How to validate an IP address with python

Configurare noua (How To)

Situatie

Given an IP adress, the task is to validate this IP address with the help of Regex

Backup

Examples:

Input: str = “203.120.223.13”
Output: Valid IPv4

Input: str = “000.12.234.23.23”
Output: Invalid IP

Input: str = “2F33:12a0:3Ea0:0302”
Output: Invalid IP

Input: str = “I.Am.not.an.ip”
Output: Invalid IP

Solutie

# Function for Validating IP
def Validate_It(IP):
    # Regex expression for validating IPv4
    regex = "(([0-9]|[1-9][0-9]|1[0-9][0-9]|"\
            "2[0-4][0-9]|25[0-5])\\.){3}"\
            "([0-9]|[1-9][0-9]|1[0-9][0-9]|"\
            "2[0-4][0-9]|25[0-5])"
    
    # Regex expression for validating IPv6
    regex1 = "((([0-9a-fA-F]){1,4})\\:){7}"\
             "([0-9a-fA-F]){1,4}"
    
    p = re.compile(regex)
    p1 = re.compile(regex1)
    # Checking if it is a valid IPv4 addresses
    if (re.search(p, IP)):
        return "Valid IPv4"
    # Checking if it is a valid IPv6 addresses
    elif (re.search(p1, IP)):
        return "Valid IPv6"
    # Return Invalid
    return "Invalid IP"
# Driver Code
# IP addresses to validate
IP = "203.120.223.13"
print(Validate_It(IP))
IP = "fffe:3465:efab:23fe:2235:6565:aaab:0001"
print(Validate_It(IP))
IP = "2F33:12a0:3Ea0:0302"
print(Validate_It(IP))
Output:

Valid IPv4
Valid IPv6
Invalid IP

Tip solutie

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