Shulou(Shulou.com)06/02 Report--

This article mainly introduces "what is the composition of Python crawler architecture". In daily operation, I believe many people have doubts about the composition of Python crawler architecture. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts about "what is the composition of Python crawler architecture?" Next, please follow the editor to study!

What is a Python crawler?

Reptiles are called web crawlers, which can be understood as spiders crawling on the web. The Internet is a huge network. Reptiles are reptiles walking on the web. When they encounter their favorite food, they will grab down and grab network resources.

So is it difficult to learn Python crawlers?

Python itself is a relatively simple programming language, suitable for zero basic personnel, more suitable for beginners, low threshold and powerful function. In fact, Python crawler is a relatively simple course inside, and it is not very difficult to learn. To put it simply, as long as the data you can see on the network can be crawled, most crawlers are achieved by sending requests-getting pages-parsing pages-extracting and storing content. In fact, they are used to obtain web page information.

Composition of Python crawler architecture

1. URL manager: manages the url collection to be crawled and the crawled url collection, and transmits the url to be crawled to the web downloader

two。 Web page downloader: crawl the web page corresponding to url, store it as a string, and send it to the web page parser

3. Web page parser: parses valuable data, stores it, and complements url to URL manager.

At this point, the study on "what is the composition of the Python crawler architecture" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.