CSS selectors

I'm a web developer and designer turned into a web scraper. Python is easy and I love it. Scrapy is wonderful. But XPath... it's a foreign language that mostly does what CSS selectors do — but those are second language to me. Anyone coming from jQuery or CSS will already be used to CSS selectors.

So I decided to improve scrapy to support CSS selectors, using the cssselect package that got extracted from the lxml package. I've created two Selector classes, HtmlCSSSelector and XmlCSSSelector, that basically translate the CSS selectors into XPath selectors and run the parent class select method. Easy Peasy.

I'm looking into how to provide tests for these new classes, but would love some guidance. This is my first contribution to a Python package.