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gh-104273: Remove redundant len() calls in argparse function #104274

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merged 1 commit into from
May 7, 2023

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@buraksaler buraksaler commented May 7, 2023

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Calculating an expression once instead of thrice or more is a common optimization.

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Burak, I am merging this because to me it makes the code a bit clearer. Redundant expressions can raise the question of whether, in this case, indent was changed so that its len could change. I otherwise would agree with 2 other core developers that this does not do enough to be worth merging. So next time, please about a meatier improvement. Or find an actual bug issue.

@terryjreedy terryjreedy changed the title gh-104273: Reduce number of calls to len() gh-104273: Remove redundant len() calls in argparse function May 7, 2023
@terryjreedy terryjreedy merged commit 01cc9c1 into python:main May 7, 2023
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@terryjreedy thank you for the feedback. I'll try my best

jbower-fb pushed a commit to jbower-fb/cpython-jbowerfb that referenced this pull request May 8, 2023
carljm added a commit to carljm/cpython that referenced this pull request May 9, 2023
* main: (47 commits)
  pythongh-97696 Remove unnecessary check for eager_start kwarg (python#104188)
  pythonGH-104308: socket.getnameinfo should release the GIL (python#104307)
  pythongh-104310: Add importlib.util.allowing_all_extensions() (pythongh-104311)
  pythongh-99113: A Per-Interpreter GIL! (pythongh-104210)
  pythonGH-104284: Fix documentation gettext build (python#104296)
  pythongh-89550: Buffer GzipFile.write to reduce execution time by ~15% (python#101251)
  pythongh-104223: Fix issues with inheriting from buffer classes (python#104227)
  pythongh-99108: fix typo in Modules/Setup (python#104293)
  pythonGH-104145: Use fully-qualified cross reference types for the bisect module (python#104172)
  pythongh-103193: Improve `getattr_static` test coverage (python#104286)
  Trim trailing whitespace and test on CI (python#104275)
  pythongh-102500: Remove mention of bytes shorthand (python#104281)
  pythongh-97696: Improve and fix documentation for asyncio eager tasks (python#104256)
  pythongh-99108: Replace SHA3 implementation HACL* version (python#103597)
  pythongh-104273: Remove redundant len() calls in argparse function (python#104274)
  pythongh-64660: Don't hardcode Argument Clinic return converter result variable name (python#104200)
  pythongh-104265 Disallow instantiation of `_csv.Reader` and `_csv.Writer` (python#104266)
  pythonGH-102613: Improve performance of `pathlib.Path.rglob()` (pythonGH-104244)
  pythongh-103650: Fix perf maps address format (python#103651)
  pythonGH-89812: Churn `pathlib.Path` methods (pythonGH-104243)
  ...
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3 participants