[allenflux]

Exhausting a job event iterator at a terminal frame, or explicitly closing it, does not currently close the low-level SSE generator it owns. That generator holds the HTTP response context across yields, so resource release can depend on generator finalization.

Close each owned stream with closing / aclosing inside the existing per-connection error handling. Preserve polling fallback and reconnection behavior, and accurately annotate the low-level generator return types. This covers terminal exhaustion and explicit iterator closure; it does not promise automatic cleanup for an arbitrary bare break while the caller retains the iterator.

Validation on Python 3.12.11 / macOS arm64:

• Four resource regressions fail on unchanged main, while seven controls pass with identical final tests. All eleven pass with the fix.
• Tests retain the real low-level generator and observe the real HTTP response context using the existing local API stub; no httpx mocks.
• Full suite: 1270 passed, 9 environment-gated gateway tests skipped. Ruff, formatting and mypy src pass. The public-repo hygiene check passes with the new test tracked.
• Independent automated verification reproduces the four failures, passes the fixed eleven cases and five additional read-idle/reconnect controls.

No live gateway or GPU was used. The cancellation case is a general control, not proof of cancellation during an active SSE read.

Summary by CodeRabbit

• Bug Fixes
  • Synchronous and asynchronous event streams now close their underlying HTTP connections when iteration finishes, reaches a terminal status, or is closed early. This also applies when asynchronous iteration is cancelled while waiting for another event, helping prevent connections from remaining open after a stream ends.

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Run configuration

• Source mode: Auto
• Repository: Comfy-Org/comfy-python-sdk
• Branch: main
• File: .coderabbit.yaml
• Commit: 3fa8ac1
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Reviewing files that changed from the base of the PR and between e6e724c and b75126c.

Files selected for processing: 2

• src/comfy_sdk/jobs.py
• tests/test_event_iterator_overrides.py

Walkthrough

Synchronous and asynchronous job event iteration now closes the underlying HTTP stream when iteration completes or exits early. The changelog records this behavior. Tests cover terminal events, explicit closure, and asynchronous cancellation.

Changes: Job event stream cleanup

Layer / File(s)	Summary
Close job event streams on exit src/comfy_low/transport.py, src/comfy_sdk/jobs.py, tests/test_event_stream_cleanup.py, CHANGELOG.md	The low-level event methods declare generator return types. The synchronous and asynchronous Job.events methods close their iterators when iteration exits. Tests cover terminal completion, explicit closure, and asynchronous cancellation. The changelog records the cleanup behavior.

Priority: Normal

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Suggested reviewers: wei-hai, mattmillerai

Merge Risk: Moderate · previous review e6e72

Existing SDK consumers with iterator-only transport overrides may encounter cleanup failures after this change; preserve compatibility before merging.

Pre-merge checks: 5

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the main change: closing job event streams owned by the iterators.
Docstring Coverage		Docstring coverage is inconclusive: files from earlier reviews still need to be rechecked within the check's analysis limits. Not blocking.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 1

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Inline comments:
Review comments at @src/comfy_sdk/jobs.py:
- Line 266: Update Job.events() and its async counterpart to preserve Iterator
and AsyncIterator return annotations, and only close returned streams when they
provide a callable close or aclose method; keep cleanup for streams that support
it.

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Review info

Run configuration

• Source mode: Auto
• Repository: Comfy-Org/comfy-python-sdk
• Branch: main
• File: .coderabbit.yaml
• Commit: 3fa8ac1
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• Run ID: c2f436ca-4129-4a0c-becd-fee86d5f7f98

Commits

Reviewing files that changed from the base of the PR and between 2c75eca and e6e724c.

Files selected for processing: 3

• CHANGELOG.md
• src/comfy_low/transport.py
• src/comfy_sdk/jobs.py

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