PyCQA/pylint
### [`v2.13.7`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2137)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.6...v2.13.7)
\============================
Release date: 2022-04-20
- Fix a crash caused by using the new config from 2.14.0 in 2.13.x code.
Closes [#6408](https://togithub.com/PyCQA/pylint/issues/6408)
### [`v2.13.6`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2136)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.5...v2.13.6)
\============================
Release date: 2022-04-20
- Fix a crash in the `unsupported-membership-test` checker when assigning
multiple constants to class attributes including `__iter__` via unpacking.
Closes [#6366](https://togithub.com/PyCQA/pylint/issues/6366)
- Asterisks are no longer required in Sphinx and Google style parameter documentation
for `missing-param-doc` and are parsed correctly.
Closes [#5815](https://togithub.com/PyCQA/pylint/issues/5815)
Closes [#5406](https://togithub.com/PyCQA/pylint/issues/5406)
- Fixed a false positive for `unused-variable` when a builtin specified in
`--additional-builtins` is given a type annotation.
Closes [#6388](https://togithub.com/PyCQA/pylint/issues/6388)
- Fixed an `AstroidError` in 2.13.0 raised by the `duplicate-code` checker with
`ignore-imports` or `ignore-signatures` enabled.
Closes [#6301](https://togithub.com/PyCQA/pylint/issues/6301)
### [`v2.13.5`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2135)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.4...v2.13.5)
\============================
Release date: 2022-04-06
- Fix false positive regression in 2.13.0 for `used-before-assignment` for
homonyms between variable assignments in try/except blocks and variables in
subscripts in comprehensions.
Closes [#6069](https://togithub.com/PyCQA/pylint/issues/6069)
Closes [#6136](https://togithub.com/PyCQA/pylint/issues/6136)
- `lru-cache-decorating-method` has been renamed to `cache-max-size-none` and
will only be emitted when `maxsize` is `None`.
Closes [#6180](https://togithub.com/PyCQA/pylint/issues/6180)
- Fix false positive for `unused-import` when disabling both `used-before-assignment` and `undefined-variable`.
Closes [#6089](https://togithub.com/PyCQA/pylint/issues/6089)
- Narrow the scope of the `unnecessary-ellipsis` checker to:
- functions & classes which contain both a docstring and an ellipsis.
- A body which contains an ellipsis `nodes.Expr` node & at least one other statement.
- Fix false positive for `used-before-assignment` for assignments taking place via
nonlocal declarations after an earlier type annotation.
Closes [#5394](https://togithub.com/PyCQA/pylint/issues/5394)
- Fix crash for `redefined-slots-in-subclass` when the type of the slot is not a const or a string.
Closes [#6100](https://togithub.com/PyCQA/pylint/issues/6100)
- Only raise `not-callable` when all the inferred values of a property are not callable.
Closes [#5931](https://togithub.com/PyCQA/pylint/issues/5931)
- Fix a false negative for `subclassed-final-class` when a set of other messages were disabled.
### [`v2.13.4`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2134)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.3...v2.13.4)
\============================
Release date: 2022-03-31
- Fix false positive regression in 2.13.0 for `used-before-assignment` for
homonyms between variable assignments in try/except blocks and variables in
a comprehension's filter.
Closes [#6035](https://togithub.com/PyCQA/pylint/issues/6035)
- Include `testing_pylintrc` in source and wheel distributions.
Closes [#6028](https://togithub.com/PyCQA/pylint/issues/6028)
- Fix crash in `super-init-not-called` checker when using `ctypes.Union`.
Closes [#6027](https://togithub.com/PyCQA/pylint/issues/6027)
- Fix crash for `unneccessary-ellipsis` checker when an ellipsis is used inside of a container or a lambda expression.
Closes [#6036](https://togithub.com/PyCQA/pylint/issues/6036)
Closes [#6037](https://togithub.com/PyCQA/pylint/issues/6037)
Closes [#6048](https://togithub.com/PyCQA/pylint/issues/6048)
### [`v2.13.3`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2133)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.2...v2.13.3)
\============================
Release date: 2022-03-29
- Fix false positive for `unnecessary-ellipsis` when using an ellipsis as a default argument.
Closes [#5973](https://togithub.com/PyCQA/pylint/issues/5973)
- Fix crash involving unbalanced tuple unpacking.
Closes [#5998](https://togithub.com/PyCQA/pylint/issues/5998)
- Fix false positive for 'nonexistent-operator' when repeated '-' are
separated (e.g. by parens).
Closes [#5769](https://togithub.com/PyCQA/pylint/issues/5769)
### [`v2.13.2`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2132)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.1...v2.13.2)
\============================
Release date: 2022-03-27
- Fix crash when subclassing a `namedtuple`.
Closes [#5982](https://togithub.com/PyCQA/pylint/issues/5982)
- Fix false positive for `superfluous-parens` for patterns like
"return (a or b) in iterable".
Closes [#5803](https://togithub.com/PyCQA/pylint/issues/5803)
- Fix a false negative regression in 2.13.0 where `protected-access` was not
raised on functions.
Fixes [#5989](https://togithub.com/PyCQA/pylint/issues/5989)
- Better error messages in case of crash if pylint can't write the issue template.
Refer to [#5987](https://togithub.com/PyCQA/pylint/issues/5987)
### [`v2.13.1`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2131)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.0...v2.13.1)
\============================
Release date: 2022-03-26
- Fix a regression in 2.13.0 where `used-before-assignment` was emitted for
the usage of a nonlocal in a try block.
Fixes [#5965](https://togithub.com/PyCQA/pylint/issues/5965)
- Avoid emitting `raising-bad-type` when there is inference ambiguity on
the variable being raised.
Closes [#2793](https://togithub.com/PyCQA/pylint/issues/2793)
- Loosen TypeVar default name pattern a bit to allow names with multiple uppercase
characters. E.g. `HVACModeT` or `IPAddressT`.
Closes [#5981](https://togithub.com/PyCQA/pylint/issues/5981)
- Fixed false positive for `unused-argument` when a `nonlocal` name is used
in a nested function that is returned without being called by its parent.
Closes [#5187](https://togithub.com/PyCQA/pylint/issues/5187)
- Fix program crash for `modified_iterating-list/set/dict` when the list/dict/set
being iterated through is a function call.
Closes [#5969](https://togithub.com/PyCQA/pylint/issues/5969)
- Don't emit `broken-noreturn` and `broken-collections-callable` errors
inside `if TYPE_CHECKING` blocks.
### [`v2.13.0`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2130)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.12.2...v2.13.0)
\============================
Release date: 2022-03-24
- Add missing dunder methods to `unexpected-special-method-signature` check.
- No longer emit `no-member` in for loops that reference `self` if the binary operation that
started the for loop uses a `self` that is encapsulated in tuples or lists.
Ref [PyCQA/astroid#1360](https://togithub.com/PyCQA/astroid/issues/1360)
Closes [#4826](https://togithub.com/PyCQA/pylint/issues/4826)
- Output better error message if unsupported file formats are used with `pyreverse`.
Closes [#5950](https://togithub.com/PyCQA/pylint/issues/5950)
- Fix pyreverse diagrams type hinting for classmethods and staticmethods.
- Fix pyreverse diagrams type hinting for methods returning None.
- Fix matching `--notes` options that end in a non-word character.
Closes [#5840](https://togithub.com/PyCQA/pylint/issues/5840)
- Updated the position of messages for class and function defintions to no longer cover
the complete definition. Only the `def` or `class` + the name of the class/function
are covered.
Closes [#5466](https://togithub.com/PyCQA/pylint/issues/5466)
- `using-f-string-in-unsupported-version` and `using-final-decorator-in-unsupported-version` msgids
were renamed from `W1601` and `W1602` to `W2601` and `W2602`. Disabling using these msgids will break.
