a `lambda` as
a dict key.
Closes [#7453](https://togithub.com/PyCQA/pylint/issues/7453)
- Add `mailcap` to deprecated modules list.
Closes [#7457](https://togithub.com/PyCQA/pylint/issues/7457)
- Fix a crash in the `modified-iterating-dict` checker involving instance
attributes.
Closes [#7461](https://togithub.com/PyCQA/pylint/issues/7461)
- `invalid-class-object` does not crash anymore when `__class__` is
assigned alongside another variable.
Closes [#7467](https://togithub.com/PyCQA/pylint/issues/7467)
- `--help-msg` now accepts a comma-separated list of message IDs again.
Closes [#7471](https://togithub.com/PyCQA/pylint/issues/7471)
- Allow specifying non-builtin exceptions in the `overgeneral-exception`
option
using an exception's qualified name.
Closes [#7495](https://togithub.com/PyCQA/pylint/issues/7495)
- Report `no-self-argument` rather than `no-method-argument` for methods
with variadic arguments.
Closes [#7507](https://togithub.com/PyCQA/pylint/issues/7507)
- Fixed an issue where `syntax-error` couldn't be raised on files with
invalid encodings.
Closes [#7522](https://togithub.com/PyCQA/pylint/issues/7522)
- Fix false positive for `redefined-outer-name` when aliasing `typing`
e.g. as `t` and guarding imports under `t.TYPE_CHECKING`.
Closes [#7524](https://togithub.com/PyCQA/pylint/issues/7524)
- Fixed a crash of the `modified_iterating` checker when iterating on a set
defined as a class attribute.
Closes [#7528](https://togithub.com/PyCQA/pylint/issues/7528)
- Use `py-version` to determine if a message should be emitted for messages
defined with `max-version` or `min-version`.
Closes [#7569](https://togithub.com/PyCQA/pylint/issues/7569)
- Improve `bad-thread-instantiation` check to warn if `target` is not
passed in as a keyword argument
or as a second argument.
Closes [#7570](https://togithub.com/PyCQA/pylint/issues/7570)
- Fixes edge case of custom method named `next` raised an astroid error.
Closes [#7610](https://togithub.com/PyCQA/pylint/issues/7610)
- Fixed a multi-processing crash that prevents using any more than 1 thread on
MacOS.
The returned module objects and errors that were cached by the linter plugin
loader
cannot be reliably pickled. This means that `dill` would throw an error
when
attempting to serialise the linter object for multi-processing use.
Closes [#7635](https://togithub.com/PyCQA/pylint/issues/7635).
- Fix crash that happened when parsing files with unexpected encoding starting
with 'utf' like `utf13`.
Closes [#7661](https://togithub.com/PyCQA/pylint/issues/7661)
- Fix a crash when a child class with an `__init__` method inherits from a
parent class with an `__init__` class attribute.
Closes [#7742](https://togithub.com/PyCQA/pylint/issues/7742)
- Fix `valid-metaclass-classmethod-first-arg` default config value from "cls"
to "mcs"
which would cause both a false-positive and false-negative.
Closes [#7782](https://togithub.com/PyCQA/pylint/issues/7782)
- Fixes a crash in the `unnecessary_list_index_lookup` check when using
`enumerate` with `start` and a class attribute.
Closes [#7821](https://togithub.com/PyCQA/pylint/issues/7821)
- Fixes a crash in `stop-iteration-return` when the `next` builtin is
called without arguments.
Closes [#7828](https://togithub.com/PyCQA/pylint/issues/7828)
- When pylint exit due to bad arguments being provided the exit code will now
be the expected `32`.
Refs [#7931](https://togithub.com/PyCQA/pylint/issues/7931)
- Fixes a `ModuleNotFound` exception when running pylint on a Django project
with the `pylint_django` plugin enabled.
Closes [#7938](https://togithub.com/PyCQA/pylint/issues/7938)
- Fixed a crash when inferring a value and using its qname on a slice that was
being incorrectly called.
Closes [#8067](https://togithub.com/PyCQA/pylint/issues/8067)
- Use better regex to check for private attributes.
Refs [#8081](https://togithub.com/PyCQA/pylint/issues/8081)
- Fix issue with new typing Union syntax in runtime context for Python 3.10+.
