使用Python requests库遇[Errno 11001] getaddrinfo failed错误求助

• 已安装requests库，按照官方快速入门文档示例执行请求，替换URL为https://www.google.com后仍报错
• 当前处于代理网络环境
• 错误详情：

>>> import requests 
>>> r = requests.get('https://api.github.com/events')
Traceback (most recent call last):
  File "C:\User\venv\lib\site-packages\urllib3\connection.py", line 203, in _new_conn
    sock = connection.create_connection(
  File "C:\User\venv\lib\site-packages\urllib3\util\connection.py", line 60, in create_connection
    for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
  File "C:\Program Files\Python39\lib\socket.py", line 954, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 11001] getaddrinfo failed

这个错误是代理环境下requests未配置代理导致DNS解析失败，以下是几种可行解决方式：

1. 请求时直接指定代理 #

在get方法中传入proxies参数，替换为你的代理地址和端口：

import requests

proxies = {
    'http': 'http://your-proxy-address:port',
    'https': 'http://your-proxy-address:port',
}

r = requests.get('https://api.github.com/events', proxies=proxies)

若代理需用户名密码，格式如下：

proxies = {
    'http': 'http://username:password@your-proxy-address:port',
    'https': 'http://username:password@your-proxy-address:port',
}

2. 配置系统环境变量 #

设置HTTP_PROXY和HTTPS_PROXY环境变量，requests会自动读取：

• Windows命令行执行：

set HTTP_PROXY=http://your-proxy-address:port
set HTTPS_PROXY=http://your-proxy-address:port

需用户名密码时：

set HTTP_PROXY=http://username:password@your-proxy-address:port
set HTTPS_PROXY=http://username:password@your-proxy-address:port

设置完成后重启Python环境即可生效。

3. 创建Session持久化代理 #

如果需要多次请求复用代理，可创建Session对象并配置：

import requests

session = requests.Session()
session.proxies = {
    'http': 'http://your-proxy-address:port',
    'https': 'http://your-proxy-address:port',
}

r = session.get('https://api.github.com/events')

内容的提问来源于stack exchange，提问作者IceTea