This is done in order to restore consistency with the already existing msgids for `apply-builtin` and
`basestring-builtin` from the now deleted python 3K+ checker. There is now a check that we're not using
existing msgids or symbols from deleted checkers.
Closes [#5729](https://togithub.com/PyCQA/pylint/issues/5729)
- The line numbering for messages related to function arguments is now more accurate. This can
require some message disables to be relocated to updated positions.
- Add `--recursive` option to allow recursive discovery of all modules and packages in subtree. Running pylint with
`--recursive=y` option will check all discovered `.py` files and packages found inside subtree of directory provided
as parameter to pylint.
Closes [#352](https://togithub.com/PyCQA/pylint/issues/352)
- Add `modified-iterating-list`, `modified-iterating-dict` and `modified-iterating-set`,
emitted when items are added to or removed from respectively a list, dictionary or
set being iterated through.
Closes [#5348](https://togithub.com/PyCQA/pylint/issues/5348)
- Fix false-negative for `assignment-from-none` checker using list.sort() method.
closes [#5722](https://togithub.com/PyCQA/pylint/issues/5722)
- New extension `import-private-name`: indicate imports of external private packages
and objects (prefixed with `_`). It can be loaded using `load-plugins=pylint.extensions.private_import`.
Closes [#5463](https://togithub.com/PyCQA/pylint/issues/5463)
- Fixed crash from `arguments-differ` and `arguments-renamed` when methods were
defined outside the top level of a class.
Closes [#5648](https://togithub.com/PyCQA/pylint/issues/5648)
- Removed the deprecated `check_docs` extension. You can use the `docparams` checker
to get the checks previously included in `check_docs`.
Closes [#5322](https://togithub.com/PyCQA/pylint/issues/5322)
- Added a `testutil` extra require to the packaging, as `gitpython` should not be a dependency
all the time but is still required to use the primer helper code in `pylint.testutil`. You can
install it with `pip install pylint[testutil]`.
Closes [#5486](https://togithub.com/PyCQA/pylint/issues/5486)
- Reinstated checks from the python3 checker that are still useful for python 3
(`eq-without-hash`). This is now in the `pylint.extensions.eq_without_hash` optional
extension.
Closes [#5025](https://togithub.com/PyCQA/pylint/issues/5025)
- Fixed an issue where `ungrouped-imports` could not be disabled without raising
`useless-suppression`.
Ref [#2366](https://togithub.com/PyCQA/pylint/issues/2366)
- Added several checkers to deal with unicode security issues
(see `Trojan Sources `\_ and
`PEP 672 `\_ for details) that also
concern the readability of the code. In detail the following checks were added:
- `bad-file-encoding` checks that the file is encoded in UTF-8 as suggested by
`PEP8 `*.
UTF-16 and UTF-32 are `not supported by Python `*
at the moment. If this ever changes
`invalid-unicode-codec` checks that they aren't used, to allow for backwards
compatibility.
- `bidirectional-unicode` checks for bidirectional unicode characters that
could make code execution different than what the user expects.
- `invalid-character-backspace`, `invalid-character-carriage-return`,
`invalid-character-sub`, `invalid-character-esc`,
`invalid-character-zero-width-space` and `invalid-character-nul`
to check for possibly harmful unescaped characters.
Closes [#5281](https://togithub.com/PyCQA/pylint/issues/5281)
- Use the `tomli` package instead of `toml` to parse `.toml` files.
Closes [#5885](https://togithub.com/PyCQA/pylint/issues/5885)
- Fix false positive - Allow unpacking of `self` in a subclass of `typing.NamedTuple`.
Closes [#5312](https://togithub.com/PyCQA/pylint/issues/5312)
- Fixed false negative `unpacking-non-sequence` when value is an empty list.
Closes [#5707](https://togithub.com/PyCQA/pylint/issues/5707)
- Better warning messages for useless else or elif when a function returns early.
Closes [#5614](https://togithub.com/PyCQA/pylint/issues/5614)
- Fixed false positive `consider-using-dict-comprehension` when creating a dict
using a list of tuples where key AND value vary depending on the same condition.
Closes [#5588](https://togithub.com/PyCQA/pylint/issues/5588)
- Fixed false positive for `global-variable-undefined` when `global` is used with a class name
Closes [#3088](https://togithub.com/PyCQA/pylint/issues/3088)
- Fixed false positive for `unused-variable` when a `nonlocal` name is assigned as part of a multi-name assignment.
Closes [#3781](https://togithub.com/PyCQA/pylint/issues/3781)
- Fixed a crash in `unspecified-encoding` checker when providing `None`
to the `mode` argument of an `open()` call.
Closes [#5731](https://togithub.com/PyCQA/pylint/issues/5731)
- Fixed a crash involving a `NewType` named with an f-string.
Closes [#5770](https://togithub.com/PyCQA/pylint/issues/5770)
Ref [PyCQA/astroid#1400](https://togithub.com/PyCQA/astroid/issues/1400)
- Improved `bad-open-mode` message when providing `None` to the `mode`
argument of an `open()` call.
Closes [#5733](https://togithub.com/PyCQA/pylint/issues/5733)
- Added `lru-cache-decorating-method` checker with checks for the use of `functools.lru_cache`
on class methods. This is unrecommended as it creates memory leaks by never letting the instance
getting garbage collected.
Closes [#5670](https://togithub.com/PyCQA/pylint/issues/5670)
- Fixed crash with recursion error for inference of class attributes that referenced
the class itself.
Closes [#5408](https://togithub.com/PyCQA/pylint/issues/5408)
Ref [PyCQA/astroid#1392](https://togithub.com/PyCQA/astroid/issues/1392)
- Fixed false positive for `unused-argument` when a method overridden in a subclass
does nothing with the value of a keyword-only argument.
Closes [#5771](https://togithub.com/PyCQA/pylint/issues/5771)
Ref [PyCQA/astroid#1382](https://togithub.com/PyCQA/astroid/issues/1382)
- The issue template for crashes is now created for crashes which were previously not covered
by this mechanism.
Closes [#5668](https://togithub.com/PyCQA/pylint/issues/5668)
- Rewrote checker for `non-ascii-name`.
It now ensures **all** Python names are ASCII and also properly
checks the names of imports (`non-ascii-module-import`) as
well as file names (`non-ascii-file-name`) and emits their respective new warnings.
Non ASCII characters could be homoglyphs (look alike characters) and hard to
enter on a non specialized keyboard.
See `Confusable Characters in PEP 672 `\_
- When run in parallel mode `pylint` now pickles the data passed to subprocesses with
the `dill` package. The `dill` package has therefore been added as a dependency.
- An astroid issue where symlinks were not being taken into account
was fixed
Closes [#1470](https://togithub.com/PyCQA/pylint/issues/1470)
Closes [#3499](https://togithub.com/PyCQA/pylint/issues/3499)
Closes [#4302](https://togithub.com/PyCQA/pylint/issues/4302)
Closes [#4798](https://togithub.com/PyCQA/pylint/issues/4798)
Closes [#5081](https://togithub.com/PyCQA/pylint/issues/5081)
- Fix a crash in `unused-private-member` checker when analyzing code using
`type(self)` in bound methods.
Closes [#5569](https://togithub.com/PyCQA/pylint/issues/5569)
- Optimize parsing of long lines when `missing-final-newline` is enabled.
Closes [#5724](https://togithub.com/PyCQA/pylint/issues/5724)
- Fix false positives for `used-before-assignment` from using named
expressions in a ternary operator test and using that expression as
a call argument.
Closes [#5177](https://togithub.com/PyCQA/pylint/issues/5177), [#5212](https://togithub.com/PyCQA/pylint/issues/5212)
- Fix false positive for `undefined-variable` when `namedtuple` class
attributes are used as return annotations.
