Class StreamMixer

src/click/testing.py:138–153

Mixes ` ` and ` ` streams. The result is available in the ``output`` attribute. .. versionadded:: 8.2

class StreamMixer:
    """Mixes `<stdout>` and `<stderr>` streams.

    The result is available in the ``output`` attribute.

    .. versionadded:: 8.2
    """

    output: io.BytesIO
    stdout: BytesIOCopy
    stderr: BytesIOCopy

    def __init__(self) -> None:
        self.output = io.BytesIO()
        self.stdout = BytesIOCopy(copy_to=self.output)
        self.stderr = BytesIOCopy(copy_to=self.output)


class _NamedTextIOWrapper(io.TextIOWrapper):