fixed get_ip again

Author: thatging3rkid

network/utils.py

@@ -13,5 +13,5 @@ def get_ip(ifname):
     return socket.inet_ntoa(fcntl.ioctl(
         s.fileno(),
         0x8915,  # SIOCGIFADDR
-        struct.pack('256s', ifname[:15])
+        struct.pack('256s', bytes(ifname[:15], 'utf-8'))
     )[20:24])