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Use list comprehensions to create transformed lists #7597

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merged 4 commits into from Dec 5, 2023

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@hugovk hugovk commented Dec 3, 2023

Changes proposed in this pull request:

  • Replace some for loops with list comprehensions
  • Identified with ruff . --select PERF401: "PERF401 Use a list comprehension to create a transformed list"
  • https://docs.astral.sh/ruff/rules/manual-list-comprehension/
  • It finds some that can't be easily replaced, so I didn't add this rule to pyproject.toml

src/PIL/ImageOps.py Outdated Show resolved Hide resolved
src/PIL/PcfFontFile.py Outdated Show resolved Hide resolved
src/PIL/SpiderImagePlugin.py Outdated Show resolved Hide resolved
v.append(functools.reduce(operator.add, self.h[i : i + 256]))
return v
return [
functools.reduce(operator.add, self.h[i : i + 256])
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src/PIL/ImageCms.py Show resolved Hide resolved
src/PIL/ImageOps.py Outdated Show resolved Hide resolved
hugovk and others added 2 commits December 4, 2023 16:34
Co-authored-by: Andrew Murray <3112309+radarhere@users.noreply.github.com>
Co-authored-by: Alexander Karpinsky <homm86@gmail.com>
src/PIL/ImagePalette.py Outdated Show resolved Hide resolved
Co-authored-by: Andrew Murray <3112309+radarhere@users.noreply.github.com>
@radarhere radarhere merged commit 0a66b98 into python-pillow:main Dec 5, 2023
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@hugovk hugovk deleted the comprehensions branch December 5, 2023 10:17
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5 participants