Files
codex/sdk/python/docs/getting-started.md
Ahmed Ibrahim f1b84fac63 [5/8] Rename Python SDK package to openai-codex (#21905)
## Why

The SDK should publish under the reserved public distribution name
`openai-codex`, and its import module should match that name in the
Python style. Since package names can contain hyphens but import modules
cannot, the public import path becomes `openai_codex`.

Keeping the rename separate from the public API surface change makes the
naming change easy to review and avoids mixing it with API curation.

## What

- Rename the SDK distribution from `openai-codex-app-server-sdk` to
`openai-codex`.
- Rename the import package from `codex_app_server` to `openai_codex`.
- Keep the runtime wheel as the separate `openai-codex-cli-bin`
dependency.
- Update docs, examples, notebooks, artifact scripts, lockfile metadata,
and tests for the new distribution/module names.

## Stack

1. #21891 `[1/8]` Pin Python SDK runtime dependency
2. #21893 `[2/8]` Generate Python SDK types from pinned runtime
3. #21895 `[3/8]` Run Python SDK tests in CI
4. #21896 `[4/8]` Define Python SDK public API surface
5. This PR `[5/8]` Rename Python SDK package to `openai-codex`
6. #21910 `[6/8]` Add high-level Python SDK approval mode
7. #22014 `[7/8]` Add Python SDK app-server integration harness
8. #22021 `[8/8]` Add Python SDK Ruff formatting

## Verification

- Updated package metadata and public API tests to assert the
distribution and import names.

Co-authored-by: Codex <noreply@openai.com>
2026-05-12 00:59:25 +03:00

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# Getting Started
This is the fastest path from install to a multi-turn thread using the public SDK surface.
The SDK is experimental. Treat the API, bundled runtime strategy, and packaging details as unstable until the first public release.
## 1) Install
From repo root:
```bash
cd sdk/python
uv sync
source .venv/bin/activate
```
Requirements:
- Python `>=3.10`
- uv
- installed `openai-codex-cli-bin` runtime package, or an explicit `codex_bin` override
- local Codex auth/session configured
## 2) Run your first turn (sync)
```python
from openai_codex import Codex
with Codex() as codex:
server = codex.metadata.serverInfo
print("Server:", None if server is None else server.name, None if server is None else server.version)
thread = codex.thread_start(model="gpt-5.4", config={"model_reasoning_effort": "high"})
result = thread.run("Say hello in one sentence.")
print("Thread:", thread.id)
print("Text:", result.final_response)
print("Items:", len(result.items))
```
What happened:
- `Codex()` started and initialized `codex app-server`.
- `thread_start(...)` created a thread.
- `thread.run("...")` started a turn, consumed events until completion, and returned the final assistant response plus collected items and usage.
- `result.final_response` is `None` when no final-answer or phase-less assistant message item completes for the turn.
- use `thread.turn(...)` when you need a `TurnHandle` for streaming, steering, interrupting, or turn IDs/status
- one client can consume multiple active turns concurrently; turn streams are routed by turn ID
## 3) Continue the same thread (multi-turn)
```python
from openai_codex import Codex
with Codex() as codex:
thread = codex.thread_start(model="gpt-5.4", config={"model_reasoning_effort": "high"})
first = thread.run("Summarize Rust ownership in 2 bullets.")
second = thread.run("Now explain it to a Python developer.")
print("first:", first.final_response)
print("second:", second.final_response)
```
## 4) Async parity
Use `async with AsyncCodex()` as the normal async entrypoint. `AsyncCodex`
initializes lazily, and context entry makes startup/shutdown explicit.
```python
import asyncio
from openai_codex import AsyncCodex
async def main() -> None:
async with AsyncCodex() as codex:
thread = await codex.thread_start(model="gpt-5.4", config={"model_reasoning_effort": "high"})
result = await thread.run("Continue where we left off.")
print(result.final_response)
asyncio.run(main())
```
## 5) Resume an existing thread
```python
from openai_codex import Codex
THREAD_ID = "thr_123" # replace with a real id
with Codex() as codex:
thread = codex.thread_resume(THREAD_ID)
result = thread.run("Continue where we left off.")
print(result.final_response)
```
## 6) Public app-server types
The convenience wrappers live at the package root. Public app-server value and
event types live under:
```python
from openai_codex.types import ThreadReadResponse, Turn, TurnStatus
```
## 7) Next stops
- API surface and signatures: `docs/api-reference.md`
- Common decisions/pitfalls: `docs/faq.md`
- End-to-end runnable examples: `examples/README.md`