utils.py 文件源码

def valid_url(self, url):
        p = re.compile(
            r'^(?:http|ftp)s?://'
            r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+(?:[A-Z]{2,6}\.?|[A-Z0-9-]{2,}\.?)|'  # noqa
            r'localhost|'
            r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})'
            r'(?::\d+)?'
            r'(?:/?|[/?]\S+)$',
            re.IGNORECASE)
        if p.match(url):
            return True
        else:
            return False