# Buggy code
def sort_stream(
    input_stream: TextIO,
    output_stream: TextIO,
    extension: Optional[str] = None,
    config: Config = DEFAULT_CONFIG,
    file_path: Optional[Path] = None,
    disregard_skip: bool = False,
    **config_kwargs,
):
    """Sorts any imports within the provided code stream, outputs to the provided output stream.
    Directly returns nothing.

    - **input_stream**: The stream of code with imports that need to be sorted.
    - **output_stream**: The stream where sorted imports should be written to.
    - **extension**: The file extension that contains imports. Defaults to filename extension or py.
    - **config**: The config object to use when sorting imports.
    - **file_path**: The disk location where the code string was pulled from.
    - **disregard_skip**: set to `True` if you want to ignore a skip set in config for this file.
    - ****config_kwargs**: Any config modifications.
    """
    config = _config(path=file_path, config=config, **config_kwargs)
    content_source = str(file_path or "Passed in content")
    if not disregard_skip:
        if file_path and config.is_skipped(file_path):
            raise FileSkipSetting(content_source)

    _internal_output = output_stream

    if config.atomic:
        try:
            file_content = input_stream.read()
            compile(file_content, content_source, "exec", 0, 1)
            input_stream = StringIO(file_content)
        except SyntaxError:
            raise ExistingSyntaxErrors(content_source)

        if not output_stream.readable():
            _internal_output = StringIO()

    try:
        changed = _sort_imports(
            input_stream,
            _internal_output,
            extension=extension or (file_path and file_path.suffix.lstrip(".")) or "py",
            config=config,
        )
    except FileSkipComment:
        raise FileSkipComment(content_source)

    if config.atomic:
        _internal_output.seek(0)
        try:
            compile(_internal_output.read(), content_source, "exec", 0, 1)
            _internal_output.seek(0)
            if _internal_output != output_stream:
                output_stream.write(_internal_output.read())
        except SyntaxError:  # pragma: no cover
            raise IntroducedSyntaxErrors(content_source)

    return changed


# Traceback (TypeError)
$ cat demo.py
import os, sys, collections

$ isort --diff - < demo.py
Traceback (most recent call last):
File "/home/peter/.virtualenvs/isort/bin/isort", line 11, in <module>
load_entry_point('isort', 'console_scripts', 'isort')()
File "/home/play/isort/isort/main.py", line 600, in main
**arguments,
File "/home/play/isort/isort/api.py", line 104, in sorted_imports
config = _config(path=file_path, config=config, **config_kwargs)
File "/home/play/isort/isort/api.py", line 47, in _config
config = Config(**config_kwargs)
File "/home/play/isort/isort/settings.py", line 300, in __init__
super().__init__(sources=tuple(sources), **combined_config)  # type: ignore
TypeError: __init__() got an unexpected keyword argument 'show_diff'

# Fixed code
def sort_stream(
    input_stream: TextIO,
    output_stream: TextIO,
    extension: Optional[str] = None,
    config: Config = DEFAULT_CONFIG,
    file_path: Optional[Path] = None,
    disregard_skip: bool = False,
    show_diff: bool = False,
    **config_kwargs,
):
    """Sorts any imports within the provided code stream, outputs to the provided output stream.
    Directly returns nothing.

    - **input_stream**: The stream of code with imports that need to be sorted.
    - **output_stream**: The stream where sorted imports should be written to.
    - **extension**: The file extension that contains imports. Defaults to filename extension or py.
    - **config**: The config object to use when sorting imports.
    - **file_path**: The disk location where the code string was pulled from.
    - **disregard_skip**: set to `True` if you want to ignore a skip set in config for this file.
    - ****config_kwargs**: Any config modifications.
    """
    if show_diff:
        _output_stream = StringIO()
        _input_stream = StringIO(input_stream.read())
        changed = sort_stream(
            input_stream=_input_stream,
            output_stream=_output_stream,
            extension=extension,
            config=config,
            file_path=file_path,
            disregard_skip=disregard_skip,
            **config_kwargs,
        )
        _output_stream.seek(0)
        _input_stream.seek(0)
        show_unified_diff(
            file_input=_input_stream.read(),
            file_output=_output_stream.read(),
            file_path=file_path,
            output=output_stream,
        )
        return changed

    config = _config(path=file_path, config=config, **config_kwargs)
    content_source = str(file_path or "Passed in content")
    if not disregard_skip:
        if file_path and config.is_skipped(file_path):
            raise FileSkipSetting(content_source)

    _internal_output = output_stream

    if config.atomic:
        try:
            file_content = input_stream.read()
            compile(file_content, content_source, "exec", 0, 1)
            input_stream = StringIO(file_content)
        except SyntaxError:
            raise ExistingSyntaxErrors(content_source)

        if not output_stream.readable():
            _internal_output = StringIO()

    try:
        changed = _sort_imports(
            input_stream,
            _internal_output,
            extension=extension or (file_path and file_path.suffix.lstrip(".")) or "py",
            config=config,
        )
    except FileSkipComment:
        raise FileSkipComment(content_source)

    if config.atomic:
        _internal_output.seek(0)
        try:
            compile(_internal_output.read(), content_source, "exec", 0, 1)
            _internal_output.seek(0)
            if _internal_output != output_stream:
                output_stream.write(_internal_output.read())
        except SyntaxError:  # pragma: no cover
            raise IntroducedSyntaxErrors(content_source)

    return changed