What to learn when getting started with Python crawler

Getting started with python crawlers The first thing to learn is html, which allows us to understand the structure of the web page and the overall layout of the web page; the second is to understand the principles of python crawlers and have a basic understanding of crawlers; the last is to use python crawlers Apply theoretical knowledge to practical situations.

The operating environment of this article: Windows 7 system, Dell G3 computer, python3.6.4.

Nowadays, python can be said to be relatively popular. Many people want to learn the language python, but they don’t know what to learn to get started. Let’s talk about what to learn to get started with python crawlers?

What is a crawler?

Crawlers are also called web spiders, web robots, and ants. The main function of the crawler is to retrieve valuable content from the website and place it where you want. Where necessary, these are what the crawler needs to do.

What should I learn to get started with python crawler?

As the saying goes, if you want to attack something first, you must sharpen your weapon first. Before learning crawlers, you must first have a certain understanding of crawlers. Learning crawlers is relatively easy.

The first thing we need to learn when learning crawlers is html. HTML allows us to understand the structure of the web page and the overall layout of the web page. Only when we understand the structure of the web page can the crawler crawl the parts we want.

The second thing to learn is python crawlers, understand the principles of python crawlers, and have practical development of python crawlers. Only in practical development can we truly learn knowledge.

The last thing to learn is the HTTP transmission protocol and the principles of sending requests and receiving on the network. Only by mastering these can you understand the logical thinking in the crawler.

The above is a detailed explanation of what to learn about python crawler. If you want to know more aboutPython video tutorial, please pay attention to the php Chinese website.

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