Conversion from IP string to integer, and backward in Python
#!/usr/bin/env pythonimport socketimport structdef ip2int(addr): return struct.unpack("!I", socket.inet_aton(addr))[0]def int2ip(addr): return socket.inet_ntoa(struct.pack("!I", addr))print(int2ip(0xc0a80164)) # 192.168.1.100print(ip2int('10.0.0.1')) # 167772161
Python 3 has ipaddress module which features very simple conversion:
int(ipaddress.IPv4Address("192.168.0.1"))str(ipaddress.IPv4Address(3232235521))
In pure python without use additional module
def IP2Int(ip): o = map(int, ip.split('.')) res = (16777216 * o[0]) + (65536 * o[1]) + (256 * o[2]) + o[3] return resdef Int2IP(ipnum): o1 = int(ipnum / 16777216) % 256 o2 = int(ipnum / 65536) % 256 o3 = int(ipnum / 256) % 256 o4 = int(ipnum) % 256 return '%(o1)s.%(o2)s.%(o3)s.%(o4)s' % locals()# Exampleprint('192.168.0.1 -> %s' % IP2Int('192.168.0.1'))print('3232235521 -> %s' % Int2IP(3232235521))Result:
192.168.0.1 -> 32322355213232235521 -> 192.168.0.1