* refactor(rust-bridge): return an unstarted Execution from native entrypoints and drive it in Python
Rust's run_call built Python streams itself and imported
litellm.rust_bridge.streams by name, so sync calls were driven in Rust
while async calls came back as a Rust-made coroutine. Every native
inference entrypoint now returns one unstarted Execution and
public_execution.py drives it with lifecycle.run or lifecycle.drive,
wrapping streams and _hidden_params on the Python side. Rust only
imports the lifecycle step classes through StepTypes, and
python-bridge/src/lifecycle.rs, PythonLifecycle and streams.py are gone.
The adapter trusts the _native.pyi contract with a single cast instead
of a per-request runtime_checkable isinstance. Binding tests assert the
adapter starts the execution and returns its completed value rather
than checking callable identity.
* refactor(rust-bridge): fold lifecycle and public_execution into one execution module
The public stream wrappers only forwarded to the lifecycle streams and added the
header dict, so the streams now carry _hidden_params themselves. lifecycle.py no
longer held any call lifecycle, just the Execution driver, so it is renamed to
execution.py and absorbs the synchronous and asynchronous adapters
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(rust-bridge): keep execution.py free of third-party imports
The host-python tests load execution.py into a bare interpreter, so the
pydantic header validation broke them. The stream head comes from the
binding's encode_stream_head, which always builds a str-keyed dict
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* test(host-python): preserve pre-async hook coverage after execution handoff
* style(rust-bridge): sort litellm_host_python imports
Co-Authored-By: Yujong Lee <yujong@berri.ai>
* test(rust-bridge): drive unstarted native calls through execution in the split lifecycle tests
Co-Authored-By: Yujong Lee <yujong@berri.ai>
* fix(rust-bridge): mark execution TypeVar as Final
Co-Authored-By: Yujong Lee <yujong@berri.ai>
* test(rust-bridge): cover stream close, read failure, and sync suspension in execution
Co-Authored-By: Yujong Lee <yujong@berri.ai>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
* refactor(host-python): run the Python driver as one async body
Co-Authored-By: Yujong Lee <yujong@berri.ai>
* refactor(host-python): give the driver a PythonCaller with named suspensions
PythonTask becomes PythonCaller with await_python, open_stream and yield_chunk, so the call body no longer builds Suspension values or maps stream replies itself
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* refactor(host-python): collect host failures in a thiserror Error enum
missing_state() and the inline PyRuntimeError/PyTypeError messages become Error variants with one From<Error> for PyErr, and InvokeError derives thiserror so From<PyErr> comes from #[from]
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* docs(host-python): note the canonical HostError import alias in AGENTS.md
Co-Authored-By: Yujong Lee <yujong@berri.ai>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
