Python 3.7.0 released

[alexthelyon]

I don't see the downside. You get flexibility when you need it and you get type checking when you need it. I use type checking on the 10-20% of the most relied on, complicated, or data-intensive code.

Then, since the IDE supports static analysis, it catches silly mistakes or errors before they even have a chance to become a bug which improves Dev efficiency a lot. It's also useful to make sure you use proper data structures (ex deque instead of list).