September 2018
Intermediate to advanced
398 pages
11h 32m
English
Content preview from Python Automation Cookbook
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How it works...
The first step is to download the page. Then, the raw text can be parsed, as in step 3. The resulting page object contains the parsed information.
The html.parser parser is the default one, but for specific operations it can have problems. For example, for big pages it can be slow, or has issue rendering highly dynamic web pages. You can use other parsers, such as, lxml, which is much faster, or html5lib, which will be closer to how a browser operates, including dynamic changes produced by HTML5. They are external modules that will need to be added to the requirements.txt file.
BeautifulSoup allows us to search for HTML elements. It can search for the first one with .find() or return a list with .find_all(). In step 5, it ...
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