Closes [#8119](https://togithub.com/PyCQA/pylint/issues/8119)
## Other Changes
- Pylint now provides basic support for Python 3.11.
Closes [#5920](https://togithub.com/PyCQA/pylint/issues/5920)
- Update message for `abstract-method` to include child class name.
Closes [#7124](https://togithub.com/PyCQA/pylint/issues/7124)
- Update Pyreverse's dot and plantuml printers to detect when class methods are
abstract and show them with italic font.
For the dot printer update the label to use html-like syntax.
Closes [#7346](https://togithub.com/PyCQA/pylint/issues/7346)
- The `docparams` extension now considers typing in Numpy style docstrings
as "documentation" for the `missing-param-doc` message.
Refs [#7398](https://togithub.com/PyCQA/pylint/issues/7398)
- Relevant `DeprecationWarnings` are now raised with `stacklevel=2`, so
they have the callsite attached in the message.
Closes [#7463](https://togithub.com/PyCQA/pylint/issues/7463)
- Add a `minimal` option to `pylint-config` and its toml generator.
Closes [#7485](https://togithub.com/PyCQA/pylint/issues/7485)
- Add method name to the error messages of `no-method-argument` and
`no-self-argument`.
Closes [#7507](https://togithub.com/PyCQA/pylint/issues/7507)
- Prevent leaving the pip install cache in the Docker image.
Refs [#7544](https://togithub.com/PyCQA/pylint/issues/7544)
- Add a keyword-only `compare_constants` argument to `safe_infer`.
Refs [#7626](https://togithub.com/PyCQA/pylint/issues/7626)
- Add `default_enabled` option to optional message dict. Provides an option
to disable a checker message by default.
To use a disabled message, the user must enable it explicitly by adding the
message to the `enable` option.
Refs [#7629](https://togithub.com/PyCQA/pylint/issues/7629)
- Sort `--generated-rcfile` output.
Refs [#7655](https://togithub.com/PyCQA/pylint/issues/7655)
- epylint is now deprecated and will be removed in pylint 3.0.0. All emacs and
flymake related
files were removed and their support will now happen in an external
repository :
https://github.com/emacsorphanage/pylint.
Closes [#7737](https://togithub.com/PyCQA/pylint/issues/7737)
- Adds test for existing preferred-modules configuration functionality.
Refs [#7957](https://togithub.com/PyCQA/pylint/issues/7957)
## Internal Changes
- Add and fix regression tests for plugin loading.
This shores up the tests that cover the loading of custom plugins as affected
by any changes made to the `sys.path` during execution of an `init-hook`.
Given the existing contract of allowing plugins to be loaded by fiddling with
the path in this way, this is now the last bit of work needed to close Github
issue [#7264](https://togithub.com/PyCQA/pylint/issues/7264).
Closes [#7264](https://togithub.com/PyCQA/pylint/issues/7264)
### [`v2.15.10`](https://togithub.com/PyCQA/pylint/releases/tag/v2.15.10)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.15.9...v2.15.10)
## False Positives Fixed
- Fix `use-sequence-for-iteration` when unpacking a set with `*`.
Closes [#5788](https://togithub.com/PyCQA/pylint/issues/5788)
- Fix false positive `assigning-non-slot` when a class attribute is
re-assigned.
Closes [#6001](https://togithub.com/PyCQA/pylint/issues/6001)
- Fixes `used-before-assignment` false positive when the walrus operator
is used in a ternary operator.
Closes [#7779](https://togithub.com/PyCQA/pylint/issues/7779)
- Prevent `used-before-assignment` when imports guarded by `if
TYPE_CHECKING`
are guarded again when used.
Closes [#7979](https://togithub.com/PyCQA/pylint/issues/7979)
## Other Bug Fixes
- Using custom braces in `msg-template` will now work properly.
Closes [#5636](https://togithub.com/PyCQA/pylint/issues/5636)
### [`v2.15.9`](https://togithub.com/PyCQA/pylint/releases/tag/v2.15.9)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.15.8...v2.15.9)
## False Positives Fixed
- Fix false-positive for `used-before-assignment` in pattern matching with a guard.
