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PERF: get_requirement() raise cache from 2048 to 8192 elements #12873

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PERF: get_requirement() raise cache from 2048 to 8192 elements #12873

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PERF: get_requirement() raise cache from 2048 to 8192 elements
rmmancom Jul 23, 2024
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rmmancom Jul 23, 2024
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3 changes: 3 additions & 0 deletions news/12873.feature.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
Improve pip install performance.
Increase lru cache for parsing requirement strings from 2048 to 8192 items.
The small size was suboptimal when installing hundreds of packages.
2 changes: 1 addition & 1 deletion src/pip/_internal/utils/packaging.py
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Expand Up @@ -34,7 +34,7 @@ def check_requires_python(
return python_version in requires_python_specifier


@functools.lru_cache(maxsize=2048)
@functools.lru_cache(maxsize=8192)
def get_requirement(req_string: str) -> Requirement:
"""Construct a packaging.Requirement object with caching"""
# Parsing requirement strings is expensive, and is also expected to happen
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