Retrieving network mask in Python

Question

How would one go about retrieving a network device\'s netmask (In Linux preferably, but if it\'s cross-platform then cool)? I know how in C on Linux but I can\'t find a way

Answer 1

The netifaces module deserves a mention here. Straight from the docs:

>>> netifaces.interfaces()
['lo0', 'gif0', 'stf0', 'en0', 'en1', 'fw0']

>>> addrs = netifaces.ifaddresses('en0')
>>> addrs[netifaces.AF_INET]
[{'broadcast': '10.15.255.255', 'netmask': '255.240.0.0', 'addr': '10.0.1.4'}, {'broadcast': '192.168.0.255', 'addr': '192.168.0.47'}]

Works on Windows, Linux, OS X, and probably other UNIXes.