GH-49295: [Python] Remove "mimalloc" from mandatory_backends#49645
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kou wants to merge 1 commit intoapache:mainfrom
Open
GH-49295: [Python] Remove "mimalloc" from mandatory_backends#49645kou wants to merge 1 commit intoapache:mainfrom
mandatory_backends#49645kou wants to merge 1 commit intoapache:mainfrom
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Pull request overview
This PR updates PyArrow’s memory-pool tests to avoid assuming mimalloc is always available, aligning the test expectations with builds where mimalloc is disabled (e.g., some downstream distro packages).
Changes:
- Remove
"mimalloc"frommandatory_backendsso tests only require the"system"allocator backend.
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raulcd
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Apr 2, 2026
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As per the conversation on the issue, LGTM
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Rationale for this change
mimalloc is enabled by default but users can disable it. For example, Debian package disables it.
If it's disabled, PyArrow tests are failed.
What changes are included in this PR?
Remove
"mimalloc"frommandatory_backendsin our test.Are these changes tested?
Yes.
Are there any user-facing changes?
No.
-DARROW_MIMALLOC=OFF#49295