Hey, we all have our own opinions and preferences. :) Python is definitely one of the best general programming languages, it's just not for me. If you ever look into Lisp, make sure you learn a dialect and not Common Lisp. Also, the syntax will look completely alien to someone with experience only in Python and JavaScript. What kind of applications are you looking to develop?
Cool, I'll have to look into Sencha more, I was considering using PhoneGap but this looks really nice! I have used PHP and Perl mostly, with predominantly web programming in jQuery, Coffeescript, or vanilla JS. Recently went back and took a class in C to get some fundamentals, and worked through some tutorials in Ruby but nothing in depth. For a while I was researching node.js for my current project but I ended up switching to Python with Flask at the last minute because I was running into a ton of issues with the automated node build tools and dependency hell. I'd still like to try node again for an api but so far Flask is working really nicely.