Speed up blib2to3 tokenization using generic python function
#4541
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Feb 10, 2025
This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [black](https://github.com/psf/black) ([changelog](https://github.com/psf/black/blob/main/CHANGES.md)) | dependency-groups | major | `<25.0.0,>=24.10.0` -> `<25.2.0,>=25.1.0` | --- ### Release Notes <details> <summary>psf/black (black)</summary> ### [`v25.1.0`](https://github.com/psf/black/blob/HEAD/CHANGES.md#2510) [Compare Source](psf/black@24.10.0...25.1.0) ##### Highlights This release introduces the new 2025 stable style ([#​4558](psf/black#4558)), stabilizing the following changes: - Normalize casing of Unicode escape characters in strings to lowercase ([#​2916](psf/black#2916)) - Fix inconsistencies in whether certain strings are detected as docstrings ([#​4095](psf/black#4095)) - Consistently add trailing commas to typed function parameters ([#​4164](psf/black#4164)) - Remove redundant parentheses in if guards for case blocks ([#​4214](psf/black#4214)) - Add parentheses to if clauses in case blocks when the line is too long ([#​4269](psf/black#4269)) - Whitespace before `# fmt: skip` comments is no longer normalized ([#​4146](psf/black#4146)) - Fix line length computation for certain expressions that involve the power operator ([#​4154](psf/black#4154)) - Check if there is a newline before the terminating quotes of a docstring ([#​4185](psf/black#4185)) - Fix type annotation spacing between `*` and more complex type variable tuple ([#​4440](psf/black#4440)) The following changes were not in any previous release: - Remove parentheses around sole list items ([#​4312](psf/black#4312)) - Generic function definitions are now formatted more elegantly: parameters are split over multiple lines first instead of type parameter definitions ([#​4553](psf/black#4553)) ##### Stable style - Fix formatting cells in IPython notebooks with magic methods and starting or trailing empty lines ([#​4484](psf/black#4484)) - Fix crash when formatting `with` statements containing tuple generators/unpacking ([#​4538](psf/black#4538)) ##### Preview style - Fix/remove string merging changing f-string quotes on f-strings with internal quotes ([#​4498](psf/black#4498)) - Collapse multiple empty lines after an import into one ([#​4489](psf/black#4489)) - Prevent `string_processing` and `wrap_long_dict_values_in_parens` from removing parentheses around long dictionary values ([#​4377](psf/black#4377)) - Move `wrap_long_dict_values_in_parens` from the unstable to preview style ([#​4561](psf/black#4561)) ##### Packaging - Store license identifier inside the `License-Expression` metadata field, see [PEP 639](https://peps.python.org/pep-0639/). ([#​4479](psf/black#4479)) ##### Performance - Speed up the `is_fstring_start` function in Black's tokenizer ([#​4541](psf/black#4541)) ##### Integrations - If using stdin with `--stdin-filename` set to a force excluded path, stdin won't be formatted. ([#​4539](psf/black#4539)) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOS4xNjQuMSIsInVwZGF0ZWRJblZlciI6IjM5LjE2NC4xIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJsaW50aW5nIl19--> Reviewed-on: https://git.tainton.uk/repos/PwnedPW/pulls/283 Reviewed-by: Luke Tainton <luke@tainton.uk> Co-authored-by: Renovate [BOT] <renovate-bot@git.tainton.uk> Co-committed-by: Renovate [BOT] <renovate-bot@git.tainton.uk>
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Description
Fixes #4540.
Checklist - did you ...
CHANGES.mdif necessary?