Closes [#5327](https://togithub.com/PyCQA/pylint/issues/5327)
## Other Bug Fixes
- Pylint will no longer deadlock if a parallel job is killed but fail immediately instead.
Closes [#3899](https://togithub.com/PyCQA/pylint/issues/3899)
- When pylint exit due to bad arguments being provided the exit code will now be the expected `32`.
Refs [#7931](https://togithub.com/PyCQA/pylint/issues/7931)
- Fixes a `ModuleNotFound` exception when running pylint on a Django project with the `pylint_django` plugin enabled.
Closes [#7938](https://togithub.com/PyCQA/pylint/issues/7938)
### [`v2.15.8`](https://togithub.com/PyCQA/pylint/releases/tag/v2.15.8)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.15.7...v2.15.8)
## False Positives Fixed
- Document a known false positive for `useless-suppression` when disabling
`line-too-long` in a module with only comments and no code.
Closes [#3368](https://togithub.com/PyCQA/pylint/issues/3368)
- Fix `logging-fstring-interpolation` false positive raised when logging and f-string with `%s` formatting.
Closes [#4984](https://togithub.com/PyCQA/pylint/issues/4984)
- Fixes false positive `abstract-method` on Protocol classes.
Closes [#7209](https://togithub.com/PyCQA/pylint/issues/7209)
- Fix `missing-param-doc` false positive when function parameter has an escaped underscore.
Closes [#7827](https://togithub.com/PyCQA/pylint/issues/7827)
- `multiple-statements` no longer triggers for function stubs using inlined `...`.
Closes [#7860](https://togithub.com/PyCQA/pylint/issues/7860)
### [`v2.15.7`](https://togithub.com/PyCQA/pylint/releases/tag/v2.15.7)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.15.6...v2.15.7)
## False Positives Fixed
- Fix `deprecated-method` false positive when alias for method is similar to
name of deprecated method.
Closes [#5886](https://togithub.com/PyCQA/pylint/issues/5886)
- Fix a false positive for `used-before-assignment` for imports guarded by
`typing.TYPE_CHECKING` later used in variable annotations.
Closes [#7609](https://togithub.com/PyCQA/pylint/issues/7609)
## Other Bug Fixes
- Pylint will now filter duplicates given to it before linting. The output
should be the same whether a file is given/discovered multiple times or not.
Closes [#6242](https://togithub.com/PyCQA/pylint/issues/6242), [#4053](https://togithub.com/PyCQA/pylint/issues/4053)
- Fixes a crash in `stop-iteration-return` when the `next` builtin is
called without arguments.
Closes [#7828](https://togithub.com/PyCQA/pylint/issues/7828)
### [`v2.15.6`](https://togithub.com/PyCQA/pylint/releases/tag/v2.15.6)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.15.5...v2.15.6)
#### False Positives Fixed
- Fix false positive for `unhashable-member` when subclassing `dict` and
using the subclass as a dictionary key.
Closes [#7501](https://togithub.com/PyCQA/pylint/issues/7501)
- `unnecessary-list-index-lookup` will not be wrongly emitted if
`enumerate` is called with `start`.
Closes [#7682](https://togithub.com/PyCQA/pylint/issues/7682)
- Don't warn about `stop-iteration-return` when using `next()` over
`itertools.cycle`.
Closes [#7765](https://togithub.com/PyCQA/pylint/issues/7765)
#### Other Bug Fixes
- Messages sent to reporter are now copied so a reporter cannot modify the
message sent to other reporters.
Closes [#7214](https://togithub.com/PyCQA/pylint/issues/7214)
- Fixes edge case of custom method named `next` raised an astroid error.
Closes [#7610](https://togithub.com/PyCQA/pylint/issues/7610)
- Fix crash that happened when parsing files with unexpected encoding starting
with 'utf' like `utf13`.
Closes [#7661](https://togithub.com/PyCQA/pylint/issues/7661)
- Fix a crash when a child class with an `__init__` method inherits from a
parent class with an `__init__` class attribute.
