A bit of a tangent, but if you use a Mac, I've found that Dash is really great for getting things done without internet access. It's main purpose is to pull in

A bit of a tangent, but if you use a Mac, I've found that Dash is really great for getting things done without internet access. It's main purpose is to pull in local copies of docsets and search those, but it can also pull in sections of stack overflow (such as all Python questions, or all Pandas questions), and it integrates with things like Alfred, so you can do scoped searches without any GUI interaction.