Update dependency black to v23 - autoclosed
This MR contains the following updates:
Package | Change | Age | Adoption | Passing | Confidence |
---|---|---|---|---|---|
black (changelog) |
^22.3 -> ^23.0.0
|
Release Notes
psf/black (black)
v23.3.0
Highlights
This release fixes a longstanding confusing behavior in Black's GitHub action, where the version of the action did not determine the version of Black being run (issue #3382). In addition, there is a small bug fix around imports and a number of improvements to the preview style.
Please try out the
preview style
with black --preview
and tell us your feedback. All changes in the preview style are
expected to become part of Black's stable style in January 2024.
Stable style
- Import lines with
# fmt: skip
and# fmt: off
no longer have an extra blank line added when they are right after another import line (#3610)
Preview style
- Add trailing commas to collection literals even if there's a comment after the last entry (#3393)
-
async def
,async for
, andasync with
statements are now formatted consistently compared to their non-async version. (#3609) -
with
statements that contain two context managers will be consistently wrapped in parentheses (#3589) - Let string splitters respect East Asian Width (#3445)
- Now long string literals can be split after East Asian commas and periods (
、
U+3001 IDEOGRAPHIC COMMA,。
U+3002 IDEOGRAPHIC FULL STOP, &,
U+FF0C FULLWIDTH COMMA) besides before spaces (#3445) - For stubs, enforce one blank line after a nested class with a body other than just
...
(#3564) - Improve handling of multiline strings by changing line split behavior (#1879)
Parser
- Added support for formatting files with invalid type comments (#3594)
Integrations
- Update GitHub Action to use the version of Black equivalent to action's version if version input is not specified (#3543)
- Fix missing Python binary path in autoload script for vim (#3508)
Documentation
- Document that only the most recent release is supported for security issues; vulnerabilities should be reported through Tidelift (#3612)
v23.1.0
Highlights
This is the first release of 2023, and following our stability policy, it comes with a number of improvements to our stable style, including improvements to empty line handling, removal of redundant parentheses in several contexts, and output that highlights implicitly concatenated strings better.
There are also many changes to the preview style; try out black --preview
and give us
feedback to help us set the stable style for next year.
In addition to style changes, Black now automatically infers the supported Python
versions from your pyproject.toml
file, removing the need to set Black's target
versions separately.
Stable style
- Introduce the 2023 stable style, which incorporates most aspects of last year's
preview style (#3418). Specific changes:
- Enforce empty lines before classes and functions with sticky leading comments (#3302) (22.12.0)
- Reformat empty and whitespace-only files as either an empty file (if no newline is present) or as a single newline character (if a newline is present) (#3348) (22.12.0)
- Implicitly concatenated strings used as function args are now wrapped inside parentheses (#3307) (22.12.0)
- Correctly handle trailing commas that are inside a line's leading non-nested parens (#3370) (22.12.0)
-
--skip-string-normalization
/-S
now prevents docstring prefixes from being normalized as expected (#3168) (since 22.8.0) - When using
--skip-magic-trailing-comma
or-C
, trailing commas are stripped from subscript expressions with more than 1 element (#3209) (22.8.0) - Implicitly concatenated strings inside a list, set, or tuple are now wrapped inside parentheses (#3162) (22.8.0)
- Fix a string merging/split issue when a comment is present in the middle of implicitly concatenated strings on its own line (#3227) (22.8.0)
- Docstring quotes are no longer moved if it would violate the line length limit (#3044, #3430) (22.6.0)
- Parentheses around return annotations are now managed (#2990) (22.6.0)
- Remove unnecessary parentheses around awaited objects (#2991) (22.6.0)
- Remove unnecessary parentheses in
with
statements (#2926) (22.6.0) - Remove trailing newlines after code block open (#3035) (22.6.0)
- Code cell separators
#%%
are now standardised to# %%
(#2919) (22.3.0) - Remove unnecessary parentheses from
except
statements (#2939) (22.3.0) - Remove unnecessary parentheses from tuple unpacking in
for
loops (#2945) (22.3.0) - Avoid magic-trailing-comma in single-element subscripts (#2942) (22.3.0)
- Fix a crash when a colon line is marked between
# fmt: off
and# fmt: on
(#3439)
Preview style
- Format hex codes in unicode escape sequences in string literals (#2916)
- Add parentheses around
if
-else
expressions (#2278) - Improve performance on large expressions that contain many strings (#3467)
- Fix a crash in preview style with assert + parenthesized string (#3415)
