Python Crawler---beautifulsoup (2)

Previously we were using Python's own parser, Html.parser. Official web side There are some other parsers, we learn from each other.

Parser	How to use	Advantages	Disadvantages
Htm.parser	BeautifulSoup (markup, ' Html.parser ')	1. Python comes with 2, the resolution speed is passable 3, fault-tolerant strong	2.7 Prior versions, and 3.3 not including 2.7 are not supported
lxml ' s HTML parser	BeautifulSoup (markup, ' lxml ')	1, very fast 2, fault-tolerant strong	To install the C language Library
lxml ' s XML parser	BeautifulSoup (markup,[' lxml ', ' xml ') BeautifulSoup (markup, ' XML ')	1. Fast speed 2. The only parser that supports XML	Need to install the C language Library
Html5lib	BeautifulSoup (markup, ' Html5lib ')	1. The strongest fault tolerance 2. Parsing documents in Browser mode 3. Generate HTML5 Format documents	1. Slow speed 2, do not rely on external expansion

That's all you got to know.

　　

Python Crawler---beautifulsoup (2)