Repository navigation
gh-140009: Improve performance of list_extend_dictitems by using PyTuple_FromArray - #140010
Merged
kumaraditya303 merged 3 commits intoOct 13, 2025
Merged
kumaraditya303 merged 3 commits into
kumaraditya303 merged 3 commits into
Conversation
Copy link
Copy Markdown
Contributor
Sorry, something went wrong.
kumaraditya303
approved these changes
Oct 13, 2025
Copy link
Copy Markdown
Member
|
If PyTuple_Pack() is "inefficient", I would prefer to have a specialized PyTuple_Pack2() function (or PyTuple_MakePair()) rather than having to use the generic PyTuple_FromArray(). |
Sorry, something went wrong.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Benchmark:
import pyperf runner = pyperf.Runner() setup=""" d = {ii: ii+1 for ii in range(200)} dct_items = d.items() """ runner.timeit(name="extend list with dict keys", stmt="l = []; l += d", setup=setup) runner.timeit(name="extend list with dict items", stmt="l = []; l += dct_items", setup=setup)Results:
The benchmark is 19% faster (extend list with dict keys is a control benchmark).