- Fix crashes in preview style with walrus operators used in function return annotations and except clauses (#3423)
- Fix a crash in preview advanced string processing where mixed implicitly concatenated regular and f-strings start with an empty span (#3463)
- Fix a crash in preview advanced string processing where a standalone comment is placed before a dict's value (#3469)
- Fix an issue where extra empty lines are added when a decorator has
# fmt: skip
applied or there is a standalone comment between decorators (#3470) - Do not put the closing quotes in a docstring on a separate line, even if the line is too long (#3430)
- Long values in dict literals are now wrapped in parentheses; correspondingly unnecessary parentheses around short values in dict literals are now removed; long string lambda values are now wrapped in parentheses (#3440)
- Fix two crashes in preview style involving edge cases with docstrings (#3451)
- Exclude string type annotations from improved string processing; fix crash when the return type annotation is stringified and spans across multiple lines (#3462)
- Wrap multiple context managers in parentheses when targeting Python 3.9+ (#3489)
- Fix several crashes in preview style with walrus operators used in
with
statements or tuples (#3473) - Fix an invalid quote escaping bug in f-string expressions where it produced invalid code. Implicitly concatenated f-strings with different quotes can now be merged or quote-normalized by changing the quotes used in expressions. (#3509)
- Fix crash on
await (yield)
when Black is compiled with mypyc (#3533)
Configuration
- Black now tries to infer its
--target-version
from the project metadata specified inpyproject.toml
(#3219)
Packaging
- Upgrade mypyc from
0.971
to0.991
so mypycified Black can be built on armv7 (#3380)- This also fixes some crashes while using compiled Black with a debug build of CPython
- Drop specific support for the
tomli
requirement on 3.11 alpha releases, working around a bug that would cause the requirement not to be installed on any non-final Python releases (#3448) - Black now depends on
packaging
version22.0
or later. This is required for new functionality that needs to parse part of the project metadata (#3219)
Output
- Calling
black --help
multiple times will return the same help contents each time (#3516) - Verbose logging now shows the values of
pyproject.toml
configuration variables (#3392) - Fix false symlink detection messages in verbose output due to using an incorrect relative path to the project root (#3385)
Integrations
- Move 3.11 CI to normal flow now that all dependencies support 3.11 (#3446)
- Docker: Add new
latest_prerelease
tag automation to follow latest black alpha release on docker images (#3465)
Documentation
- Expand
vim-plug
installation instructions to offer more explicit options (#3468)
v22.12.0
Preview style
- Enforce empty lines before classes and functions with sticky leading comments (#3302)
- Reformat empty and whitespace-only files as either an empty file (if no newline is present) or as a single newline character (if a newline is present) (#3348)
- Implicitly concatenated strings used as function args are now wrapped inside parentheses (#3307)
- For assignment statements, prefer splitting the right hand side if the left hand side fits on a single line (#3368)
- Correctly handle trailing commas that are inside a line's leading non-nested parens (#3370)
Configuration
- Fix incorrectly applied
.gitignore
rules by considering the.gitignore
location and the relative path to the target file (#3338) - Fix incorrectly ignoring
.gitignore
presence when more than one source directory is specified (#3336)
Parser
- Parsing support has been added for walruses inside generator expression that are
passed as function args (for example,
any(match := my_re.match(text) for text in texts)
) (#3327).
Integrations
- Vim plugin: Optionally allow using the system installation of Black via
let g:black_use_virtualenv = 0
(#3309)
v22.10.0
Highlights
- Runtime support for Python 3.6 has been removed. Formatting 3.6 code will still be supported until further notice.
Stable style
- Fix a crash when
# fmt: on
is used on a different block level than# fmt: off
(#3281)
Preview style
- Fix a crash when formatting some dicts with parenthesis-wrapped long string keys (#3262)
Configuration
-
.ipynb_checkpoints
directories are now excluded by default (#3293) - Add
--skip-source-first-line
/-x
option to ignore the first line of source code while formatting (#3299)
Packaging
- Executables made with PyInstaller will no longer crash when formatting several files at once on macOS. Native x86-64 executables for macOS are available once again. (#3275)
- Hatchling is now used as the build backend. This will not have any effect for users who install Black with its wheels from PyPI. (#3233)
- Faster compiled wheels are now available for CPython 3.11 (#3276)
Blackd
- Windows style (CRLF) newlines will be preserved (#3257).
