to_thread() — anthropic-sdk-python Function Reference

Architecture documentation for the to_thread() function in _sync.py from the anthropic-sdk-python codebase.

Function python AnthropicClient SyncAPI called by 1

Entity Profile

AnthropicClient→ SyncAPI→ to_thread() — anthropic-sdk-python Function Reference

Dependency Diagram

graph TD
  a59a3f56_0145_926b_7f5e_8c49b5353e5a["to_thread()"]
  3d1d47e4_c6e3_27f4_3ae5_5b770d5eec83["_sync.py"]
  a59a3f56_0145_926b_7f5e_8c49b5353e5a -->|defined in| 3d1d47e4_c6e3_27f4_3ae5_5b770d5eec83
  0cf43326_8958_e075_23bd_639f762e2a70["asyncify()"]
  0cf43326_8958_e075_23bd_639f762e2a70 -->|calls| a59a3f56_0145_926b_7f5e_8c49b5353e5a
  style a59a3f56_0145_926b_7f5e_8c49b5353e5a fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/anthropic/_utils/_sync.py lines 16–24

async def to_thread(
    func: Callable[T_ParamSpec, T_Retval], /, *args: T_ParamSpec.args, **kwargs: T_ParamSpec.kwargs
) -> T_Retval:
    if sniffio.current_async_library() == "asyncio":
        return await asyncio.to_thread(func, *args, **kwargs)

    return await anyio.to_thread.run_sync(
        functools.partial(func, *args, **kwargs),
    )