python IPy库

Website: https://github.com/haypo/python-ipy/

安装：

easy_install IPy

 

>>> from IPy import IP

>>> dir(IP)                     

['__add__', '__cmp__', '__contains__', '__doc__', '__eq__', '__getitem__', '__hash__', '__init__', '__len__', '__lt__', '__module__', '__nonzero__', '__repr__', '__str__', '_getIPv4Map', '_printPrefix', 'broadcast', 'int', 'iptype', 'len', 'make_net', 'net', 'netmask', 'overlaps', 'prefixlen', 'reverseName', 'reverseNames', 'strBin', 'strCompressed', 'strDec', 'strFullsize', 'strHex', 'strNetmask', 'strNormal', 'version']

>>> IP('172.29.20.80/28').len()  —— IP数量

16

>>> IP('172.29.20.80/28').net()  —— 网段   

IP('172.29.20.80')

>>> IP('172.29.20.80/28').netmask() —— 掩码

IP('255.255.255.240')

>>> IP('172.29.20.0/24').prefixlen() —— 掩码，INT型

24

>>> IP('172.29.20.0/24').strNormal(0) —— 网段

'172.29.20.0'

>>> IP('172.29.20.0/24').strNormal(1) —— 网段 + 掩码

'172.29.20.0/24'

>>> IP('172.29.20.0/24').strNormal(2) —— 网段 + 掩码

'172.29.20.0/255.255.255.0'

>>> IP('172.29.20.0/24').strNormal(3) —— 网段 + 掩码

'172.29.20.0-172.29.20.255'

>>> IP('172.29.20.0/24').strNetmask() —— 掩码

'255.255.255.0'

>>> IP('172.29.20.80/28').strNetmask() —— 掩码

'255.255.255.240'

>>> IP('172.29.20.0/24').version() —— IP v4 or v6版本号

4

>>> '127.0.0.1' in IP('127.0.0.0/24')

True

>>> IP('127.0.0.0/24') in IP('127.0.0.0/25')

False

>>> print(IP('192.168.1.1').iptype())

PRIVATE

>>> print(IP('152.168.1.1').iptype()) 

PUBLIC

>>> help(IP) —— 可以看到最详细的文档,更多的方法

 

>>> ip=IP('127.0.0.0/30')

>>> for i in ip:

...     print(i)

... 

127.0.0.0

127.0.0.1

127.0.0.2

127.0.0.3

>>> for i in ip:

...     print(type(i))

... 

<type 'instance'>

<type 'instance'>

<type 'instance'>

<type 'instance'>

>>> print(ip)

127.0.0.0/30

>>> for i in ip:            

...     print(str(i))

... 

127.0.0.0

127.0.0.1

127.0.0.2

127.0.0.3

>>> print(ip[2])

127.0.0.2

>>> print(str(ip[2]))

127.0.0.2

 

其他常用方法介绍：

 |  __cmp__(self, other) —— 比较大小

 |      Called by comparison operations.

 |      

 |      Should return a negative integer if self < other, zero if self

 |      == other, a positive integer if self > other.

 |      

 |      Networks with different prefixlen are considered non-equal.

 |      Networks with the same prefixlen and differing addresses are

 |      considered non equal but are compared by their base address

 |      integer value to aid sorting of IP objects.

 |      

 |      The version of Objects is not put into consideration.

 |      

 |      >>> IP('10.0.0.0/24') > IP('10.0.0.0')

 |      1

 |      >>> IP('10.0.0.0/24') < IP('10.0.0.0')

 |      0

 |      >>> IP('10.0.0.0/24') < IP('12.0.0.0/24')

 |      1

 |      >>> IP('10.0.0.0/24') > IP('12.0.0.0/24')

 |      0

 |  __contains__(self, item) —— 检查包含关系

 |      Called to implement membership test operators.

 |      

 |      Should return true if item is in self, false otherwise. Item

 |      can be other IP-objects, strings or ints.

 |      

 |      >>> IP('195.185.1.1').strHex()

 |      '0xc3b90101'

 |      >>> 0xC3B90101 in IP('195.185.1.0/24')

 |      True

 |      >>> '127.0.0.1' in IP('127.0.0.0/24')

 |      True

 |      >>> IP('127.0.0.0/24') in IP('127.0.0.0/25')

 |      False

 |  overlaps(self, item) —— 检查是否重叠

 |      Check if two IP address ranges overlap.

 |      

 |      Returns 0 if the two ranges don't overlap, 1 if the given

 |      range overlaps at the end and -1 if it does at the beginning.

 |      

 |      >>> IP('192.168.0.0/23').overlaps('192.168.1.0/24')

 |      1

 |      >>> IP('192.168.0.0/23').overlaps('192.168.1.255')

 |      1

 |      >>> IP('192.168.0.0/23').overlaps('192.168.2.0')

 |      0

 |      >>> IP('192.168.1.0/24').overlaps('192.168.0.0/23')

 |      -1

 

 

根据ip地址和子网掩码计算网段地址和广播地址（原创） Python里有一个专门处理该类问题的IP类库，来看看：

view sourceprint?01 #! /usr/bin/env python

02

03 import sys

04 from IPy import IP

05

06 address = sys.argv[1]

07 netmask = sys.argv[2]

08

09 #print address,netmask

10

11 #help(IP)

12 networkAddress = IP(address).make_net(netmask) # init a IP instance, can with netmask directly, or use make_net(netmask)

13 bcastAddress = IP(networkAddress).broadcast() # return the broadcast ip address

14

15 print networkAddress

16 print bcastAddress