Integrations
- Vim plugin: add flag (
g:black_preview
) to enable/disable the preview style (#3246) - Update GitHub Action to support formatting of Jupyter Notebook files via a
jupyter
option (#3282) - Update GitHub Action to support use of version specifiers (e.g.
<23
) for Black version (#3265)
v22.8.0
Highlights
- Python 3.11 is now supported, except for blackd as aiohttp does not support 3.11 as of publishing (#3234)
- This is the last release that supports running Black on Python 3.6 (formatting 3.6 code will continue to be supported until further notice)
- Reword the stability policy to say that we may, in rare cases, make changes that affect code that was not previously formatted by Black (#3155)
Stable style
- Fix an infinite loop when using
# fmt: on/off
in the middle of an expression or code block (#3158) - Fix incorrect handling of
# fmt: skip
on colon (:
) lines (#3148) - Comments are no longer deleted when a line had spaces removed around power operators (#2874)
Preview style
- Single-character closing docstring quotes are no longer moved to their own line as this is invalid. This was a bug introduced in version 22.6.0. (#3166)
-
--skip-string-normalization
/-S
now prevents docstring prefixes from being normalized as expected (#3168) - When using
--skip-magic-trailing-comma
or-C
, trailing commas are stripped from subscript expressions with more than 1 element (#3209) - Implicitly concatenated strings inside a list, set, or tuple are now wrapped inside parentheses (#3162)
- Fix a string merging/split issue when a comment is present in the middle of implicitly concatenated strings on its own line (#3227)
Blackd
-
blackd
now supports enabling the preview style via theX-Preview
header (#3217)
Configuration
- Black now uses the presence of debug f-strings to detect target version (#3215)
- Fix misdetection of project root and verbose logging of sources in cases involving
--stdin-filename
(#3216) - Immediate
.gitignore
files in source directories given on the command line are now also respected, previously only.gitignore
files in the project root and automatically discovered directories were respected (#3237)
Documentation
- Recommend using BlackConnect in IntelliJ IDEs (#3150)
Integrations
- Vim plugin: prefix messages with
Black:
so it's clear they come from Black (#3194) - Docker: changed to a /opt/venv installation + added to PATH to be available to non-root users (#3202)
Output
- Change from deprecated
asyncio.get_event_loop()
to create our event loop which removes DeprecationWarning (#3164) - Remove logging from internal
blib2to3
library since it regularly emits error logs about failed caching that can and should be ignored (#3193)
Parser
- Type comments are now included in the AST equivalence check consistently so accidental deletion raises an error. Though type comments can't be tracked when running on PyPy 3.7 due to standard library limitations. (#2874)
Performance
- Reduce Black's startup time when formatting a single file by 15-30% (#3211)
v22.6.0
Style
- Fix unstable formatting involving
#fmt: skip
and# fmt:skip
comments (notice the lack of spaces) (#2970)
Preview style
- Docstring quotes are no longer moved if it would violate the line length limit (#3044)
- Parentheses around return annotations are now managed (#2990)
- Remove unnecessary parentheses around awaited objects (#2991)
- Remove unnecessary parentheses in
with
statements (#2926) - Remove trailing newlines after code block open (#3035)
Integrations
- Add
scripts/migrate-black.py
script to ease introduction of Black to a Git project (#3038)
Output
- Output Python version and implementation as part of
--version
flag (#2997)
Packaging
- Use
tomli
instead oftomllib
on Python 3.11 builds wheretomllib
is not available (#2987)
Parser
-
PEP 654 syntax (for example,
except *ExceptionGroup:
) is now supported (#3016) -
PEP 646 syntax (for example,
Array[Batch, *Shape]
ordef fn(*args: *T) -> None
) is now supported (#3071)
Vim Plugin
- Fix
strtobool
function. It didn't parse true/on/false/off. (#3025)
Configuration
-
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