Python program to validate an IP Address
Prerequisite: Python Regex
Given an IP address as input, write a Python program to check whether the given IP Address is Valid or not.
What is an IP (Internet Protocol) Address?
Every computer connected to the Internet is identified by a unique four-part string, known as its Internet Protocol (IP) address. An IP address (version 4) consists of four numbers (each between 0 and 255) separated by periods. The format of an IP address is a 32-bit numeric address written as four decimal numbers (called octets) separated by periods; each number can be written as 0 to 255 (E.g. – 0.0.0.0 to 255.255.255.255).
Input: 192.168.0.1 Output: Valid Ip address Input: 220.127.116.11 Output: Valid Ip address Input: 618.104.22.168 Output: Invalid Ip address Input:22.214.171.124 Output: Valid Ip address
In this program, we are using search() method of re module.
re.search() : This method either returns None (if the pattern doesn’t match), or re.MatchObject that contains information about the matching part of the string. This method stops after the first match, so this is best suited for testing a regular expression more than extracting data.
Let’s see the Python program to validate an IP address :
Valid Ip address Valid Ip address Invalid Ip address