How to use the pep8.filename_match function in pep8

try:
        for file_ in files_modified:
            # get the staged version of the file
            gitcmd_getstaged = "git show :%s" % file_
            _, out, _ = run(gitcmd_getstaged, raw_output=True, decode=False)
            # write the staged version to temp dir with its full path to
            # avoid overwriting files with the same name
            dirname, filename = os.path.split(os.path.abspath(file_))
            prefix = os.path.commonprefix([dirname, tmpdir])
            dirname = compat.relpath(dirname, start=prefix)
            dirname = os.path.join(tmpdir, dirname)
            if not os.path.isdir(dirname):
                os.makedirs(dirname)

            # check_files() only does this check if passed a dir; so we do it
            if ((pep8.filename_match(file_, filepatterns) and
                 not flake8_style.excluded(file_))):

                filename = os.path.join(dirname, filename)
                files_to_check.append(filename)
                # write staged version of file to temporary directory
                with open(filename, "wb") as fh:
                    fh.write(out)

        # Run the checks
        report = flake8_style.check_files(files_to_check)
    # remove temporary directory
    finally:
        shutil.rmtree(tmpdir, ignore_errors=True)

    if strict:
        return report.total_errors

if self.excluded(dirname):
        return 0
    counters = self.options.report.counters
    verbose = self.options.verbose
    filepatterns = self.options.filename
    runner = self.runner
    for root, dirs, files in os.walk(dirname):
        if verbose:
            print('directory ' + root)
        counters['directories'] += 1
        for subdir in sorted(dirs):
            if self.excluded(os.path.join(root, subdir)):
                dirs.remove(subdir)
        for filename in sorted(files):
            # contain a pattern that matches?
            if ((pep8.filename_match(filename, filepatterns) and
                 not self.excluded(filename))):
                runner(os.path.join(root, filename))

def excluded(self, filename):
    """Check if options.exclude contains a pattern that matches filename."""
    basename = os.path.basename(filename)
    return any((pep8.filename_match(filename, self.options.exclude,
                               default=False),
                pep8.filename_match(basename, self.options.exclude,
                               default=False)))

def excluded(self, filename):
    """Check if options.exclude contains a pattern that matches filename."""
    basename = os.path.basename(filename)
    return any((pep8.filename_match(filename, self.options.exclude,
                               default=False),
                pep8.filename_match(basename, self.options.exclude,
                               default=False)))

def excluded(self, filename):
    """Check if options.exclude contains a pattern that matches filename."""
    basename = os.path.basename(filename)
    return any((pep8.filename_match(filename, self.options.exclude,
                               default=False),
                pep8.filename_match(basename, self.options.exclude,
                               default=False)))

def excluded(self, filename):
    """
    Check if options.exclude contains a pattern that matches filename.
    """
    basename = os.path.basename(filename)
    return any((pep8.filename_match(filename, self.options.exclude,
                                    default=False),
                pep8.filename_match(basename, self.options.exclude,
                                    default=False)))

if self.excluded(dirname):
        return 0
    counters = self.options.report.counters
    verbose = self.options.verbose
    filepatterns = self.options.filename
    runner = self.runner
    for root, dirs, files in os.walk(dirname):
        if verbose:
            print('directory ' + root)
        counters['directories'] += 1
        for subdir in sorted(dirs):
            if self.excluded(os.path.join(root, subdir)):
                dirs.remove(subdir)
        for filename in sorted(files):
            # contain a pattern that matches?
            if ((pep8.filename_match(filename, filepatterns) and
                 not self.excluded(filename))):
                runner(os.path.join(root, filename))

if self.excluded(dirname):
        return 0
    counters = self.options.report.counters
    verbose = self.options.verbose
    filepatterns = self.options.filename
    runner = self.runner
    for root, dirs, files in os.walk(dirname):
        if verbose:
            print('directory ' + root)
        counters['directories'] += 1
        for subdir in sorted(dirs):
            if self.excluded(os.path.join(root, subdir)):
                dirs.remove(subdir)
        for filename in sorted(files):
            # contain a pattern that matches?
            if ((pep8.filename_match(filename, filepatterns) and
                 not self.excluded(filename))):
                runner(os.path.join(root, filename))

def excluded(self, filename):
    """Check if options.exclude contains a pattern that matches filename."""
    basename = os.path.basename(filename)
    return any((pep8.filename_match(filename, self.options.exclude,
                               default=False),
                pep8.filename_match(basename, self.options.exclude,
                               default=False)))