Use map/filter with built-in functions for performance#1237

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bact merged 9 commits intodevfrom

copilot/replace-map-reduce-with-comprehension

Jan 30, 2026

Commits on Jan 30, 2026

Initial plan
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Replace map/lambda with list comprehensions in benchmarks and util modules

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Replace filter(None, ...) with list/generator comprehensions

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Revert to map/filter with built-in functions for better performance

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Convert list comprehensions to map() with built-in functions for performance

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Remove redundant empty string check before filter(None)

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Replace list comprehensions with filter() for better efficiency

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Fix: Revert filter(None) in ulmfit/preprocess.py to preserve empty strings

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Re-apply filter(None) in ulmfit/preprocess.py to remove empty strings

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