_async_format_data() — anthropic-sdk-python Function Reference

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

Function python AnthropicClient AsyncAPI called by 1

Entity Profile

AnthropicClient→ AsyncAPI→ _async_format_data() — anthropic-sdk-python Function Reference

Dependency Diagram

graph TD
  b51a5eb9_e364_3609_4727_30f9ff170bf3["_async_format_data()"]
  17ea9c01_2df6_304d_71e2_31af17ed7395["_transform.py"]
  b51a5eb9_e364_3609_4727_30f9ff170bf3 -->|defined in| 17ea9c01_2df6_304d_71e2_31af17ed7395
  6db2b331_e127_3cb2_32c8_72a1730d0041["_async_transform_recursive()"]
  6db2b331_e127_3cb2_32c8_72a1730d0041 -->|calls| b51a5eb9_e364_3609_4727_30f9ff170bf3
  style b51a5eb9_e364_3609_4727_30f9ff170bf3 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/anthropic/_utils/_transform.py lines 402–426

async def _async_format_data(data: object, format_: PropertyFormat, format_template: str | None) -> object:
    if isinstance(data, (date, datetime)):
        if format_ == "iso8601":
            return data.isoformat()

        if format_ == "custom" and format_template is not None:
            return data.strftime(format_template)

    if format_ == "base64" and is_base64_file_input(data):
        binary: str | bytes | None = None

        if isinstance(data, pathlib.Path):
            binary = await anyio.Path(data).read_bytes()
        elif isinstance(data, io.IOBase):
            binary = data.read()

            if isinstance(binary, str):  # type: ignore[unreachable]
                binary = binary.encode()

        if not isinstance(binary, bytes):
            raise RuntimeError(f"Could not read bytes from {data}; Received {type(binary)}")

        return base64.b64encode(binary).decode("ascii")

    return data