Closes [#7742](https://togithub.com/PyCQA/pylint/issues/7742)
### [`v2.15.5`](https://togithub.com/PyCQA/pylint/releases/tag/v2.15.5)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.15.4...v2.15.5)
## What's new in Pylint 2.15.5?
Release date: 2022-10-21
## False Positives Fixed
- Fix a false positive for `simplify-boolean-expression` when multiple values
are inferred for a constant.
Closes [#7626](https://togithub.com/PyCQA/pylint/issues/7626)
## Other Bug Fixes
- Remove `__index__` dunder method call from `unnecessary-dunder-call`
check.
Closes [#6795](https://togithub.com/PyCQA/pylint/issues/6795)
- Fixed a multi-processing crash that prevents using any more than 1 thread on
MacOS.
The returned module objects and errors that were cached by the linter plugin loader cannot be reliably pickled. This means that `dill` would throw an error when attempting to serialise the linter object for multi-processing use.
Closes [#7635](https://togithub.com/PyCQA/pylint/issues/7635).
## Other Changes
- Add a keyword-only `compare_constants` argument to `safe_infer`.
Refs [#7626](https://togithub.com/PyCQA/pylint/issues/7626)
- Sort `--generated-rcfile` output.
Refs [#7655](https://togithub.com/PyCQA/pylint/issues/7655)
### [`v2.15.4`](https://togithub.com/PyCQA/pylint/releases/tag/v2.15.4)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.15.3...v2.15.4)
## False Positives Fixed
- Fix the message for `unnecessary-dunder-call` for `__aiter__` and
`__anext__`. Also
only emit the warning when `py-version` >= 3.10.
Closes [#7529](https://togithub.com/PyCQA/pylint/issues/7529)
## Other Bug Fixes
- Fix bug in detecting `unused-variable` when iterating on variable.
Closes [#3044](https://togithub.com/PyCQA/pylint/issues/3044)
- Fixed handling of `--` as separator between positional arguments and flags.
This was not actually fixed in 2.14.5.
Closes [#7003](https://togithub.com/PyCQA/pylint/issues/7003), Refs [#7096](https://togithub.com/PyCQA/pylint/issues/7096)
- Report `no-self-argument` rather than `no-method-argument` for methods
with variadic arguments.
Closes [#7507](https://togithub.com/PyCQA/pylint/issues/7507)
- Fixed an issue where `syntax-error` couldn't be raised on files with
invalid encodings.
Closes [#7522](https://togithub.com/PyCQA/pylint/issues/7522)
- Fix false positive for `redefined-outer-name` when aliasing `typing`
e.g. as `t` and guarding imports under `t.TYPE_CHECKING`.
Closes [#7524](https://togithub.com/PyCQA/pylint/issues/7524)
- Fixed a crash of the `modified_iterating` checker when iterating on a set
defined as a class attribute.
Closes [#7528](https://togithub.com/PyCQA/pylint/issues/7528)
- Fix bug in scanning of names inside arguments to `typing.Literal`.
See https://peps.python.org/pep-0586/#literals-enums-and-forward-references
for details.
Refs [#3299](https://togithub.com/PyCQA/pylint/issues/3299)
## Other Changes
- Add method name to the error messages of `no-method-argument` and
`no-self-argument`.
Closes [#7507](https://togithub.com/PyCQA/pylint/issues/7507)
### [`v2.15.3`](https://togithub.com/PyCQA/pylint/releases/tag/v2.15.3)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.15.2...v2.15.3)
- Fixed a crash in the `unhashable-member` checker when using a `lambda` as a dict key.
Closes [#7453](https://togithub.com/PyCQA/pylint/issues/7453)
- Fix a crash in the `modified-iterating-dict` checker involving instance attributes.
Closes [#7461](https://togithub.com/PyCQA/pylint/issues/7461)
- `invalid-class-object` does not crash anymore when `__class__` is assigned alongside another variable.
Closes [#7467](https://togithub.com/PyCQA/pylint/issues/7467)
- Fix false positive for `global-variable-not-assigned` when a global variable is re-assigned via an `ImportFrom` node.
Closes [#4809](https://togithub.com/PyCQA/pylint/issues/4809)
- Fix false positive for `undefined-loop-variable` in `for-else` loops that use a function
having a return type annotation of `NoReturn` or `Never`.
