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Speed up socket.errorTab and lazy import selectors #121423

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Wulian233 opened this issue Jul 6, 2024 · 1 comment
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Speed up socket.errorTab and lazy import selectors #121423

Wulian233 opened this issue Jul 6, 2024 · 1 comment
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performance Performance or resource usage type-feature A feature request or enhancement

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Wulian233 commented Jul 6, 2024 •
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Feature or enhancement

socket

>python -m timeit -n 1000 -s "import socket" "print(socket.__all__)"
1000 loops, best of 5: 407 usec per loop

>python -m timeit -n 1000 -s "import socket" "print(socket.__all__)"
1000 loops, best of 5: 352 usec per loop

1.15x faster

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@Wulian233 Wulian233 added the type-feature A feature request or enhancement label Jul 6, 2024
@bedevere-app bedevere-app bot mentioned this issue Jul 6, 2024
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@Wulian233 Wulian233 changed the title Speed up socket.errotTab and lazy import selectors Speed up socket.errorTab and lazy import selectors Jul 6, 2024
@sobolevn sobolevn added the performance Performance or resource usage label Jul 6, 2024
vstinner pushed a commit that referenced this issue Sep 4, 2024
@Wulian233 @eendebakpt
@picnixz @gpshead @hugovk @hauntsaninja
gh-121423: Improve import time of socket (#121424)
7bd964d 
Improve import time of `socket` by writing `socket.errorTab`
as a constant and lazy import modules.

Co-authored-by: Pieter Eendebak <[email protected]>
Co-authored-by: Bénédikt Tran <[email protected]>
Co-authored-by: Gregory P. Smith <[email protected]>
Co-authored-by: Hugo van Kemenade <[email protected]>
Co-authored-by: Shantanu <[email protected]>
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vstinner commented Sep 4, 2024

Implemented by 7bd964d.

@vstinner vstinner closed this as completed Sep 4, 2024
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