Closes [#5568](https://togithub.com/PyCQA/pylint/issues/5568)
- Fix false negative for `undefined-variable` and related variable messages
when the same undefined variable is used as a type annotation and is
accessed multiple times, or is used as a default argument to a function.
Closes [#5399](https://togithub.com/PyCQA/pylint/issues/5399)
- Pyreverse - add output in mermaidjs format
- Emit `used-before-assignment` instead of `undefined-variable` when attempting
to access unused type annotations.
Closes [#5713](https://togithub.com/PyCQA/pylint/issues/5713)
- Added confidence level `CONTROL_FLOW` for warnings relying on assumptions
about control flow.
- `used-before-assignment` now considers that assignments in a try block
may not have occurred when the except or finally blocks are executed.
Closes [#85](https://togithub.com/PyCQA/pylint/issues/85), [#2615](https://togithub.com/PyCQA/pylint/issues/2615)
- Fixed false negative for `used-before-assignment` when a conditional
or context manager intervened before the try statement that suggested
it might fail.
Closes [#4045](https://togithub.com/PyCQA/pylint/issues/4045)
- Fixed false negative for `used-before-assignment` in finally blocks
if an except handler did not define the assignment that might have failed
in the try block.
- Fixed extremely long processing of long lines with comma's.
Closes [#5483](https://togithub.com/PyCQA/pylint/issues/5483)
- Fixed crash on properties and inherited class methods when comparing them for
equality against an empty dict.
Closes [#5646](https://togithub.com/PyCQA/pylint/issues/5646)
- Fixed a false positive for `assigning-non-slot` when the slotted class
defined `__setattr__`.
Closes [#3793](https://togithub.com/PyCQA/pylint/issues/3793)
- Fixed a false positive for `invalid-class-object` when the object
being assigned to the `__class__` attribute is uninferable.
- Fixed false positive for `used-before-assignment` with self-referential type
annotation in conditional statements within class methods.
Closes [#5499](https://togithub.com/PyCQA/pylint/issues/5499)
- Add checker `redefined-slots-in-subclass`: Emitted when a slot is redefined in a subclass.
Closes [#5617](https://togithub.com/PyCQA/pylint/issues/5617)
- Fixed false positive for `global-variable-not-assigned` when the `del` statement is used
Closes [#5333](https://togithub.com/PyCQA/pylint/issues/5333)
- By default, pylint does no longer take files starting with `.#` into account. Those are
considered `Emacs file locks`. See
https://www.gnu.org/software/emacs/manual/html_node/elisp/File-Locks.html.
This behavior can be reverted by redefining the `ignore-patterns` option.
Closes [#367](https://togithub.com/PyCQA/pylint/issues/367)
- Fixed a false positive for `used-before-assignment` when a named expression
appears as the first value in a container.
Closes [#5112](https://togithub.com/PyCQA/pylint/issues/5112)
- `used-before-assignment` now assumes that assignments in except blocks
may not have occurred and warns accordingly.
Closes [#4761](https://togithub.com/PyCQA/pylint/issues/4761)
- When evaluating statements after an except block, `used-before-assignment`
assumes that assignments in the except blocks took place if the
corresponding try block contained a return statement.
Closes [#5500](https://togithub.com/PyCQA/pylint/issues/5500)
- Fixed a false negative for `used-before-assignment` when some but not all
except handlers defined a name relied upon after an except block when the
corresponding try block contained a return statement.
Closes [#5524](https://togithub.com/PyCQA/pylint/issues/5524)
- When evaluating statements in the `else` clause of a loop, `used-before-assignment`
assumes that assignments in the except blocks took place if the
except handlers constituted the only ways for the loop to finish without
breaking early.
Closes [#5683](https://togithub.com/PyCQA/pylint/issues/5683)
- `used-before-assignment` now checks names in try blocks.
- Fixed false positive with `used-before-assignment` for assignment expressions
in lambda statements.
Closes [#5360](https://togithub.com/PyCQA/pylint/issues/5360), [#3877](https://togithub.com/PyCQA/pylint/issues/3877)
- Fixed a false positive (affecting unreleased development) for
`used-before-assignment` involving homonyms between filtered comprehensions
and assignments in except blocks.
Closes [#5586](https://togithub.com/PyCQA/pylint/issues/5586)
- Fixed crash with slots assignments and annotated assignments.
Closes [#5479](https://togithub.com/PyCQA/pylint/issues/5479)
- Fixed crash on list comprehensions that used `type` as inner variable name.
Closes [#5461](https://togithub.com/PyCQA/pylint/issues/5461)
- Fixed crash in `use-maxsplit-arg` checker when providing the `sep` argument
to `str.split()` by keyword.
Closes [#5737](https://togithub.com/PyCQA/pylint/issues/5737)
- Fix false positive for `unused-variable` for a comprehension variable matching
an outer scope type annotation.
Closes [#5326](https://togithub.com/PyCQA/pylint/issues/5326)
- Fix false negative for `undefined-variable` for a variable used multiple times
in a comprehension matching an unused outer scope type annotation.
Closes [#5654](https://togithub.com/PyCQA/pylint/issues/5654)
- Some files in `pylint.testutils` were deprecated. In the future imports should be done from the
`pylint.testutils.functional` namespace directly.
- Fixed false positives for `no-value-for-parameter` with variadic
positional arguments.
Closes [#5416](https://togithub.com/PyCQA/pylint/issues/5416)
- `safe_infer` no longer makes an inference when given two function
definitions with differing numbers of arguments.
Closes [#3675](https://togithub.com/PyCQA/pylint/issues/3675)
- Fix `comparison-with-callable` false positive for callables that raise, such
as typing constants.
Closes [#5557](https://togithub.com/PyCQA/pylint/issues/5557)
- Fixed a crash on `__init__` nodes when the attribute was previously uninferable due to a cache
limit size. This limit can be hit when the inheritance pattern of a class (and therefore of the `__init__` attribute) is very large.
Closes [#5679](https://togithub.com/PyCQA/pylint/issues/5679)
- Fix false positive for `used-before-assignment` from a class definition
nested under a function subclassing a class defined outside the function.
Closes [#4590](https://togithub.com/PyCQA/pylint/issues/4590)
- Fix `unnecessary_dict_index_lookup` false positive when deleting a dictionary's entry.
Closes [#4716](https://togithub.com/PyCQA/pylint/issues/4716)
- Fix false positive for `used-before-assignment` when an except handler
shares a name with a test in a filtered comprehension.
Closes [#5817](https://togithub.com/PyCQA/pylint/issues/5817)
- Fix crash in `unnecessary-dict-index-lookup` checker if the output of
`items()` is assigned to a 1-tuple.
Closes [#5504](https://togithub.com/PyCQA/pylint/issues/5504)
- When invoking `pylint`, `epylint`, `symilar` or `pyreverse` by importing them in a python file
you can now pass an `argv` keyword besides patching `sys.argv`.
Closes [#5320](https://togithub.com/PyCQA/pylint/issues/5320)
- The `PyLinter` class will now be initialized with a `TextReporter`
as its reporter if none is provided.
- Fix `super-init-not-called` when parent or `self` is a `Protocol`
Closes [#4790](https://togithub.com/PyCQA/pylint/issues/4790)
- Fix false positive `not-callable` with attributes that alias `NamedTuple`
Partially closes [#1730](https://togithub.com/PyCQA/pylint/issues/1730)
- Emit `redefined-outer-name` when a nested except handler shadows an outer one.
Closes [#4434](https://togithub.com/PyCQA/pylint/issues/4434)
Closes [#5370](https://togithub.com/PyCQA/pylint/issues/5370)
- Fix false positive `super-init-not-called` for classes that inherit their `init` from
a parent.