Closes [#7311](https://togithub.com/PyCQA/pylint/issues/7311)
- `--help-msg` now accepts a comma-separated list of message IDs again.
Closes [#7471](https://togithub.com/PyCQA/pylint/issues/7471)
### [`v2.15.2`](https://togithub.com/PyCQA/pylint/releases/tag/v2.15.2)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.15.0...v2.15.2)
- Fixed a case where custom plugins specified by command line could silently fail.
Specifically, if a plugin relies on the `init-hook` option changing `sys.path` before
it can be imported, this will now emit a `bad-plugin-value` message. Before this
change, it would silently fail to register the plugin for use, but would load
any configuration, which could have unintended effects.
Fixes part of [#7264](https://togithub.com/PyCQA/pylint/issues/7264).
- Fix `used-before-assignment` for functions/classes defined in type checking guard.
Closes [#7368](https://togithub.com/PyCQA/pylint/issues/7368)
- Update `modified_iterating` checker to fix a crash with `for` loops on empty list.
Closes [#7380](https://togithub.com/PyCQA/pylint/issues/7380)
- The `docparams` extension now considers typing in Numpy style docstrings
as "documentation" for the `missing-param-doc` message.
Refs [#7398](https://togithub.com/PyCQA/pylint/issues/7398)
- Fix false positive for `unused-variable` and `unused-import` when a name is only used in a string literal type annotation.
Closes [#3299](https://togithub.com/PyCQA/pylint/issues/3299)
- Fix false positive for `too-many-function-args` when a function call is assigned to a class attribute inside the class where the function is defined.
Closes [#6592](https://togithub.com/PyCQA/pylint/issues/6592)
- Fix `used-before-assignment` for functions/classes defined in type checking guard.
Closes [#7368](https://togithub.com/PyCQA/pylint/issues/7368)
- Fix ignored files being linted when passed on stdin.
Closes [#4354](https://togithub.com/PyCQA/pylint/issues/4354)
- `missing-return-doc`, `missing-raises-doc` and `missing-yields-doc` now respect
the `no-docstring-rgx` option.
Closes [#4743](https://togithub.com/PyCQA/pylint/issues/4743)
- Don't crash on `OSError` in config file discovery.
Closes [#7169](https://togithub.com/PyCQA/pylint/issues/7169)
- `disable-next` is now correctly scoped to only the succeeding line.
Closes [#7401](https://togithub.com/PyCQA/pylint/issues/7401)
- Update `modified_iterating` checker to fix a crash with `for` loops on empty list.
Closes [#7380](https://togithub.com/PyCQA/pylint/issues/7380)
### [`v2.15.0`](https://togithub.com/PyCQA/pylint/releases/tag/v2.15.0)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.14.5...v2.15.0)
In pylint 2.15.0, we added a new check `missing-timeout` to warn of default timeout values that could cause a program to be hanging indefinitely.
We improved `pylint`'s handling of namespace packages. More packages should be linted without resorting to using the `--recursive=y` option.
We still welcome any community effort to help review, integrate, and add good/bad examples to the doc for [https://github.com/PyCQA/pylint/issues/5953](https://togithub.com/PyCQA/pylint/issues/5953). This should be doable without any `pylint` or `astroid` knowledge, so this is the perfect entrypoint if you want to contribute to `pylint` or open source without any experience with our code!
Internally, we changed the way we generate the release notes, thanks to DudeNr33. There will be no more conflict resolution to do in the changelog, and every contributor rejoice.
Marc Byrne became a maintainer, welcome to the team !
## New Checks
- Added new checker `missing-timeout` to warn of default timeout values that could cause
a program to be hanging indefinitely.
Refs [#6780](https://togithub.com/PyCQA/pylint/issues/6780)
## False Positives Fixed
- Don't report `super-init-not-called` for abstract `__init__` methods.
Closes [#3975](https://togithub.com/PyCQA/pylint/issues/3975)
- Don't report `unsupported-binary-operation` on Python <= 3.9 when using the `|` operator
with types, if one has a metaclass that overloads `__or__` or `__ror__` as appropriate.
Closes [#4951](https://togithub.com/PyCQA/pylint/issues/4951)
- Don't report `no-value-for-parameter` for dataclasses fields annotated with `KW_ONLY`.
