What is the use of aiohttp in python crawlers

This article mainly introduces the use of aiohttp in the python crawler, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

Description

1. Aiohttp is a database that provides asynchronous Web services.

Starting from the Python3.5 version, the keyword async/await is added to Python to make callback writing more intuitive and humanized.

2. With the help of the writing of the async/await keyword, the asynchronous operation of aiohttp becomes more concise and the structure is clearer.

Efficiency is greatly improved when using asynchronous request libraries to capture data.

Pip installation

Pip installation is recommended. The command is as follows:

Pip3 install aiohttp

In addition, the official recommendation is to install the following two libraries: one is the character encoding detection library cchardet, and the other is the parsing library aiodns that accelerates DNS. The installation commands are as follows:

Pip3 install cchardet aiodns thank you for reading this article carefully. I hope the article "what is the use of aiohttp in python crawler" shared by the editor will be helpful to you. At the same time, I also hope you will support us and follow the industry information channel. More related knowledge is waiting for you to learn!