Closes [#4941](https://togithub.com/PyCQA/pylint/issues/4941)
- `encoding` can now be supplied as a positional argument to calls that open
files without triggering `unspecified-encoding`.
Closes [#5638](https://togithub.com/PyCQA/pylint/issues/5638)
- Fatal errors now emit a score of 0.0 regardless of whether the linted module
contained any statements
Closes [#5451](https://togithub.com/PyCQA/pylint/issues/5451)
- `fatal` was added to the variables permitted in score evaluation expressions.
- The default score evaluation now uses a floor of 0.
Closes [#2399](https://togithub.com/PyCQA/pylint/issues/2399)
- Fix false negative for `consider-iterating-dictionary` during membership checks encapsulated in iterables
or `not in` checks
Closes [#5323](https://togithub.com/PyCQA/pylint/issues/5323)
- Fixed crash on uninferable decorators on Python 3.6 and 3.7
- Add checker `unnecessary-ellipsis`: Emitted when the ellipsis constant is used unnecessarily.
Closes [#5460](https://togithub.com/PyCQA/pylint/issues/5460)
- Disable checker `bad-docstring-quotes` for Python <= 3.7, because in these versions the line
numbers for decorated functions and classes are not reliable which interferes with the checker.
Closes [#3077](https://togithub.com/PyCQA/pylint/issues/3077)
- Fixed incorrect classification of Numpy-style docstring as Google-style docstring for
docstrings with property setter documentation.
Docstring classification is now based on the highest amount of matched sections instead
of the order in which the docstring styles were tried.
- Fixed detection of `arguments-differ` when superclass static
methods lacked a `@staticmethod` decorator.
Closes [#5371](https://togithub.com/PyCQA/pylint/issues/5371)
- `TypingChecker`
- Added new check `broken-noreturn` to detect broken uses of `typing.NoReturn`
if `py-version` is set to Python `3.7.1` or below.
https://bugs.python.org/issue34921
- Added new check `broken-collections-callable` to detect broken uses of `collections.abc.Callable`
if `py-version` is set to Python `3.9.1` or below.
https://bugs.python.org/issue42965
- The `testutils` for unittests now accept `end_lineno` and `end_column`. Tests
without these will trigger a `DeprecationWarning`.
- `arguments-differ` will no longer complain about method redefinitions with extra parameters
that have default values.
Closes [#1556](https://togithub.com/PyCQA/pylint/issues/1556), [#5338](https://togithub.com/PyCQA/pylint/issues/5338)
- Fixed false positive `unexpected-keyword-arg` for decorators.
Closes [#258](https://togithub.com/PyCQA/pylint/issues/258)
- Importing the deprecated stdlib module `xml.etree.cElementTree` now emits `deprecated_module`.
Closes [#5862](https://togithub.com/PyCQA/pylint/issues/5862)
- Disables for `deprecated-module` and similar warnings for stdlib features deprecated
in newer versions of Python no longer raise `useless-suppression` when linting with
older Python interpreters where those features are not yet deprecated.
- Importing the deprecated stdlib module `distutils` now emits `deprecated_module` on Python 3.10+.
- `missing-raises-doc` will now check the class hierarchy of the raised exceptions
.. code-block:: python
def my_function()
"""My function.
Raises:
Exception: if something fails
"""
raise ValueError
Closes [#4955](https://togithub.com/PyCQA/pylint/issues/4955)
- Allow disabling `duplicate-code` with a disable comment when running through
pylint.
Closes [#214](https://togithub.com/PyCQA/pylint/issues/214)
- Improve `invalid-name` check for `TypeVar` names.
The accepted pattern can be customized with `--typevar-rgx`.
Closes [#3401](https://togithub.com/PyCQA/pylint/issues/3401)
- Added new checker `typevar-name-missing-variance`. Emitted when a covariant
or contravariant `TypeVar` does not end with `_co` or `_contra` respectively or
when a `TypeVar` is not either but has a suffix.
- Allow usage of mccabe 0.7.x release
Closes [#5878](https://togithub.com/PyCQA/pylint/issues/5878)
- Fix `unused-private-member` false positive when accessing private methods through `property`.
Closes [#4756](https://togithub.com/PyCQA/pylint/issues/4756)
### [`v2.12.2`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2122)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.12.1...v2.12.2)
\============================
Release date: 2021-11-25
- Fixed a false positive for `unused-import` where everything
was not analyzed properly inside typing guards.
- Fixed a false-positive regression for `used-before-assignment` for
typed variables in the body of class methods that reference the same class
Closes [#5342](https://togithub.com/PyCQA/pylint/issues/5342)
- Specified that the `ignore-paths` option considers "" to represent a
windows directory delimiter instead of a regular expression escape
character.
- Fixed a crash with the `ignore-paths` option when invoking the option
via the command line.
Closes [#5437](https://togithub.com/PyCQA/pylint/issues/5437)
- Fixed handling of Sphinx-style parameter docstrings with asterisks. These
should be escaped with by prepending a "".
Closes [#5406](https://togithub.com/PyCQA/pylint/issues/5406)
- Add `endLine` and `endColumn` keys to output of `JSONReporter`.
Closes [#5380](https://togithub.com/PyCQA/pylint/issues/5380)
- Fixed handling of Google-style parameter specifications where descriptions
are on the line following the parameter name. These were generating
false positives for `missing-param-doc`.
Closes [#5452](https://togithub.com/PyCQA/pylint/issues/5452)
- Fix false negative for `consider-iterating-dictionary` during membership checks encapsulated in iterables
or `not in` checks
Closes [#5323](https://togithub.com/PyCQA/pylint/issues/5323)
- `unused-import` now check all ancestors for typing guards
Closes [#5316](https://togithub.com/PyCQA/pylint/issues/5316)
### [`v2.12.1`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2121)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.12.0...v2.12.1)
\============================
Release date: 2021-11-25
- Require Python `3.6.2` to run pylint.
Closes [#5065](https://togithub.com/PyCQA/pylint/issues/5065)
### [`v2.12.0`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2120)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.11.1...v2.12.0)
\============================
Release date: 2021-11-24
- Upgrade astroid to 2.9.0
Closes [#4982](https://togithub.com/PyCQA/pylint/issues/4982)
- Add ability to add `end_line` and `end_column` to the `--msg-template` option.
With the standard `TextReporter` this will add the line and column number of the
end of a node to the output of Pylint. If these numbers are unknown, they are represented
by an empty string.
- Introduced primer tests and a configuration tests framework. The helper classes available in
`pylint/testutil/` are still unstable and might be modified in the near future.
Closes [#4412](https://togithub.com/PyCQA/pylint/issues/4412) [#5287](https://togithub.com/PyCQA/pylint/issues/5287)
- Fix `install graphiz` message which isn't needed for puml output format.
- `MessageTest` of the unittest `testutil` now requires the `confidence` attribute
to match the expected value. If none is provided it is set to `UNDEFINED`.
- `add_message` of the unittest `testutil` now actually handles the `col_offset` parameter
and allows it to be checked against actual output in a test.
- Fix a crash in the `check_elif` extensions where an undetected if in a comprehension
with an if statement within a f-string resulted in an out of range error. The checker no
longer relies on counting if statements anymore and uses known if statements locations instead.
It should not crash on badly parsed if statements anymore.
- Fix `simplify-boolean-expression` when condition can be inferred as False.
Closes [#5200](https://togithub.com/PyCQA/pylint/issues/5200)
- Fix exception when pyreverse parses `property function` of a class.
- The functional `testutils` now accept `end_lineno` and `end_column`. Expected
output files without these will trigger a `DeprecationWarning`. Expected output files
can be easily updated with the `python tests/test_functional.py --update-functional-output` command.