Closes [#5767](https://togithub.com/PyCQA/pylint/issues/5767)
- Fixed inference of `Enums` when they are imported under an alias.
Closes [#5776](https://togithub.com/PyCQA/pylint/issues/5776)
- Prevent false positives when accessing `PurePath.parents` by index (not slice) on Python 3.10+.
Closes [#5832](https://togithub.com/PyCQA/pylint/issues/5832)
- `unnecessary-list-index-lookup` is now more conservative to avoid potential false positives.
Closes [#6896](https://togithub.com/PyCQA/pylint/issues/6896)
- Fix double emitting `trailing-whitespace` for multi-line docstrings.
Closes [#6936](https://togithub.com/PyCQA/pylint/issues/6936)
- `import-error` now correctly checks for `contextlib.suppress` guards on import statements.
Closes [#7270](https://togithub.com/PyCQA/pylint/issues/7270)
- Fix false positive for `no-self-argument`/`no-method-argument` when a staticmethod is applied to a function but uses a different name.
Closes [#7300](https://togithub.com/PyCQA/pylint/issues/7300)
- Fix `undefined-loop-variable` with `break` and `continue` statements in `else` blocks.
Refs [#7311](https://togithub.com/PyCQA/pylint/issues/7311)
## False Negatives Fixed
- Emit `used-before-assignment` when relying on a name that is reimported later in a function.
Closes [#4624](https://togithub.com/PyCQA/pylint/issues/4624)
- Emit `used-before-assignment` for self-referencing named expressions (`:=`) lacking
prior assignments.
Closes [#5653](https://togithub.com/PyCQA/pylint/issues/5653)
- Emit `used-before-assignment` for self-referencing assignments under if conditions.
Closes [#6643](https://togithub.com/PyCQA/pylint/issues/6643)
- Emit `modified-iterating-list` and analogous messages for dicts and sets when iterating
literals, or when using the `del` keyword.
Closes [#6648](https://togithub.com/PyCQA/pylint/issues/6648)
- Emit `used-before-assignment` when calling nested functions before assignment.
Closes [#6812](https://togithub.com/PyCQA/pylint/issues/6812)
- Emit `nonlocal-without-binding` when a nonlocal name has been assigned at a later point in the same scope.
Closes [#6883](https://togithub.com/PyCQA/pylint/issues/6883)
- Emit `using-constant-test` when testing the truth value of a variable or call result
holding a generator.
Closes [#6909](https://togithub.com/PyCQA/pylint/issues/6909)
- Rename `unhashable-dict-key` to `unhashable-member` and emit when creating sets and dicts,
not just when accessing dicts.
Closes [#7034](https://togithub.com/PyCQA/pylint/issues/7034), Closes [#7055](https://togithub.com/PyCQA/pylint/issues/7055)
## Other Bug Fixes
- Fix a failure to lint packages with `__init__.py` contained in directories lacking `__init__.py`.
Closes [#1667](https://togithub.com/PyCQA/pylint/issues/1667)
- Fixed a syntax-error crash that was not handled properly when the declared encoding of a file
was `utf-9`.
Closes [#3860](https://togithub.com/PyCQA/pylint/issues/3860)
- Fix a crash in the `not-callable` check when there is ambiguity whether an instance is being incorrectly provided to `__new__()`.
Closes [#7109](https://togithub.com/PyCQA/pylint/issues/7109)
- Fix crash when regex option raises a `re.error` exception.
Closes [#7202](https://togithub.com/PyCQA/pylint/issues/7202)
- Fix `undefined-loop-variable` from walrus in comprehension test.
Closes [#7222](https://togithub.com/PyCQA/pylint/issues/7222)
- Check for `` before removing first item from `sys.path` in `modify_sys_path`.
Closes [#7231](https://togithub.com/PyCQA/pylint/issues/7231)
- Fix sys.path pollution in parallel mode.
Closes [#7246](https://togithub.com/PyCQA/pylint/issues/7246)
- Prevent `useless-parent-delegation` for delegating to a builtin
written in C (e.g. `Exception.__init__`) with non-self arguments.
