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This is PR 2 of the Python SDK PyPI publishing split. [PR 1](https://github.com/openai/codex/pull/18862) refreshed the generated SDK bindings; this PR makes the runtime package itself publishable, and PR 3 will wire the SDK package/version pinning to this runtime package. ## Summary - Rename the runtime distribution to `openai-codex-cli-bin` while keeping the import package as `codex_cli_bin`. - Make the runtime package wheel-only and build `py3-none-<platform>` wheels instead of interpreter-specific wheels. - Add `stage-runtime --codex-version` and `--platform-tag` so release staging can produce the platform wheel matrix from Codex release tags. - Add focused artifact workflow tests for version normalization, platform tag injection, and runtime wheel metadata. ## Why Rename There is already an unofficial PyPI package, [`codex-bin`](https://pypi.org/project/codex-bin/), distributing OpenAI Codex binaries. Publishing the official SDK runtime dependency as `openai-codex-cli-bin` makes the ownership clear, avoids confusing the SDK-pinned runtime wheel with that unowned wrapper, and keeps the import package unchanged as `codex_cli_bin`. ## Tests - `uv run --extra dev pytest tests/test_artifact_workflow_and_binaries.py` -> 21 passed - `uv run --extra dev python scripts/update_sdk_artifacts.py stage-runtime /tmp/codex-python-pr2-rebased/runtime-stage /tmp/codex-python-pr2-rebased/codex --codex-version rust-v0.116.0-alpha.1 --platform-tag macosx_11_0_arm64` - `uv run --with build --extra dev python -m build --wheel /tmp/codex-python-pr2-rebased/runtime-stage` - `uv run --with twine --extra dev twine check /tmp/codex-python-pr2-rebased/runtime-stage/dist/openai_codex_cli_bin-0.116.0a1-py3-none-macosx_11_0_arm64.whl` ## Note - Full `uv run --extra dev pytest` currently fails because regenerating from schemas already on `main` adds new DeviceKey Python types. I left that generated catch-up out of this runtime-only PR.
104 lines
3.4 KiB
Markdown
104 lines
3.4 KiB
Markdown
# Codex App Server Python SDK (Experimental)
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Experimental Python SDK for `codex app-server` JSON-RPC v2 over stdio, with a small default surface optimized for real scripts and apps.
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The generated wire-model layer is currently sourced from the bundled v2 schema and exposed as Pydantic models with snake_case Python fields that serialize back to the app-server’s camelCase wire format.
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## Install
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```bash
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cd sdk/python
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python -m pip install -e .
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```
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Published SDK builds pin an exact `openai-codex-cli-bin` runtime dependency. For local
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repo development, either pass `AppServerConfig(codex_bin=...)` to point at a
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local build explicitly, or use the repo examples/notebook bootstrap which
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installs the pinned runtime package automatically.
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## Quickstart
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```python
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from codex_app_server import Codex
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with Codex() as codex:
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thread = codex.thread_start(model="gpt-5")
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result = thread.run("Say hello in one sentence.")
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print(result.final_response)
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print(len(result.items))
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```
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`result.final_response` is `None` when the turn completes without a final-answer
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or phase-less assistant message item.
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## Docs map
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- Golden path tutorial: `docs/getting-started.md`
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- API reference (signatures + behavior): `docs/api-reference.md`
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- Common decisions and pitfalls: `docs/faq.md`
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- Runnable examples index: `examples/README.md`
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- Jupyter walkthrough notebook: `notebooks/sdk_walkthrough.ipynb`
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## Examples
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Start here:
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```bash
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cd sdk/python
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python examples/01_quickstart_constructor/sync.py
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python examples/01_quickstart_constructor/async.py
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```
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## Runtime packaging
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The repo no longer checks `codex` binaries into `sdk/python`.
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Published SDK builds are pinned to an exact `openai-codex-cli-bin` package version,
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and that runtime package carries the platform-specific binary for the target
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wheel.
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For local repo development, the checked-in `sdk/python-runtime` package is only
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a template for staged release artifacts. Editable installs should use an
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explicit `codex_bin` override for manual SDK usage; the repo examples and
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notebook bootstrap the pinned runtime package automatically.
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## Maintainer workflow
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```bash
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cd sdk/python
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python scripts/update_sdk_artifacts.py generate-types
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python scripts/update_sdk_artifacts.py \
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stage-sdk \
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/tmp/codex-python-release/codex-app-server-sdk \
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--runtime-version 1.2.3
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python scripts/update_sdk_artifacts.py \
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stage-runtime \
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/tmp/codex-python-release/openai-codex-cli-bin \
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/path/to/codex \
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--runtime-version 1.2.3
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```
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This supports the CI release flow:
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- run `generate-types` before packaging
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- stage `codex-app-server-sdk` once with an exact `openai-codex-cli-bin==...` dependency
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- stage `openai-codex-cli-bin` on each supported platform runner with the same pinned runtime version
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- build and publish `openai-codex-cli-bin` as platform wheels only; do not publish an sdist
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## Compatibility and versioning
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- Package: `codex-app-server-sdk`
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- Runtime package: `openai-codex-cli-bin`
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- Current SDK version in this repo: `0.2.0`
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- Python: `>=3.10`
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- Target protocol: Codex `app-server` JSON-RPC v2
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- Recommendation: keep SDK and `codex` CLI reasonably up to date together
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## Notes
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- `Codex()` is eager and performs startup + `initialize` in the constructor.
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- Use context managers (`with Codex() as codex:`) to ensure shutdown.
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- Prefer `thread.run("...")` for the common case. Use `thread.turn(...)` when
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you need streaming, steering, or interrupt control.
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- For transient overload, use `codex_app_server.retry.retry_on_overload`.
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