- The functional `testutils` now correctly check the distinction between `HIGH` and
`UNDEFINED` confidence. Expected output files without defined `confidence` levels will now
trigger a `DeprecationWarning`. Expected output files can be easily updated with the
`python tests/test_functional.py --update-functional-output` command.
- The functional test runner now supports the option `min_pyver_end_position` to control on which python
versions the `end_lineno` and `end_column` attributes should be checked. The default value is 3.8.
- Fix `accept-no-yields-doc` and `accept-no-return-doc` not allowing missing `yield` or
`return` documentation when a docstring is partially correct
Closes [#5223](https://togithub.com/PyCQA/pylint/issues/5223)
- Add an optional extension `consider-using-any-or-all` : Emitted when a `for` loop only
produces a boolean and could be replaced by `any` or `all` using a generator. Also suggests
a suitable any or all statement.
Closes [#5008](https://togithub.com/PyCQA/pylint/issues/5008)
- Properly identify parameters with no documentation and add new message called `missing-any-param-doc`
Closes [#3799](https://togithub.com/PyCQA/pylint/issues/3799)
- Add checkers `overridden-final-method` & `subclassed-final-class`
Closes [#3197](https://togithub.com/PyCQA/pylint/issues/3197)
- Fixed `protected-access` for accessing of attributes and methods of inner classes
Closes [#3066](https://togithub.com/PyCQA/pylint/issues/3066)
- Added support for `ModuleNotFoundError` (`import-error` and `no-name-in-module`).
`ModuleNotFoundError` inherits from `ImportError` and was added in Python `3.6`
- `undefined-variable` now correctly flags variables which only receive a type annotations
and never get assigned a value
Closes [#5140](https://togithub.com/PyCQA/pylint/issues/5140)
- `undefined-variable` now correctly considers the line numbering and order of classes
used in metaclass declarations
Closes [#4031](https://togithub.com/PyCQA/pylint/issues/4031)
- `used-before-assignment` now correctly considers references to classes as type annotation
or default values in first-level methods
Closes [#3771](https://togithub.com/PyCQA/pylint/issues/3771)
- `undefined-variable` and `unused-variable` now correctly trigger for assignment expressions
in functions defaults
Fixes part of [#3688](https://togithub.com/PyCQA/pylint/issues/3688)
- `undefined-variable` now correctly triggers for assignment expressions in if ... else statements
This includes a basic form of control flow inference for if ... else statements using
constant boolean values
Closes [#3688](https://togithub.com/PyCQA/pylint/issues/3688)
- Added the `--enable-all-extensions` command line option. It will load all available extensions
which can be listed by running `--list-extensions`
- Fix bug with importing namespace packages with relative imports
Closes [#2967](https://togithub.com/PyCQA/pylint/issues/2967) and [#5131](https://togithub.com/PyCQA/pylint/issues/5131)
- Improve and flatten `unused-wildcard-import` message
Closes [#3859](https://togithub.com/PyCQA/pylint/issues/3859)
- In length checker, `len-as-condition` has been renamed as
`use-implicit-booleaness-not-len` in order to be consistent with
`use-implicit-booleaness-not-comparison`.
- Created new `UnsupportedVersionChecker` checker class that includes checks for features
not supported by all versions indicated by a `py-version`.
- Added `using-f-string-in-unsupported-version` checker. Issued when `py-version`
is set to a version that does not support f-strings (< 3.6)
- Fix `useless-super-delegation` false positive when default keyword argument is a variable.
- Properly emit `duplicate-key` when Enum members are duplicate dictionary keys
Closes [#5150](https://togithub.com/PyCQA/pylint/issues/5150)
- Use `py-version` setting for alternative union syntax check (PEP 604),
instead of the Python interpreter version.
- Subclasses of `dict` are regarded as reversible by the `bad-reversed-sequence` checker
(Python 3.8 onwards).
Closes [#4981](https://togithub.com/PyCQA/pylint/issues/4981)
- Support configuring mixin class pattern via `mixin-class-rgx`
- Added new checker `use-implicit-booleaness-not-comparison`: Emitted when
collection literal comparison is being used to check for emptiness.
Closes [#4774](https://togithub.com/PyCQA/pylint/issues/4774)
- `mising-param-doc` now correctly parses asterisks for variable length and
keyword parameters
Closes [#3733](https://togithub.com/PyCQA/pylint/issues/3733)
- `mising-param-doc` now correctly handles Numpy parameter documentation without
explicit typing
Closes [#5222](https://togithub.com/PyCQA/pylint/issues/5222)
- `pylint` no longer crashes when checking assignment expressions within if-statements
Closes [#5178](https://togithub.com/PyCQA/pylint/issues/5178)
- Update \`\`literal-comparison\`\`\` checker to ignore tuple literals
Closes [#3031](https://togithub.com/PyCQA/pylint/issues/3031)
- Normalize the input to the `ignore-paths` option to allow both Posix and
Windows paths
Closes [#5194](https://togithub.com/PyCQA/pylint/issues/5194)
- Fix double emitting of `not-callable` on inferable `properties`
Closes [#4426](https://togithub.com/PyCQA/pylint/issues/4426)
- `self-cls-assignment` now also considers tuple assignment
- Fix `missing-function-docstring` not being able to check `__init__` and other
magic methods even if the `no-docstring-rgx` setting was set to do so
- Added `using-final-decorator-in-unsupported-version` checker. Issued when `py-version`
is set to a version that does not support `typing.final` (< 3.8)
- Added configuration option `exclude-too-few-public-methods` to allow excluding
classes from the `min-public-methods` checker.
Closes [#3370](https://togithub.com/PyCQA/pylint/issues/3370)
- The `--jobs` parameter now fallbacks to 1 if the host operating system does not
have functioning shared semaphore implementation.
Closes [#5216](https://togithub.com/PyCQA/pylint/issues/5216)
- Fix crash for `unused-private-member` when checking private members on `__class__`
Closes [#5261](https://togithub.com/PyCQA/pylint/issues/5261)
- Crashes when a list is encountered in a toml configuration do not happen anymore.
Closes [#4580](https://togithub.com/PyCQA/pylint/issues/4580)
- Moved `misplaced-comparison-constant` to its own extension `comparison_placement`.
This checker was opinionated and now no longer a default. It can be reactived by adding
`pylint.extensions.comparison_placement` to `load-plugins` in your config.
Closes [#1064](https://togithub.com/PyCQA/pylint/issues/1064)
- A new `bad-configuration-section` checker was added that will emit for misplaced option
in pylint's top level namespace for toml configuration. Top-level dictionaries or option defined
in the wrong section will still silently not be taken into account, which is tracked in a
follow-up issue.
Follow-up in [#5259](https://togithub.com/PyCQA/pylint/issues/5259)
- Fix crash for `protected-access` on (outer) class traversal
- Added new checker `useless-with-lock` to find incorrect usage of with statement and threading module locks.
Emitted when `with threading.Lock():` is used instead of `with lock_instance:`.
Closes [#5208](https://togithub.com/PyCQA/pylint/issues/5208)
- Make yn validator case insensitive, to allow for `True` and `False` in config files.
- Fix crash on `open()` calls when the `mode` argument is not a simple string.
Partially closes [#5321](https://togithub.com/PyCQA/pylint/issues/5321)
- Inheriting from a class that implements `__class_getitem__` no longer raises `inherit-non-class`.
- Pyreverse - Add the project root directory to sys.path
Closes [#2479](https://togithub.com/PyCQA/pylint/issues/2479)
- Don't emit `consider-using-f-string` if `py-version` is set to Python < `3.6`.
`f-strings` were added in Python `3.6`
Closes [#5019](https://togithub.com/PyCQA/pylint/issues/5019)
- Fix regression for `unspecified-encoding` with `pathlib.Path.read_text()`
Closes [#5029](https://togithub.com/PyCQA/pylint/issues/5029)
- Don't emit `consider-using-f-string` if the variables to be interpolated include a backslash
- Fixed false positive for `cell-var-from-loop` when variable is used as the default
value for a keyword-only parameter.
