python利用标准库如何获取本地IP示例详解

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标准库

Python拥有一个强大的标准库。Python语言的核心只包含数字、字符串、列表、字典、文件等常见类型和函数，而由Python标准库提供了系统管理、网络通信、文本处理、数据库接口、图形系统、XML处理等额外的功能。

Python标准库的主要功能有：

1.文本处理，包含文本格式化、正则表达式匹配、文本差异计算与合并、Unicode支持，二进制数据处理等功能

2.文件处理，包含文件操作、创建临时文件、文件压缩与归档、操作配置文件等功能

3.操作系统功能，包含线程与进程支持、IO复用、日期与时间处理、调用系统函数、日志（logging）等功能

4.网络通信，包含网络套接字，SSL加密通信、异步网络通信等功能

5.网络协议，支持HTTP，FTP，SMTP，POP，IMAP，NNTP，XMLRPC等多种网络协议，并提供了编写网络服务器的框架

6.W3C格式支持，包含HTML，SGML，XML的处理。

7.其它功能，包括国际化支持、数学运算、HASH、Tkinter等

python利用标准库获取本地IP

这个最简单,但是也最不靠谱,依赖hosts文件,如果hosts文件没配置,一般容易获取到127.0.0.1

import socket
socket.gethostbyname(socket.gethostname())

import socket
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(("8.8.8.8", 80))
print(s.getsockname()[0])
s.close()

import socket
alias myip="python -c 'import socket; print([l for l in ([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] if not ip.startswith(\"127.\")][:1], [[(s.connect((\"8.8.8.8\", 53)), s.getsockname()[0], s.close()) for s in [socket.socket(socket.AF_INET, socket.SOCK_DGRAM)]][0][1]]) if l][0][0])'"
 
 
print([l for l in ([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] if not ip.startswith("127.")][:1], [[(s.connect(('8.8.8.8', 53)), s.getsockname()[0], s.close()) for s in [socket.socket(socket.AF_INET, socket.SOCK_DGRAM)]][0][1]]) if l][0][0])
 
 
print((([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] if not ip.startswith("127.")] or [[(s.connect(("8.8.8.8", 53)), s.getsockname()[0], s.close()) for s in [socket.socket(socket.AF_INET, socket.SOCK_DGRAM)]][0][1]]) + ["no IP found"])[0])
 
 
 
print([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] if not ip.startswith("127.")][:1])
 
 
print([(s.connect(('8.8.8.8', 53)), s.getsockname()[0], s.close()) for s in [socket.socket(socket.AF_INET, socket.SOCK_DGRAM)]][0][1])

import os
import socket
 
if os.name != "nt":
 import fcntl
 import struct
 
 def get_interface_ip(ifname):
 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
 return socket.inet_ntoa(fcntl.ioctl(s.fileno(), 0x8915, struct.pack('256s',
  ifname[:15]))[20:24])
 
def get_lan_ip():
 ip = socket.gethostbyname(socket.gethostname())
 if ip.startswith("127.") and os.name != "nt":
 interfaces = [
 "eth0",
 "eth1",
 "eth2",
 "wlan0",
 "wlan1",
 "wifi0",
 "ath0",
 "ath1",
 "ppp0",
 ]
 for ifname in interfaces:
 try:
 ip = get_interface_ip(ifname)
 break
 except IOError:
 pass
 return ip

linux上根据网卡名获取ip

> import socket, struct, fcntl
> sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
> sockfd = sock.fileno()
> SIOCGIFADDR = 0x8915
>
> def get_ip(iface = 'eth0'):
... ifreq = struct.pack('16sH14s', iface, socket.AF_INET, '\x00'*14)
... try:
... res = fcntl.ioctl(sockfd, SIOCGIFADDR, ifreq)
... except:
... return None
... ip = struct.unpack('16sH2x4s8x', res)[2]
... return socket.inet_ntoa(ip)
...
> get_ip('eth0')
'10.80.40.234'
>

仅限windows

def getIPAddresses():
 from ctypes import Structure, windll, sizeof
 from ctypes import POINTER, byref
 from ctypes import c_ulong, c_uint, c_ubyte, c_char
 MAX_ADAPTER_DESCRIPTION_LENGTH = 128
 MAX_ADAPTER_NAME_LENGTH = 256
 MAX_ADAPTER_ADDRESS_LENGTH = 8
 class IP_ADDR_STRING(Structure):
 pass
 LP_IP_ADDR_STRING = POINTER(IP_ADDR_STRING)
 IP_ADDR_STRING._fields_ = [
 ("next", LP_IP_ADDR_STRING),
 ("ipAddress", c_char * 16),
 ("ipMask", c_char * 16),
 ("context", c_ulong)]
 class IP_ADAPTER_INFO (Structure):
 pass
 LP_IP_ADAPTER_INFO = POINTER(IP_ADAPTER_INFO)
 IP_ADAPTER_INFO._fields_ = [
 ("next", LP_IP_ADAPTER_INFO),
 ("comboIndex", c_ulong),
 ("adapterName", c_char * (MAX_ADAPTER_NAME_LENGTH + 4)),
 ("description", c_char * (MAX_ADAPTER_DESCRIPTION_LENGTH + 4)),
 ("addressLength", c_uint),
 ("address", c_ubyte * MAX_ADAPTER_ADDRESS_LENGTH),
 ("index", c_ulong),
 ("type", c_uint),
 ("dhcpEnabled", c_uint),
 ("currentIpAddress", LP_IP_ADDR_STRING),
 ("ipAddressList", IP_ADDR_STRING),
 ("gatewayList", IP_ADDR_STRING),
 ("dhcpServer", IP_ADDR_STRING),
 ("haveWins", c_uint),
 ("primaryWinsServer", IP_ADDR_STRING),
 ("secondaryWinsServer", IP_ADDR_STRING),
 ("leaseObtained", c_ulong),
 ("leaseExpires", c_ulong)]
 GetAdaptersInfo = windll.iphlpapi.GetAdaptersInfo
 GetAdaptersInfo.restype = c_ulong
 GetAdaptersInfo.argtypes = [LP_IP_ADAPTER_INFO, POINTER(c_ulong)]
 adapterList = (IP_ADAPTER_INFO * 10)()
 buflen = c_ulong(sizeof(adapterList))
 rc = GetAdaptersInfo(byref(adapterList[0]), byref(buflen))
 if rc == 0:
 for a in adapterList:
 adNode = a.ipAddressList
 while True:
 ipAddr = adNode.ipAddress
 if ipAddr:
  yield ipAddr
 adNode = adNode.next
 if not adNode:
  break

第三方库

https://github.com/ftao/python-ifcfg （本地下载）

import ifcfg
import json
 
for name, interface in ifcfg.interfaces().items():
 # do something with interface
 print interface['device']
 print interface['inet']
 print interface['inet6']
 print interface['netmask']
 print interface['broadcast']
 
default = ifcfg.default_interface()

总结

以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，如果有疑问大家可以留言交流，谢谢大家对的支持。

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