PowerShell is "Python interactive done right". It's too bad it has a bad rap in open source community and it might never get the traction it really deserves. Sure it has it's downsides, which tech doesn't, but PowerShell has solved so many issues and annoyances with the shells that we've been used to, that it still comes out as the winner.

I've been using it since day one from 2006, every single day. It has come a long way and the current PS7 is the best shell experience there is. Hands down no contest.

Snover's passionate early presentation about the PS pipeline is a pretty cool tech video. https://www.youtube.com/watch?v=325kY2Umgw8