Closes [#5012](https://togithub.com/PyCQA/pylint/issues/5012)
- Fix false-positive `undefined-variable` with `Lambda`, `IfExp`, and
assignment expression.
- Fix false-positive `useless-suppression` for `wrong-import-order`
Closes [#2366](https://togithub.com/PyCQA/pylint/issues/2366)
- Fixed `toml` dependency issue
Closes [#5066](https://togithub.com/PyCQA/pylint/issues/5066)
- Fix false-positive `useless-suppression` for `line-too-long`
Closes [#4212](https://togithub.com/PyCQA/pylint/issues/4212)
- Fixed `invalid-name` not checking parameters of overwritten base `object` methods
Closes [#3614](https://togithub.com/PyCQA/pylint/issues/3614)
- Fixed crash in `consider-using-f-string` if `format` is not called
Closes [#5058](https://togithub.com/PyCQA/pylint/issues/5058)
- Fix crash with `AssignAttr` in `if TYPE_CHECKING` blocks.
Closes [#5111](https://togithub.com/PyCQA/pylint/issues/5111)
- Improve node information for `invalid-name` on function argument.
- Prevent return type checkers being called on functions with ellipses as body
Closes [#4736](https://togithub.com/PyCQA/pylint/issues/4736)
- Add `is_sys_guard` and `is_typing_guard` helper functions from astroid
to `pylint.checkers.utils`.
- Fix regression on ClassDef inference
Closes [#5030](https://togithub.com/PyCQA/pylint/issues/5030)
Closes [#5036](https://togithub.com/PyCQA/pylint/issues/5036)
- Fix regression on Compare node inference
Closes [#5048](https://togithub.com/PyCQA/pylint/issues/5048)
- Fix false-positive `isinstance-second-argument-not-valid-type` with `typing.Callable`.
Closes [#3507](https://togithub.com/PyCQA/pylint/issues/3507)
Closes [#5087](https://togithub.com/PyCQA/pylint/issues/5087)
- It is now recommended to do `pylint` development on `Python` 3.8 or higher. This
allows using the latest `ast` parser.
- All standard jobs in the `pylint` CI now run on `Python` 3.8 by default. We still
support python 3.6 and 3.7 and run tests for those interpreters.
- `TypingChecker`
- Fix false-negative for `deprecated-typing-alias` and `consider-using-alias`
with `typing.Type` + `typing.Callable`.
### [`v2.11.1`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2111)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.11.0...v2.11.1)
\============================
Release date: 2021-09-16
- `unspecified-encoding` now checks the encoding of `pathlib.Path()` correctly
Closes [#5017](https://togithub.com/PyCQA/pylint/issues/5017)
### [`v2.11.0`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2110)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.10.2...v2.11.0)
\============================
Release date: 2021-09-16
- The python3 porting mode checker and it's `py3k` option were removed. You can still find it in older pylint
versions.
- `raising-bad-type` is now properly emitted when raising a string
- Added new extension `SetMembershipChecker` with `use-set-for-membership` check:
Emitted when using an in-place defined `list` or `tuple` to do a membership test. `sets` are better optimized for that.
Closes [#4776](https://togithub.com/PyCQA/pylint/issues/4776)
- Added `py-version` config key (if `[MASTER]` section). Used for version dependent checks.
Will default to whatever Python version pylint is executed with.
- `CodeStyleChecker`
- Added `consider-using-assignment-expr`: Emitted when an assignment is directly followed by an if statement
and both can be combined by using an assignment expression `:=`. Requires Python 3.8
Closes [#4862](https://togithub.com/PyCQA/pylint/issues/4862)
- Added `consider-using-f-string`: Emitted when .format() or '%' is being used to format a string.
Closes [#3592](https://togithub.com/PyCQA/pylint/issues/3592)
- Fix false positive for `consider-using-with` if a context manager is assigned to a
variable in different paths of control flow (e. g. if-else clause).
Closes [#4751](https://togithub.com/PyCQA/pylint/issues/4751)
- https is now preferred in the documentation and http://pylint.pycqa.org correctly redirect to https://pylint.pycqa.org
Closes [#3802](https://togithub.com/PyCQA/pylint/issues/3802)
- Fix false positive for `function-redefined` for simple type annotations
Closes [#4936](https://togithub.com/PyCQA/pylint/issues/4936)
- Fix false positive for `protected-access` if a protected member is used in type hints of function definitions
- Fix false positive `dict-iter-missing-items` for dictionaries only using tuples as keys
Closes [#3282](https://togithub.com/PyCQA/pylint/issues/3282)
- The `unspecified-encoding` checker now also checks calls to `pathlib.Path().read_text()`
and `pathlib.Path().write_text()`
Closes [#4945](https://togithub.com/PyCQA/pylint/issues/4945)
- Fix false positive `superfluous-parens` for tuples created with inner tuples
Closes [#4907](https://togithub.com/PyCQA/pylint/issues/4907)
- Fix false positive `unused-private-member` for accessing attributes in a class using `cls`
Closes [#4849](https://togithub.com/PyCQA/pylint/issues/4849)
- Fix false positive `unused-private-member` for private staticmethods accessed in classmethods.
Closes [#4849](https://togithub.com/PyCQA/pylint/issues/4849)
- Extended `consider-using-in` check to work for attribute access.
- Setting `min-similarity-lines` to 0 now makes the similarty checker stop checking for duplicate code
Closes [#4901](https://togithub.com/PyCQA/pylint/issues/4901)
- Fix a bug where pylint complained if the cache's parent directory does not exist
Closes [#4900](https://togithub.com/PyCQA/pylint/issues/4900)
- The `global-variable-not-assigned` checker now catches global variables that are never reassigned in a
local scope and catches (reassigned) functions
Closes [#1375](https://togithub.com/PyCQA/pylint/issues/1375)
Closes [#330](https://togithub.com/PyCQA/pylint/issues/330)
- Fix false positives for invalid-all-format that are lists or tuples at runtime
Closes [#4711](https://togithub.com/PyCQA/pylint/issues/4711)
- Fix `no-self-use` and `docparams extension` for async functions and methods.
- Add documentation for `pyreverse` and `symilar`
Closes [#4616](https://togithub.com/PyCQA/pylint/issues/4616)
- Non symbolic messages with the wrong capitalisation now correctly trigger `use-symbolic-message-instead`
Closes [#5000](https://togithub.com/PyCQA/pylint/issues/5000)
- The `consider-iterating-dictionary` checker now also considers membership checks
Closes [#4069](https://togithub.com/PyCQA/pylint/issues/4069)
- The `invalid-name` message is now more detailed when using multiple naming style regexes.
### [`v2.10.2`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2102)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.10.1...v2.10.2)
\============================
Release date: 2021-08-21
- We now use platformdirs instead of appdirs since the latter is not maintained.
Closes [#4886](https://togithub.com/PyCQA/pylint/issues/4886)
- Fix a crash in the checker raising `shallow-copy-environ` when failing to infer
on `copy.copy`
Closes [#4891](https://togithub.com/PyCQA/pylint/issues/4891)
### [`v2.10.1`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2101)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.10.0...v2.10.1)
\============================
Release date: 2021-08-20
- pylint does not crash when PYLINT_HOME does not exist.
Closes [#4883](https://togithub.com/PyCQA/pylint/issues/4883)
### [`v2.10.0`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2100)
[Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.9.6...v2.10.0)
\============================
Release date: 2021-08-20
- pyreverse: add option to produce colored output.
Closes [#4488](https://togithub.com/PyCQA/pylint/issues/4488)
- pyreverse: add output in PlantUML format.
