Typos

Pylauncher formula

Unify Python's cellar logic usage

Add fallback for new Homebrew schema

Needs to specify directory instead

Name, repo update with requirementslib 1.x

Sort to make sure we're getting the newest Python

Need requirementslib

Add caveats

Cleaner installation and friendly messages

What if we don't mkdir

I can't Ruby

Arguably more robust way to find Homebrew Python?

More idiomatic file-writing

Name tweak