IPy

It works similar to the Net::IP Perl module.

It's main features allow for easy parsing and handling for IPv4 and IPv6 addresses and networks.

Features:

• It can detect about a dozen different ways of expressing IP addresses and networks
• Parse IP addresses
• It can distinguish between IPv4 and IPv6 addresses
• Network mask and prefixes
• Derive network address
• Converts address to string

What is new in this release:

• Added carrier grade NAT ranges
• Unbreak lots of packing systems by not having a letter in the release version

What is new in version 0.81:

• Added network mask awareness to v46map().
• Fixed Python 3 errors in IPSet class.
• Make IPSet base class be object when MutableSet isn't available, fixing errors in Python 2.5.

What is new in version 0.76:

• Added IP.get_mac() method: get the 802.3 MAC address from IPv6 RFC 2464 address.
• Fixes IP('::/0')[0]: return an IPv6 instead of an IPv4 address.

What is new in version 0.75:

• IP('::/0').netmask() gives IP('::') instead of IP('0.0.0.0').

What is new in version 0.74:

• Fix tests for Python 3.1 and 3.2
• ip.__nonzero__() and (ipa in ipb) return a bool instead of 0 or 1
• IP('0.0.0.0/0') + IP('0.0.0.0/0') raises an error.

What is new in version 0.73:

• Support Python 3: setup.py runs 2to3.
• Update the ranges for IPv6 IPs.
• Fix reverseName() and reverseNames() for IPv4 in IPv6 addresses.
• Drop support of Python < 2.5.

Requirements:

• Python 2.5 or higher

Limitations:

• It doesn't share non-CIDR netmasks.