test_coding_standards.py 文件源码

def find_pep8_errors(cls, filename=None, lines=None):
        try:
            sys.stdout = cStringIO.StringIO()
            config = {}

            # Ignore long lines on test files, as the test names can get long
            # when following our test naming standards.
            if cls._is_test(filename):
                config['ignore'] = ['E501']

            checker = pep8.Checker(filename=filename, lines=lines,
                                   **config)
            checker.check_all()
            output = sys.stdout.getvalue()
        finally:
            sys.stdout = sys.__stdout__

        errors = []
        for line in output.split('\n'):
            parts = line.split(' ', 2)
            if len(parts) == 3:
                location, error, desc = parts
                line_no = location.split(':')[1]
                errors.append('%s ln:%s %s' % (error, line_no, desc))
        return errors