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We can build a simple function that tells if an IP address is valid or not depending on the fact that a ValueError exception is raised by ipaddress.ip_address() for invalid IPs. This time the ip_address() function raises a ValueError exception because the string we have passed doesn’t represent a valid IP address. ValueError: '10.10.10.300' does not appear to be an IPv4 or IPv6 address Raise ValueError('%r does not appear to be an IPv4 or IPv6 address' % Now, let’s try with an invalid IP… > ipaddress.ip_address("10.10.10.300")įile "/opt/anaconda3/lib/python3.8/ipaddress.py", line 53, in ip_address

The ip_address() function returns an object of type IPv4Address, this means it’s able to translate the string into a valid IP address.

Let’s open the Python shell and see what the ipaddress.ip_address() function returns when we pass to it strings that represent a valid and an invalid IPv4 address. The simplest way to validate if a string represents an IP address is by using the Python ipaddress module. Let the validation begin! How Do I Validate an IP Address in Python? You can also validate an IP address by using a custom function or a regular expression that verify the sets of numbers an IP address is made of. This works both for IPv4 and IPv6 addresses. To validate an IP address using Python you can use the ip_address() function of the ipaddress module. This can be a requirement if you write OS level programs and not only. In your Python program you might want to validate an IP address.