1、环境安装
python3.8

安装web.py
安装libxml2, libxslt, lxml python
安装libxml2参考
https://www.cnblogs.com/lizm166/p/8099245.html
https://www.cnblogs.com/marvelousone/p/12185582.html


pip install web.py lxml virtualenv

2、测试脚本

参考
https://developers.weixin.qq.com/doc/offiaccount/Getting_Started/Getting_Started_Guide.html
https://blog.csdn.net/HemingwayM/article/details/100019070

# -*- coding:utf-8 -*-
#!/usr/bin/env python3

import web

urls = (
    '/wx', 'Handle',
)

class Handle(object):
    def GET(self):
        return "hello, this is handle view"

if __name__ == '__main__':
    app = web.application(urls, globals())
    app.run()

运行代码：8081端口（注意云服务器的防火墙要放行8081端口）
 sudo python main.py 8081

在浏览器输入http://外网IP/wx

token验证

参考
https://www.cnblogs.com/milesma/p/12075263.html

# -*- coding: utf-8 -*-
#!/usr/bin/env python3
#filename main.py
import web
from handle import Handle

urls = (
    '/wx', 'Handle',
)

if __name__ == '__main__':
    app = web.application(urls, globals())
    app.run()

# -*- coding: utf-8 -*-
#!/usr/bin/env python3
#filename handle.py
import hashlib
import web


class Handle(object):

    def POST(self):
        pass

    # get方法，验证token
    def GET(self):
        try:
            data = web.input()
            if len(data) == 0:
                return "token success!"
            signature = data.signature
            timestamp = data.timestamp
            nonce = data.nonce
            echostr = data.echostr
            token = "hello2020"  # 请按照公众平台官网\基本配置中信息填写,两个token保持一致

            list = [token, timestamp, nonce]
            list.sort()
            sha1 = hashlib.sha1()
            sha1.update(list[0].encode("utf-8"))
            sha1.update(list[1].encode("utf-8"))
            sha1.update(list[2].encode("utf-8"))
            hashcode = sha1.hexdigest()  # 获取加密串

            # 验证
            print("handle/GET func: hashcode, signature: ", hashcode, signature)
            if hashcode == signature:
                return echostr
            else:
                return ""

        except Exception as Argument:
            return Argument

重新启动成功后（python main.py 80），点击提交按钮。若提示”token验证失败”, 请认真检查代码或网络链接等。若token验证成功，会自动返回基本配置的主页面，点击启动按钮