Learn reptiles, need to combine theory and practice, Python library plethora ecology of reptiles, urllib, urllib2, requests, beautifulsoup , scrapy, pyspider reptiles are related to the library, but if there is no theoretical knowledge, purely to learn how to how to use the API calls will not have upgrade. So, while learning these libraries, we need to learn the relevant principles of the crawler system.
You need to understand including but not limited to the Python programming language, HTTP protocol (TCP / IP protocol stack), database, Linux and other knowledge
Python Getting Started: "A Byte of Python"
HTTP entry: "graphic HTTP"
database entry: "MySQL must know will be"
Linux Getting Started: "Happy Linux command line"
regular entry: "Mastering Regular Expressions"
there is a special talk book crawler: "written in Python web crawler"
