def check_files(self, paths=None):
        if paths is None:
            paths = self.paths
        report = self.options.report
        runner = self.runner
        report.start()
        for path in paths:
            if os.path.isdir(path):
                self.input_dir(path)
            elif not self.excluded(path):
                runner(path)
        report.stop()
        return report
Run all checks on the paths.
dataset/ETHPy150Open kivy/plyer/plyer/tools/pep8checker/pep8.py/StyleGuide.check_files