Class StreamAlreadyConsumed

src/anthropic/_response.py:608–639

Attempted to read or stream content, but the content has already been streamed. This can happen if you use a method like `.iter_lines()` and then attempt to read th entire response body afterwards, e.g. ```py response = await client.post(...) async for line in response

class StreamAlreadyConsumed(AnthropicError):
    """
    Attempted to read or stream content, but the content has already
    been streamed.

    This can happen if you use a method like `.iter_lines()` and then attempt
    to read th entire response body afterwards, e.g.

    ```py
    response = await client.post(...)
    async for line in response.iter_lines():
        ...  # do something with `line`

    content = await response.read()
    # ^ error
    ```

    If you want this behaviour you'll need to either manually accumulate the response
    content or call `await response.read()` before iterating over the stream.
    """

    def __init__(self) -> None:
        message = (
            "Attempted to read or stream some content, but the content has "
            "already been streamed. "
            "This could be due to attempting to stream the response "
            "content more than once."
            "\n\n"
            "You can fix this by manually accumulating the response content while streaming "
            "or by calling `.read()` before starting to stream."
        )
        super().__init__(message)


class ResponseContextManager(Generic[_APIResponseT]):