Closes [#4498](https://togithub.com/PyCQA/pylint/issues/4498)
- `consider-using-with` is no longer triggered if a context manager is returned from a function.
Closes [#4748](https://togithub.com/PyCQA/pylint/issues/4748)
- pylint does not crash with a traceback anymore when a file is problematic. It
creates a template text file for opening an issue on the bug tracker instead.
The linting can go on for other non problematic files instead of being impossible.
- pyreverse: Show class has-a relationships inferred from the type-hint
Closes [#4744](https://togithub.com/PyCQA/pylint/issues/4744)
- Fixed a crash when importing beyond the top level package during `import-error`
message creation
Closes [#4775](https://togithub.com/PyCQA/pylint/issues/4775)
- Added `ignored-parents` option to the design checker to ignore specific
classes from the `too-many-ancestors` check (R0901).
Partially closes [#3057](https://togithub.com/PyCQA/pylint/issues/3057)
- Added `unspecified-encoding`: Emitted when open() is called without specifying an encoding
Closes [#3826](https://togithub.com/PyCQA/pylint/issues/3826)
- Improved the Similarity checker performance. Fix issue with `--min-similarity-lines` used with `--jobs`.
Close [#4120](https://togithub.com/PyCQA/pylint/issues/4120)
Close [#4118](https://togithub.com/PyCQA/pylint/issues/4118)
- Don't emit `no-member` error if guarded behind if statement.
Ref [#1162](https://togithub.com/PyCQA/pylint/issues/1162)
Closes [#1990](https://togithub.com/PyCQA/pylint/issues/1990)
Closes [#4168](https://togithub.com/PyCQA/pylint/issues/4168)
- The default for `PYLINTHOME` is now the standard `XDG_CACHE_HOME`, and pylint now uses `appdirs`.
Closes [#3878](https://togithub.com/PyCQA/pylint/issues/3878)
- Added `use-list-literal`: Emitted when `list()` is called with no arguments instead of using `[]`
Closes [#4365](https://togithub.com/PyCQA/pylint/issues/4365)
- Added `use-dict-literal`: Emitted when `dict()` is called with no arguments instead of using `{}`
Closes [#4365](https://togithub.com/PyCQA/pylint/issues/4365)
- Added optional extension `consider-ternary-expression`: Emitted whenever a variable is assigned in both branches of an if/else block.
Closes # 4366
- Added optional extension `while-used`: Emitted whenever a `while` loop is used.
Closes # 4367
- Added `forgotten-debug-statement`: Emitted when `breakpoint`, `pdb.set_trace` or `sys.breakpointhook` calls are found
Closes [#3692](https://togithub.com/PyCQA/pylint/issues/3692)
- Fix false-positive of `unused-private-member` when using nested functions in a class
Closes [#4673](https://togithub.com/PyCQA/pylint/issues/4673)
- Fix crash for `unused-private-member` that occurred with nested attributes.
Closes [#4755](https://togithub.com/PyCQA/pylint/issues/4755)
- Fix a false positive for `unused-private-member` with class names
Closes [#4681](https://togithub.com/PyCQA/pylint/issues/4681)
- Fix false positives for `superfluous-parens` with walrus operator, ternary operator and inside list comprehension.
Closes [#2818](https://togithub.com/PyCQA/pylint/issues/2818)
Closes [#3249](https://togithub.com/PyCQA/pylint/issues/3249)
Closes [#3608](https://togithub.com/PyCQA/pylint/issues/3608)
Closes [#4346](https://togithub.com/PyCQA/pylint/issues/4346)
- Added `format-string-without-interpolation` checker: Emitted when formatting is applied to a string without any variables to be replaced
Closes [#4042](https://togithub.com/PyCQA/pylint/issues/4042)
- Refactor of `--list-msgs` & `--list-msgs-enabled`: both options now show whether messages are emittable with the current interpreter.
Closes [#4778](https://togithub.com/PyCQA/pylint/issues/4778)
- Fix false negative for `used-before-assignment` when the variable is assigned
in an exception handler, but used outside of the handler.
Closes [#626](https://togithub.com/PyCQA/pylint/issues/626)
- Added `disable-next` option: allows using `# pylint: disable-next=msgid` to disable a message for the following line
Closes [#1682](https://togithub.com/PyCQA/pylint/issues/1682)
- Added `redundant-u-string-prefix` checker: Emitted when the u prefix is added to a string
Closes [#4102](https://togithub.com/PyCQA/pylint/issues/4102)
- Fixed `cell-var-from-loop` checker: handle cell variables in comprehensions within functions,
and function default argument expressions. Also handle basic variable shadowing.
Closes [#2846](https://togithub.com/PyCQA/pylint/issues/2846)
Closes [#3107](https://togithub.com/PyCQA/pylint/issues/3107)
- Fixed bug with `cell-var-from-loop` checker: it no longer has false negatives when
both `unused-variable` and `used-before-assignment` are disabled.
- Fix false positive for `invalid-all-format` if the list or tuple builtin functions are used
Closes [#4711](https://togithub.com/PyCQA/pylint/issues/4711)
- Config files can now contain environment variables
Closes [#3839](https://togithub.com/PyCQA/pylint/issues/3839)
- Fix false-positive `used-before-assignment` with an assignment expression in a `Return` node
Closes [#4828](https://togithub.com/PyCQA/pylint/issues/4828)
- Added
Configuration
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This PR contains the following updates:
==1.6.5
->==2.13.7
Release Notes
PyCQA/pylint
### [`v2.13.7`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2137) [Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.6...v2.13.7) \============================ Release date: 2022-04-20 - Fix a crash caused by using the new config from 2.14.0 in 2.13.x code. Closes [#6408](https://togithub.com/PyCQA/pylint/issues/6408) ### [`v2.13.6`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2136) [Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.5...v2.13.6) \============================ Release date: 2022-04-20 - Fix a crash in the `unsupported-membership-test` checker when assigning multiple constants to class attributes including `__iter__` via unpacking. Closes [#6366](https://togithub.com/PyCQA/pylint/issues/6366) - Asterisks are no longer required in Sphinx and Google style parameter documentation for `missing-param-doc` and are parsed correctly. Closes [#5815](https://togithub.com/PyCQA/pylint/issues/5815) Closes [#5406](https://togithub.com/PyCQA/pylint/issues/5406) - Fixed a false positive for `unused-variable` when a builtin specified in `--additional-builtins` is given a type annotation. Closes [#6388](https://togithub.com/PyCQA/pylint/issues/6388) - Fixed an `AstroidError` in 2.13.0 raised by the `duplicate-code` checker with `ignore-imports` or `ignore-signatures` enabled. Closes [#6301](https://togithub.com/PyCQA/pylint/issues/6301) ### [`v2.13.5`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2135) [Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.4...v2.13.5) \============================ Release date: 2022-04-06 - Fix false positive regression in 2.13.0 for `used-before-assignment` for homonyms between variable assignments in try/except blocks and variables in subscripts in comprehensions. Closes [#6069](https://togithub.com/PyCQA/pylint/issues/6069) Closes [#6136](https://togithub.com/PyCQA/pylint/issues/6136) - `lru-cache-decorating-method` has been renamed to `cache-max-size-none` and will only be emitted when `maxsize` is `None`. Closes [#6180](https://togithub.com/PyCQA/pylint/issues/6180) - Fix false positive for `unused-import` when disabling both `used-before-assignment` and `undefined-variable`. Closes [#6089](https://togithub.com/PyCQA/pylint/issues/6089) - Narrow the scope of the `unnecessary-ellipsis` checker to: - functions & classes which contain both a docstring and an ellipsis. - A body which contains an ellipsis `nodes.Expr` node & at least one other statement. - Fix false positive for `used-before-assignment` for assignments taking place via nonlocal declarations after an earlier type annotation. Closes [#5394](https://togithub.com/PyCQA/pylint/issues/5394) - Fix crash for `redefined-slots-in-subclass` when the type of the slot is not a const or a string. Closes [#6100](https://togithub.com/PyCQA/pylint/issues/6100) - Only