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replace set constructor with set literals #4573



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@noviluni noviluni commented May 13, 2020

I replaced the uses of the set constructor with set literals as the performance is slightly better.

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elacuesta commented May 13, 2020

Interesting, I had no idea. Reading this post, it seems like it might be possible to convert other occurrences as well, using unpacking: {*<iterable>}.
Are there any occurrences outside of the tests?

wRAR approved these changes May 14, 2020
@noviluni noviluni closed this May 14, 2020
@noviluni noviluni reopened this May 14, 2020
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codecov bot commented May 14, 2020

Codecov Report

Merging #4573 into master will decrease coverage by 0.08%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #4573      +/-   ##
- Coverage   84.55%   84.47%   -0.09%     
  Files         164      164              
  Lines        9923     9923              
  Branches     1475     1475              
- Hits         8390     8382       -8     
- Misses       1266     1273       +7     
- Partials      267      268       +1     
Impacted Files Coverage Δ
scrapy/utils/ 20.00% <0.00%> (-80.00%) ⬇️
scrapy/utils/ 62.50% <0.00%> (-12.50%) ⬇️

@Gallaecio Gallaecio merged commit fffb0a5 into scrapy:master May 15, 2020
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4 participants