v25.9.0

Compare Source

Highlights

• Remove support for pre-python 3.7await/async as soft keywords/variable names
  (#​4676)

Stable style

• Fix crash while formatting a longdel statement containing tuples (#​4628)
• Fix crash while formatting expressions using the walrus operator in complexwith
  statements (#​4630)
• Handle# fmt: skip followed by a comment at the end of file (#​4635)
• Fix crash when a tuple appears in theas clause of awith statement (#​4634)
• Fix crash when tuple is used as a context manager inside awith statement (#​4646)
• Fix crash when formatting a\ followed by a\r followed by a comment (#​4663)
• Fix crash on a\\r\n (#​4673)
• Fix crash onawait ... (where... is a literalEllipsis) (#​4676)
• Fix crash on parenthesized expression inside a type parameter bound (#​4684)
• Fix crash when using line ranges excluding indented single line decorated items
  (#​4670)

Preview style

• Fix a bug where one-liner functions/conditionals marked with# fmt: skip would still
  be formatted (#​4552)
• Improvemultiline_string_handling with ternaries and dictionaries (#​4657)
• Fix a bug wherestring_processing would not split f-strings directly after
  expressions (#​4680)
• Wrap thein clause of comprehensions across lines if necessary (#​4699)
• Remove parentheses around multiple exception types inexcept andexcept* without
  as. (#​4720)
• Add\r style newlines to the potential newlines to normalize file newlines both from
  and to (#​4710)

Parser

• Rewrite tokenizer to improve performance and compliance (#​4536)
• Fix bug where certain unusual expressions (e.g., lambdas) were not accepted in type
  parameter bounds and defaults. (#​4602)

Performance

• Avoid using an extra process when running with only one worker (#​4734)

Integrations

• Fix the version check in the vim file to reject Python 3.8 (#​4567)
• Enhance GitHub Actionpsf/black to read Black version from an additional section in
  pyproject.toml:[project.dependency-groups] (#​4606)
• Build gallery docker image with python3-slim and reduce image size (#​4686)

Documentation

• Add FAQ entry for windows emoji not displaying (#​4714)