Repository navigation
[3.15] gh-159184: Do not intern NaN constants on the free-threaded build (GH-161276) - #161287
Merged
Merged
Conversation
…ld (pythonGH-161276) compare_constants() matches floats by bits, but hash_const() uses the object hash, which for a NaN depends on its address, so each NaN loaded by marshal.loads() added an immortal entry to the constants table. Hashing the bits would merge NaNs and shrink frozensets, so leave them out of the table. (cherry picked from commit 1db5966) Co-authored-by: Cody Maloney <cmaloney@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
This was referenced Nov 4, 2026
Member
|
!buildbot Refleaks NoGIL|NoGIL Refleaks |
|
🤖 New build scheduled with the buildbot fleet by @gpshead for commit 900f231 🤖 Results will be shown at: https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F161287%2Fmerge The command will test the builders whose names match following regular expression: The builders matched are:
|
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
compare_constants() matches floats by bits, but hash_const() uses the object
hash, which for a NaN depends on its address, so each NaN loaded by
marshal.loads() added an immortal entry to the constants table. Hashing the
bits would merge NaNs and shrink frozensets, so leave them out of the table.
(cherry picked from commit 1db5966)
Co-authored-by: Cody Maloney cmaloney@users.noreply.github.com
Co-authored-by: Claude Opus 5.5 noreply@anthropic.com
marshal.dumps()raisesTypeErrorfor a set containing several complex NaNs #159184