PythonNet

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title: Python网络编程 date: 2018-12-15 12:08:54 tags: categories: - Python

目录 start

1. 网络编程
   1. Socket
   2. WebSocket
   3. 邮件
   4. WebAPI
      1. JSON
   5. Web工具
2. 爬虫
   1. 安装所需模块

目录 end|2020-04-27 23:42|

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网络编程

Socket

作为网络编程的抽象概念，用于描述IP地址和端口，表示打开了一个网络连接，一个socket绑定到一个端口上 基于Socket的编程，需要知道目标计算机的IP地址，端口，以及协议类型

WebSocket

WebSockets

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邮件

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WebAPI

JSON

    # json response
    import requests
    import json

    def main():
        url = "https://xxxx.com/user/get"
        request = requests.get(url)
        re_dict = json.loads(request.text)
        for i in range(len(re_dict)):
            event = re_dict[i]
            print(event['project']['path'])

    # json request
    import http.client
    import json
    import time

    test_url = 'xxx.net'

    conn = http.client.HTTPSConnection(online)
    headers = {'Content-type': 'application/json',"Cookie":"JSESSIONID=c946645a-21d4-4c57-b061-26c3f4a1b8ce"}

    def request(id):
        foo = {
            "id": id,
            "pass": True
        }

        json_data = json.dumps(foo)
        conn.request('POST', '/submit', json_data, headers)
        response = conn.getresponse()
        print(response.read().decode())

Web工具

• pip install httpie

  • http --json URL 格式化输出json

• curl URL|python -m json.tool 格式化输出JSON

爬虫

安装所需模块

解析HTML

• bs4 ：sudo pip3 install bs4
• lxml :sudo pip3 install lxml