Optimal Scraping Technique: CSS Selector, XPath, & RegEx - DataScienceCentral.com

In nearly all cases, what is required is a small sample from a very large file (e.g. Therefore, an essential part of scraping is searching through an HTML document and finding the correct information. How that should be done is the matter of some debate, preferences, experience, and types of data. While all scraping and parsing methods are "correct", some of them have benefits that may be vital when more optimization is required. Some methods may be easier for specific types of data.