Python-ip conversion between an address and an integer

1. Convert Integers to IP:

Idea: Convert IP address to unsigned 32-bit binary, and then 8 bits to divide, every 8 bits into decimal.

#!usr/bin/python2#Encoding=utf-83#1. Converting integers to 32-bit unsigned binary4defInttoip (num):5 S = []  6 g = []  7 h = []  8 forIinchRange (32):  9 A = num%2 10S.insert (0,a)num = NUM/2 12Prints13#2. Divide every 8 bits, convert 4 8-bit binary into decimal, plus. Connect. 14 forIinchXrange (0,32,8): G.append (s[i:i+8]) 16Printg17 forTempinchg:sum =0j =020 forTemp2inchTemp:sum = sum + temp2* (2** (7-j))J + = 1 23Printsum24h.append (str (sum))25return '.'. Join (H[::1]) A=inttoip (123456789) 27PrintA

2. Convert the IP address to an integer:

Idea: Convert four bits of IP to 8-bit binary, go to "." After the integration, and then converted into decimal.

#!usr/bin/python2#Encoding=utf-83#converts an IP address to a numeric string, such as "123456789" after 7.91.205.21 conversion4#1. Split, 2. Multiply the first bit by 256**4, the second is multiplied by 256**3, the third is multiplied by the 256**2, the fourth bit is multiplied by 256, and the result is added .5defiptoint (num):6#1. Convert the IP address to a 32-bit binary. 7 s = num.split ('.')  8 h = []  9 g = [] 10 forTempinchS:11 while(temp!=0):temp =Int (temp)A = temp% 2 14H.insert (0,a)temp = TEMP/2 16ifLen (h)! = 8: 17 forIinchRange (8-Len (h)):18H.insert (0,0)19g.extend (h)h = [] 21st#Print G22#2. Convert the binary into integers:sum =0j =025 forTemp2inchg:sum = sum + temp2* (2** (31-j))J + = 1 28PrintsumIptoint ("7.91.205.21")

Note: Beginner python, the code is a bit low, please forgive me!

Python-ip conversion between an address and an integer