Pin langgraph-prebuilt<1.0.10 to fix preview CI (closes #15)#19
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) langgraph-prebuilt 1.0.10 added `from langgraph.runtime import ExecutionInfo, ServerInfo` to prebuilt/tool_node.py — symbols that arrived in langgraph 1.0.10+. With our pinned langgraph==1.0.2 and an unpinned langgraph-prebuilt, pip resolves to the latest (1.1.0) which crashes the chatbot container at import time: ImportError: cannot import name 'ExecutionInfo' from 'langgraph.runtime' That import failure is what the `preview` PR-CI job has been failing on since the build-base-images job started succeeding (commit 405b10a). Every open PR hits it. Pin langgraph-prebuilt<1.0.10 in all three requirements files (requirements/requirements-base.txt + the two base-image requirements.txt copies). Pip now resolves to langgraph-prebuilt 1.0.9 which only imports `Runtime` from langgraph.runtime — a symbol that exists in langgraph 1.0.2. Verified the resolver picks 1.0.9 via `pip install --dry-run langgraph==1.0.2 langgraph-prebuilt<1.0.10`. When langgraph itself is bumped past 1.0.10, this pin can be dropped. Closes #15. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Pull request overview
Pins langgraph-prebuilt<1.0.10 alongside the existing langgraph==1.0.2 pin to prevent CI/preview container startup from failing due to an upstream langgraph-prebuilt import that requires newer langgraph.runtime symbols (issue #15).
Changes:
- Add an explicit
langgraph-prebuilt<1.0.10constraint to keeplanggraph-prebuiltcompatible withlanggraph==1.0.2. - Apply the same pin consistently across the shared base requirements file and both base-image template requirements files.
- Document the rationale in
requirements/requirements-base.txt, with lightweight pointers from the template copies.
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
requirements/requirements-base.txt |
Adds rationale + pin to prevent langgraph-prebuilt/langgraph version skew from breaking imports. |
src/cli/templates/dockerfiles/base-python-image/requirements.txt |
Mirrors the langgraph-prebuilt<1.0.10 pin used for base image builds. |
src/cli/templates/dockerfiles/base-pytorch-image/requirements.txt |
Mirrors the langgraph-prebuilt<1.0.10 pin used for base image builds. |
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First fix attempt pinned `langgraph-prebuilt<1.0.10`, expecting 1.0.9 to be the last working version. PR #19's first preview-job run revealed 1.0.9 already has the broken import: 1.0.8: from langgraph.runtime import Runtime ✓ 1.0.9: from langgraph.runtime import ExecutionInfo, ServerInfo ✗ 1.0.10: same break Tighten to <1.0.9. Resolver now picks 1.0.8 (verified via `pip install --dry-run langgraph==1.0.2 langgraph-prebuilt<1.0.9`). 1.0.8 only imports Runtime, which exists in langgraph 1.0.2. Comment in requirements/requirements-base.txt updated with the correct boundary so the next person doesn't repeat the off-by-one. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
First fix attempt pinned `langgraph-prebuilt<1.0.10`, expecting 1.0.9 to be the last working version. PR #19's first preview-job run revealed 1.0.9 already has the broken import: 1.0.8: from langgraph.runtime import Runtime ✓ 1.0.9: from langgraph.runtime import ExecutionInfo, ServerInfo ✗ 1.0.10: same break Tighten to <1.0.9. Resolver now picks 1.0.8 (verified via `pip install --dry-run langgraph==1.0.2 langgraph-prebuilt<1.0.9`). 1.0.8 only imports Runtime, which exists in langgraph 1.0.2. Comment in requirements/requirements-base.txt updated with the correct boundary so the next person doesn't repeat the off-by-one. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Summary
Pin
langgraph-prebuilt<1.0.10in all three requirements files. Resolves theImportError: cannot import name 'ExecutionInfo' from 'langgraph.runtime'that has been blocking thepreviewPR-CI job on every open PR sincebuild-base-imagesstarted succeeding (#13).Root cause
langgraph==1.0.2is pinned inrequirements/requirements-base.txt(and the two base-image copies).langgraph-prebuiltis a transitive dep, unpinned, so pip resolves to the latest (1.1.0).langgraph-prebuilt 1.0.10+addsfrom langgraph.runtime import ExecutionInfo, ServerInfotoprebuilt/tool_node.py— symbols that arrived inlanggraph 1.0.10+(don't exist in 1.0.2)./api/healthever responds.Fix
Pin
langgraph-prebuilt<1.0.10so pip resolves to 1.0.9, which only importsRuntimefromlanggraph.runtime(a symbol that exists inlanggraph 1.0.2).Verified locally:
When
langgraphis bumped past 1.0.10 in a future PR, this pin can be dropped (langgraph-prebuiltecosystem versions ship in lockstep withlanggraph).Test plan
pip install --dry-runconfirms resolver picks 1.0.9tool_node.pyacross versions 1.0.0 → 1.0.10: confirmed 1.0.9 imports onlyRuntimewhile 1.0.10 adds the breaking importspreviewjob goes green on this PRCloses #15.
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