raise `not-callable` when all the inferred values of a property are not callable. Closes [#5931](https://togithub.com/PyCQA/pylint/issues/5931) - Fix a false negative for `subclassed-final-class` when a set of other messages were disabled. ### [`v2.13.4`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2134) [Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.3...v2.13.4) \============================ Release date: 2022-03-31 - Fix false positive regression in 2.13.0 for `used-before-assignment` for homonyms between variable assignments in try/except blocks and variables in a comprehension's filter. Closes [#6035](https://togithub.com/PyCQA/pylint/issues/6035) - Include `testing_pylintrc` in source and wheel distributions. Closes [#6028](https://togithub.com/PyCQA/pylint/issues/6028) - Fix crash in `super-init-not-called` checker when using `ctypes.Union`. Closes [#6027](https://togithub.com/PyCQA/pylint/issues/6027) - Fix crash for `unneccessary-ellipsis` checker when an ellipsis is used inside of a container or a lambda expression. Closes [#6036](https://togithub.com/PyCQA/pylint/issues/6036) Closes [#6037](https://togithub.com/PyCQA/pylint/issues/6037) Closes [#6048](https://togithub.com/PyCQA/pylint/issues/6048) ### [`v2.13.3`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2133) [Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.2...v2.13.3) \============================ Release date: 2022-03-29 - Fix false positive for `unnecessary-ellipsis` when using an ellipsis as a default argument. Closes [#5973](https://togithub.com/PyCQA/pylint/issues/5973) - Fix crash involving unbalanced tuple unpacking. Closes [#5998](https://togithub.com/PyCQA/pylint/issues/5998) - Fix false positive for 'nonexistent-operator' when repeated '-' are separated (e.g. by parens). Closes [#5769](https://togithub.com/PyCQA/pylint/issues/5769) ### [`v2.13.2`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2132) [Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.1...v2.13.2) \============================ Release date: 2022-03-27 - Fix crash when subclassing a `namedtuple`. Closes [#5982](https://togithub.com/PyCQA/pylint/issues/5982) - Fix false positive for `superfluous-parens` for patterns like "return (a or b) in iterable". Closes [#5803](https://togithub.com/PyCQA/pylint/issues/5803) - Fix a false negative regression in 2.13.0 where `protected-access` was not raised on functions. Fixes [#5989](https://togithub.com/PyCQA/pylint/issues/5989) - Better error messages in case of crash if pylint can't write the issue template. Refer to [#5987](https://togithub.com/PyCQA/pylint/issues/5987) ### [`v2.13.1`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2131) [Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.13.0...v2.13.1) \============================ Release date: 2022-03-26 - Fix a regression in 2.13.0 where `used-before-assignment` was emitted for the usage of a nonlocal in a try block. Fixes [#5965](https://togithub.com/PyCQA/pylint/issues/5965) - Avoid emitting `raising-bad-type` when there is inference ambiguity on the variable being raised. Closes [#2793](https://togithub.com/PyCQA/pylint/issues/2793) - Loosen TypeVar default name pattern a bit to allow names with multiple uppercase characters. E.g. `HVACModeT` or `IPAddressT`. Closes [#5981](https://togithub.com/PyCQA/pylint/issues/5981) - Fixed false positive for `unused-argument` when a `nonlocal` name is used in a nested function that is returned without being called by its parent. Closes [#5187](https://togithub.com/PyCQA/pylint/issues/5187) - Fix program crash for `modified_iterating-list/set/dict` when the list/dict/set being iterated through is a function call. Closes [#5969](https://togithub.com/PyCQA/pylint/issues/5969) - Don't emit `broken-noreturn` and `broken-collections-callable` errors inside `if TYPE_CHECKING` blocks. ### [`v2.13.0`](https://togithub.com/PyCQA/pylint/blob/HEAD/ChangeLog#Whats-New-in-Pylint-2130) [Compare Source](https://togithub.com/PyCQA/pylint/compare/v2.12.2...v2.13.0) \============================ Release date: 2022-03-24 - Add missing dunder methods to `unexpected-special-method-signature` check. - No longer emit `no-member` in for loops that reference `self` if the binary operation that started the for loop uses a `self` that is encapsulated in tuples or lists. Ref [PyCQA/astroid#1360](https://togithub.com/PyCQA/astroid/issues/1360) Closes [#4826](https://togithub.com/PyCQA/pylint/issues/4826) - Output better error message if unsupported file formats are used with `pyreverse`. Closes [#5950](https://togithub.com/PyCQA/pylint/issues/5950) - Fix pyreverse diagrams type hinting for classmethods and staticmethods. - Fix pyreverse diagrams type hinting for methods returning None. - Fix matching `--notes` options that end in a non-word character. Closes [#5840](https://togithub.com/PyCQA/pylint/issues/5840) - Updated the position of messages for class and function defintions to no longer cover the complete definition. Only the `def` or `class` + the name of the class/function are covered. Closes [#5466](https://togithub.com/PyCQA/pylint/issues/5466) - `using-f-string-in-unsupported-version` and `using-final-decorator-in-unsupported-version` msgids were renamed from `W1601` and `W1602` to `W2601` and `W2602`. Disabling using these msgids will break. This is done in order to restore consistency with the already existing msgids for `apply-builtin` and `basestring-builtin` from the now deleted python 3K+ checker. There is now a check that we're not using existing msgids or symbols from deleted checkers. Closes [#5729](https://togithub.com/PyCQA/pylint/issues/5729) - The line numbering for messages related to function arguments is now more accurate. This can require some message disables to be relocated to updated positions. - Add `--recursive` option to allow recursive discovery of all modules and packages in subtree. Running pylint with `--recursive=y` option will check all discovered `.py` files and packages found inside subtree of directory provided as parameter to pylint. Closes [#352](https://togithub.com/PyCQA/pylint/issues/352) - Add `modified-iterating-list`, `modified-iterating-dict` and `modified-iterating-set`, emitted when items are added to or removed from respectively a list, dictionary or set being iterated through. Closes [#5348](https://togithub.com/PyCQA/pylint/issues/5348) - Fix false-negative for `assignment-from-none` checker using list.sort() method. closes [#5722](https://togithub.com/PyCQA/pylint/issues/5722) - New extension `import-private-name`: indicate imports of external private packages and objects (prefixed with `_`). It can be loaded using `load-plugins=pylint.extensions.private_import`. Closes [#5463](https://togithub.com/PyCQA/pylint/issues/5463) - Fixed crash from `arguments-differ` and `arguments-renamed` when methods were defined outside the top level of a class. Closes [#5648](https://togithub.com/PyCQA/pylint/issues/5648) - Removed the deprecated `check_docs` extension. You can use the `docparams` checker to get the checks previously included in `check_docs`. Closes [#5322](https://togithub.com/PyCQA/pylint/issues/5322) - Added a `testutil` extra require to the packaging, as `gitpython` should not be a dependency all the time but is still required to use the primer helper code in `pylint.testutil`. You can install it with `pip install pylint[testutil]`. Closes [#5486](https://togithub.com/PyCQA/pylint/issues/5486) - Reinstated checks from the python3 checker that are still useful for python 3 (`eq-without-hash`). This is now in the `pylint.extensions.eq_without_hash` optional extension. Closes [#5025](https://togithub.com/PyCQA/pylint/issues/5025) - Fixed an issue where `ungrouped-imports` could not be disabled without raising `useless-suppression`. Ref [#2366](https://togithub.com/PyCQA/pylint/issues/2366) - Added several checkers to deal with unicode security issues (see `Trojan SourcesConfiguration
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