Python Reptile learning is hard? As we all know, is the most easy to use Python programming language, if you have some basis, then it is very easy to learn Python, but Python for zero-based staff to learn, is the first choice for beginners. The reptile is a major application areas of Python, Python is now high market demand reptiles engineer, attracted many learners, it is hard to learn Python reptiles? What is Python reptile?
What is Python reptile it?
There reptile called a web crawler, can be understood as a spider crawling on the network, the Internet is a huge network, reptile is walking on the Web crawler, meet their favorite foods, will crawl down, crawl the web resources.
It is hard to learn Python reptiles?
On Python itself is a relatively simple programming language, suitable for zero-based personnel, more suitable for beginners to learn, low barriers to entry, powerful; it is from the actual situation, which is relatively simple Python reptile of course, is not very steep learning curve and simple, as long as can be seen on the network data can all be crawling, most reptiles are by sending a request - get the page - page parsing - extracting and storing content to achieve, is in fact used to obtain information pages.
Python Reptile architecture consisting of
1. URL Manager: url collection and management to be crawled crawling url been set, to be transmitted to a web crawling url downloading;
2. downloading pages: web crawling corresponding to url, stored as a string, to the web page parser;
3. Web page parser: parse out the valuable data stored, adding that url to URL Manager.