build: Fix manylinux Python version (#204)

[mc-nv]

What does the PR do?

• Carries the manylinux Python version fix forward from r26.08 onto main.
• Straight cherry-pick of 1fbcecbf; no edits beyond the original.

Checklist

• PR title reflects the change and is of format <commit_type>: <Title>
• Changes are described in the pull request.
• Related issues are referenced.
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• Added test plan and verified test passes.
• Verified that the PR passes existing CI.
• Verified copyright is correct on all changed files.
• Added succinct git squash message before merging ref.
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Commit Type:

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• build
• ci
• docs
• feat
• fix
• perf
• refactor
• revert
• style
• test

Related PRs:

• build(deps): Bump Go example gRPC client dependencies (#919) client#920
• build(before-code-freeze): Align CMake configuration with the other repos (#162) common#164
• fix: reserve completion-queue slot at enqueue to restore preserve_ordering (#520) core#523
• build(before-code-freeze): Prepare the ONNX Runtime backend for the manylinux base (#352) onnxruntime_backend#358
• build(before-code-freeze): Export the stub's dynamic symbols when libpython is static (#451) python_backend#453
• chore(versions): align tutorials examples with 26.08 release train (#167) tutorials#168
• chore(post-release): advance main to 26.08 upstreams server#8949

Where should the reviewer start?

CMakeLists.txt — the two-line version fix.

Test plan:

• Full CI run on the internal pipeline at TRITON_CONTAINER_VERSION=26.09dev_user, with TRITON_NIGHTLY=1 and TRITON_SBSA=1.

• Local verification: per-repo pre-commit run --files <changed> passes with no auto-fixes.

• CI Pipeline ID:

Caveats:

• Do not merge before the model-repository mount point is rotated: TRITON_SERVER_MODEL_REPO_VERSION derives from TRITON_CONTAINER_VERSION, so 26.09dev must exist on the share first.

Background

Post-release step of the 26.08 train: the default branches move onto the same upstream containers as the just-released r26.08, and pick up the fixes that landed only on the release branch while it stabilised.

Related Issues: (use one of the action keywords Closes / Fixes / Resolves / Relates to)

• Relates to: TRI-1691

[greptile-apps]

Greptile Summary

Updates the RHEL/manylinux build configuration to use the CPython 3.12.13 installation layout instead of 3.12.1.

• Updates the Python site-packages source path used to copy PyTorch libraries and headers.
• Updates the x86_64 library source path to the matching CPython installation.

Confidence Score: 5/5

The PR appears safe to merge, with the two related manylinux paths consistently updated to CPython 3.12.13.

The change is limited to synchronizing the RHEL build’s Python package and x86_64 library source paths, and no reachable build regression or repository-rule violation was identified.

Important Files Changed

Filename	Overview
CMakeLists.txt	Aligns both hard-coded manylinux CPython paths with version 3.12.13; no actionable defect was established.

_{Reviews (1): Last reviewed commit: "build: Fix manylinux Python version (#20..." | Re-trigger Greptile}