def get_style_guide()

in pylib/flake8/flake8/engine.py [0:0]

• 48 lines of code
• 19 McCabe index (conditional complexity)

def get_style_guide(**kwargs):
    """Parse the options and configure the checker. This returns a sub-class
    of ``pep8.StyleGuide``."""
    kwargs['parser'], options_hooks = get_parser()
    styleguide = StyleGuide(**kwargs)
    options = styleguide.options
    _disable_extensions(kwargs['parser'], options)

    if options.exclude and not isinstance(options.exclude, list):
        options.exclude = pep8.normalize_paths(options.exclude)
    elif not options.exclude:
        options.exclude = []

    # Add patterns in EXTRA_EXCLUDE to the list of excluded patterns
    options.exclude.extend(pep8.normalize_paths(EXTRA_EXCLUDE))

    for options_hook in options_hooks:
        options_hook(options)

    if util.warn_when_using_jobs(options):
        if not multiprocessing:
            warnings.warn("The multiprocessing module is not available. "
                          "Ignoring --jobs arguments.")
        if util.is_windows():
            warnings.warn("The --jobs option is not available on Windows. "
                          "Ignoring --jobs arguments.")
        if util.is_using_stdin(styleguide.paths):
            warnings.warn("The --jobs option is not compatible with supplying "
                          "input using - . Ignoring --jobs arguments.")
        if options.diff:
            warnings.warn("The --diff option was specified with --jobs but "
                          "they are not compatible. Ignoring --jobs arguments."
                          )

    if options.diff:
        options.jobs = None

    force_disable_jobs = util.force_disable_jobs(styleguide)

    if multiprocessing and options.jobs and not force_disable_jobs:
        if options.jobs.isdigit():
            n_jobs = int(options.jobs)
        else:
            try:
                n_jobs = multiprocessing.cpu_count()
            except NotImplementedError:
                n_jobs = 1
        if n_jobs > 1:
            options.jobs = n_jobs
            reporter = QueueReport
            if options.quiet:
                reporter = BaseQReport
                if options.quiet == 1:
                    reporter = FileQReport
            report = styleguide.init_report(reporter)
            report.input_file = styleguide.input_file
            styleguide.runner = report.task_queue.put

    return styleguide