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python——IPy库 (2011-03-09 15:29)

分类： python

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

>>> 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

>>> 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

>>> '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))

...

>>> 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

03 import sys

04 from IPy import IP

06 address = sys.argv[1]

07 netmask = sys.argv[2]

09 #print address,netmask

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

15 print networkAddress

16 print bcastAddress

转载于:https://www.cnblogs.com/babykick/archive/2011/11/08/2241412.html

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