Python regular expressions match instances of IP addresses

This article illustrates a regular expression matching IP address example. The code structure is very straightforward. Share with you for your reference.

The main implementation code is as follows:

import re
reip = re.compile(r'(?<![.d])(?:d{1,3}.){3}d{1,3}(?![.d])')
 for ip in reip.findall(line):
  print "ip>>>", ip

PS: on the regular, here for you to recommend two very convenient regular expression tools for your reference:

JavaScript regular expression online testing tool:
(link: http://tools.jb51.net/regex/javascript)

Regular expression online generation tool:
(link: http://tools.jb51.net/regex/create_reg)

I hope this article has helped you with your Python programming.