What do you think about this?#utils.pydef is_http_url(s):        Returns true if s is valid http url, else false     Arguments:    - `s`:        if re.match('https?://(?:www)?(?:[\w-]{2,255}(?:\.\w{2,6}){1,2})(?:/[\w&%?#-]{1,300})?',s):        return True    else:        return False#utils_test.pyimport utilsclass TestHttpUrlValidating(unittest.TestCase):     def test_validating(self):                        self.assertEqual(utils.is_http_url('https://google.com'),True)        self.assertEqual(utils.is_http_url('http://www.google.com/r-o_ute?key=value'),True)        self.assertEqual(utils.is_http_url('aaaaaa'),False)Is this enough? I'm going to insert URLs into database.  Are there other ways to validate it?
HTTP URL validating
python;regex;validation;url;http
I would check out Django's validator - I'm willing to bet it's going to be decent, and it's going to be very well tested.regex = re.compile(    r'^(?:http|ftp)s?://' # http:// or https://    r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+(?:[A-Z]{2,6}\.?|[A-Z0-9-]{2,}\.?)|' # domain...    r'localhost|' # localhost...    r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}|' # ...or ipv4    r'\[?[A-F0-9]*:[A-F0-9:]+\]?)' # ...or ipv6    r'(?::\d+)?' # optional port    r'(?:/?|[/?]\S+)$', re.IGNORECASE)This covers a few edge cases like IP addresses and ports. Obviously some stuff (like FTP links) you might not want to accept, but it'd be a good place to start.