feat(http-client-python): generate structured JSONL and SSE response streams

[Libba Lawrence (l0lawrence)]

Summary

• generate Azure-flavor JSONL and SSE response methods as standard Generator / AsyncGenerator values yielding deserialized models
• keep transport-neutral incremental framing private in _utils/streaming.py, while generated operations own JSON parsing, event dispatch, terminal filtering, customization, and cleanup
• preserve unbranded raw-byte response iteration and add emitter, framing, generated-adapter, and live Spector coverage

Validation

• TypeScript emitter compile
• full emitter tests: 13 passed
• focused structured-streaming emitter tests: 7 passed
• framing/generated-adapter unit tests: 11 passed
• regenerated Azure streaming clients; live sync/async Spector tests: 7 passed
• regenerated unbranded streaming clients; live raw-byte compatibility tests: 6 passed
• ESLint passed
• Prettier/Black formatting checks passed
• Python source compileall passed

Validation caveats

• broad Python unit collection requires unrelated generated specialwords fixtures removed by targeted regeneration; focused streaming tests passed
• pylint, mypy, and pyright were unavailable in the existing local environment, and no dependency restore was performed

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/@typespec/http-client-python@11595

commit: 35e4f02

[github-actions]

All changed packages have been documented.

• ✅ @typespec/http-client-python

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@typespec/http-client-python - feature ✏️

Generate structured JSONL (application/jsonl) and SSE (text/event-stream) response streams for the Azure flavor. Generated methods return standard Generator[T, None, None] or AsyncGenerator[T, None] values that yield deserialized model instances. Unbranded response streams remain raw-byte iterators.,> ,> python,> for thing in client.receive():,> ...,>

[azure-sdk-automation]

You can try these changes here

🛝 Playground	🌐 Website	🛝 VSCode Extension

[github-actions]

Python emitter diff

Baseline gh:d914a19848834644d233fbcc57fdd1f6eb18b28e vs this PR.

Diff summary: 122 file(s), +12456 / -38

Rendered diff: inline on the run summary, or the emitter-diff-html artifact.

Informational check (eng/emitter-diff); does not block the PR.