代替/etc/hosts 当requests.get的时候使用指定的ip

hosts.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Author: Ficapy
# Create: '7/12/16'

import socket
import requests


def getitem(pos, seq):
    tmp = seq
    for i in pos:
        tmp = tmp.__getitem__(int(i))
    return tmp


def modify_tuple(seq, pos, value):
    if isinstance(seq, tuple):
        seq = list(seq)
        seq.append(True)
    else:
        seq.append(False)
    for index, i in enumerate(pos):
        command = ''.join(['[{}]'.format(x) for x in pos[:index + 1]])
        if index + 1 == len(pos):
            exec (''.join(['seq', command]) + '=' + 'value')
            break
        val = getitem(pos[:index + 1], seq)
        if isinstance(val, tuple):
            val = list(val)
            val.append(True)
        else:
            val.append(False)
        exec (''.join(['seq', command]) + '=' + 'val')

    for index, i in enumerate(pos[:-1]):
        command = ''.join(['[{}]'.format(x) for x in pos[:-index - 1]])
        val = getitem(pos[:-index - 1], seq)
        if val[-1]:
            val = tuple(val[:-1])
        else:
            val = val[:-1]
        exec (''.join(['seq', command]) + '=' + 'val')

    if seq[-1]:
        seq = tuple(seq[:-1])
    else:
        seq = seq[:-1]
    return seq


def hosts(func):
    def inner(*args):
        ret = func(*args)
        if 'live' in args[0]:
            ret = ret[0]
            ret = modify_tuple(ret, '40', '204.79.197.213')
            return [ret]
        return ret

    return inner


socket.getaddrinfo = hosts(socket.getaddrinfo)


requests.get(URL)