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22.1.0

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@ichard26 ichard26 released this 29 Jan 20:36
· 583 commits to main since this release
22.1.0
d038a24

At long last, Black is no longer a beta product! This is the first non-beta release and the first release covered by our new stability policy.

Highlights

  • Remove Python 2 support (#2740)
  • Introduce the --preview flag (#2752)

Style

  • Deprecate --experimental-string-processing and move the functionality under --preview (#2789)
  • For stubs, one blank line between class attributes and methods is now kept if there's at least one pre-existing blank line (#2736)
  • Black now normalizes string prefix order (#2297)
  • Remove spaces around power operators if both operands are simple (#2726)
  • Work around bug that causes unstable formatting in some cases in the presence of the magic trailing comma (#2807)
  • Use parentheses for attribute access on decimal float and int literals (#2799)
  • Don't add whitespace for attribute access on hexadecimal, binary, octal, and complex literals (#2799)
  • Treat blank lines in stubs the same inside top-level if statements (#2820)
  • Fix unstable formatting with semicolons and arithmetic expressions (#2817)
  • Fix unstable formatting around magic trailing comma (#2572)

Parser

  • Fix mapping cases that contain as-expressions, like case {"key": 1 | 2 as password} (#2686)
  • Fix cases that contain multiple top-level as-expressions, like case 1 as a, 2 as b (#2716)
  • Fix call patterns that contain as-expressions with keyword arguments, like case Foo(bar=baz as quux) (#2749)
  • Tuple unpacking on return and yield constructs now implies 3.8+ (#2700)
  • Unparenthesized tuples on annotated assignments (e.g values: Tuple[int, ...] = 1, 2, 3) now implies 3.8+ (#2708)
  • Fix handling of standalone match() or case() when there is a trailing newline or a comment inside of the parentheses. (#2760)
  • from __future__ import annotations statement now implies Python 3.7+ (#2690)

Performance

  • Speed-up the new backtracking parser about 4X in general (enabled when --target-version is set to 3.10 and higher). (#2728)
  • Black is now compiled with mypyc for an overall 2x speed-up. 64-bit Windows, MacOS, and Linux (not including musl) are supported. (#1009, #2431)

Configuration

  • Do not accept bare carriage return line endings in pyproject.toml (#2408)
  • Add configuration option (python-cell-magics) to format cells with custom magics in Jupyter Notebooks (#2744)
  • Allow setting custom cache directory on all platforms with environment variable BLACK_CACHE_DIR (#2739).
  • Enable Python 3.10+ by default, without any extra need to specify --target-version=py310. (#2758)
  • Make passing SRC or --code mandatory and mutually exclusive (#2804)

Output

  • Improve error message for invalid regular expression (#2678)
  • Improve error message when parsing fails during AST safety check by embedding the underlying SyntaxError (#2693)
  • No longer color diff headers white as it's unreadable in light themed terminals (#2691)
  • Text coloring added in the final statistics (#2712)
  • Verbose mode also now describes how a project root was discovered and which paths will be formatted. (#2526)

Packaging

  • All upper version bounds on dependencies have been removed (#2718)
  • typing-extensions is no longer a required dependency in Python 3.10+ (#2772)
  • Set click lower bound to 8.0.0 as Black crashes on 7.1.2 (#2791)

Integrations

  • Update GitHub action to support containerized runs (#2748)

Documentation

  • Change protocol in pip installation instructions to https:// (#2761)
  • Change HTML theme to Furo primarily for its responsive design and mobile support (#2793)
  • Deprecate the black-primer tool (#2809)
  • Document Python support policy (#2819)

Full Changelog: 21.12b0...22.1.0


Thank you!

And also congrats to first contributors!