python实现将IP地址转换为数字

ip_addr='192.168.2.10'

# transfer ip to int
def ip2long(ip):
ip_list=ip.split('.')
result=0
for i in range(4):  #0,1,2,3
result=result+int(ip_list[i])*256**(3-i)
return result

long=3232236042

# transfer int to ip
def long2ip(long):
floor_list=[]
yushu=long
for i in reversed(range(4)):   #3,2,1,0
res=divmod(yushu,256**i)
floor_list.append(str(res[0]))
yushu=res[1]
return '.'.join(floor_list)

a=long2ip(long)
print(a)