Python integer and IP address translation [go]

We sometimes swap an integer with an IP address, and the Python code makes it simple.
Converts an integer, such as 2000000, into an IP address

Import Socket Import struct>>> int_ip = 123456789>>> ip = Socket.inet_ntoa (struct.pack ('I ', socket.htonl (int_ip))      #int to IP address'7.91.205.21  '>>> Socket.ntohl (Struct.unpack ("I", Socket.inet_aton (str (IP))) [ 0])     #IP address to int123456789L

Actually this is the conversion of the binary number, we can write our own code

# Integer to IP address format

def ch1 (num):              = []             for in Range (                  4):                  %256)/=        return  '. '. Join (s[::-1])>>> ch1 (123456789)'7.91.205.21 '

In a lambda way, integer TOIP address a line of code to fix

Lambda ' . '  for  in range (3,-1,-1)])>>> CH2 (123456789)'7.91.205.21' 

In lambda mode, IP addresses are converted to integers

Lambda  for  in Enumerate (X.split ('. ') [:: -1]]) >>> CH3 ('7.91.205.21')123456789