Closes [#7319](https://togithub.com/PyCQA/pylint/issues/7319)
## Other Changes
- `bad-exception-context` has been renamed to `bad-exception-cause` as it is about the cause and not the context.
Closes [#3694](https://togithub.com/PyCQA/pylint/issues/3694)
- The message for `literal-comparison` is now more explicit about the problem and the
solution.
Closes [#5237](https://togithub.com/PyCQA/pylint/issues/5237)
- `useless-super-delegation` has been renamed to `useless-parent-delegation` in order to be more generic.
Closes [#6953](https://togithub.com/PyCQA/pylint/issues/6953)
- Pylint now uses `towncrier` for changelog generation.
Refs [#6974](https://togithub.com/PyCQA/pylint/issues/6974)
- Update `astroid` to 2.12.
Refs [#7153](https://togithub.com/PyCQA/pylint/issues/7153)
- Fix crash when a type-annotated `__slots__` with no value is declared.
Closes [#7280](https://togithub.com/PyCQA/pylint/issues/7280)
## Internal Changes
- Fixed an issue where it was impossible to update functional tests output when the existing
output was impossible to parse. Instead of raising an error we raise a warning message and
let the functional test fail with a default value.
Refs [#6891](https://togithub.com/PyCQA/pylint/issues/6891)
- `pylint.testutils.primer` is now a private API.
Refs [#6905](https://togithub.com/PyCQA/pylint/issues/6905)
- We changed the way we handle the changelog internally by using towncrier.
If you're a contributor you won't have to fix merge conflicts in the
changelog anymore.
Closes [#6974](https://togithub.com/PyCQA/pylint/issues/6974)
- Pylint is now using Scorecards to implement security recommendations from the
`OpenSSF `\_. This is done in order to secure our supply chains using a combination
of automated tooling and best practices, most of which were already implemented before.
Refs [#7267](https://togithub.com/PyCQA/pylint/issues/7267)
### [`v2.14.5`](https://togithub.com/PyCQA/pylint/releases/tag/v2.14.5)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.14.4...v2.14.5)
- Fixed a crash in the `undefined-loop-variable` check when `enumerate()` is used
in a ternary expression.
Closes [#7131](https://togithub.com/PyCQA/pylint/issues/7131)
- Fixed handling of `--` as separator between positional arguments and flags.
Closes [#7003](https://togithub.com/PyCQA/pylint/issues/7003)
- Fixed the disabling of `fixme` and its interaction with `useless-suppression`.
- Allow lists of default values in parameter documentation for `Numpy` style.
Closes [#4035](https://togithub.com/PyCQA/pylint/issues/4035)
### [`v2.14.4`](https://togithub.com/PyCQA/pylint/releases/tag/v2.14.4)
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2.12.2->2.17.1Release Notes
PyCQA/pylint
### [`v2.17.1`](https://togithub.com/PyCQA/pylint/releases/tag/v2.17.1) [Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.17.0...v2.17.1) ## False Positives Fixed - Adds `asyncSetUp` to the default `defining-attr-methods` list to silence `attribute-defined-outside-init` warning when using `unittest.IsolatedAsyncioTestCase`. Refs [#8403](https://togithub.com/PyCQA/pylint/issues/8403) ## Other Bug Fixes - `--clear-cache-post-run` now also clears LRU caches for pylint utilities holding references to AST nodes. Closes [#8361](https://togithub.com/PyCQA/pylint/issues/8361) - Fix a crash when `TYPE_CHECKING` is used without importing it. Closes [#8434](https://togithub.com/PyCQA/pylint/issues/8434) - Fix a regression of `preferred-modules` where a partial match was used instead of the required full match. Closes [#8453](https://togithub.com/PyCQA/pylint/issues/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 of `is_node_in_guarded_import_block`. Refs [#8433](https://togithub.com/PyCQA/pylint/issues/8433) ### [`v2.17.0`](https://togithub.com/PyCQA/pylint/releases/tag/v2.17.0): 2.17.0 [Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.16.4...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](https://togithub.com/PyCQA/pylint/issues/6738) - Add `invalid-name` check for `TypeAlias` names. Closes [#7081](https://togithub.com/PyCQA/pylint/issues/7081) - Accept values of the form `Configuration
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