python [SSL: DH_KEY_TOO_SMALL] dh key too small 错误

requests、httpx出现错误
[SSL: DH_KEY_TOO_SMALL] dh key too small (_ssl.c:1010)
则将requests换成httpx库
然后设置如下代码即可解决上面错误问题

# -*- coding:utf-8 -*-

import httpx
import ssl


class HttpxTest:
    def __init__(self):
        self.user_agent = ('Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; SLCC2; '
                           '.NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; rv:11.0) like Gecko)')

        self.context = ssl.create_default_context()
        self.context.set_ciphers("ECDHE")

        self.url_params = {}
        headers = {
            'User-Agent': self.user_agent
        }

        self.url_params['headers'] = headers
        self.url_params['params'] = None

    def do_request(self, url, params, request_type):
        with httpx.Client(verify=self.context) as client:
            if request_type == 'POST':
                self.url_params['params'] = params
                response = client.post(url, **self.url_params)
            elif request_type == 'GET':
                response = client.get(url, **self.url_params)
            if response is not None:
                print(response.text)


if __name__ == '__main__':
    url = 'https://www.baidu.com'
    httpxTest = HttpxTest()
    httpxTest.do_request(url=url, params={}, request_type='GET')

如果上面 https:// 的请求提示错误信息
httpx.ConnectError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1010)
则需要在上面代码基础上加上

        self.context.check_hostname = False
        self.context.verify_mode = ssl.CERT_NONE

完整代码如下

# -*- coding:utf-8 -*-

import httpx
import ssl


class HttpxTest:
    def __init__(self):
        self.user_agent = ('Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; SLCC2; '
                           '.NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; rv:11.0) like Gecko)')

        self.context = ssl.create_default_context()
        self.context.check_hostname = False
        self.context.verify_mode = ssl.CERT_NONE
        self.context.set_ciphers("ECDHE")

        self.url_params = {}
        headers = {
            'User-Agent': self.user_agent
        }

        self.url_params['headers'] = headers
        self.url_params['params'] = None

    def do_request(self, url, params, request_type):
        with httpx.Client(verify=self.context) as client:
            if request_type == 'POST':
                self.url_params['params'] = params
                response = client.post(url, **self.url_params)
            elif request_type == 'GET':
                response = client.get(url, **self.url_params)
            if response is not None:
                print(response.text)


if __name__ == '__main__':
    url = 'https://www.baidu.com'
    httpxTest = HttpxTest()
    httpxTest.do_request(url=url, params={}, request_type='GET')

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