Python over JavaScript? (Facts, please)
Python’s a good second language to learn after JavaScript, as they have a reasonable number of similarities, e.g.

they’re both memory-managed
they have similar data structures — JavaScript’s objects and arrays are much like Python’s dictionaries and arrays
they’re both used quite a lot for web-related work — JavaScript in the browser and in server-side contexts like node.js, Python in web frameworks like Django.

However, Python’s object-oriented... stuff is quite different to JavaScript’s protoype-based object-oriented stuff.
If the only programming you do is manipulating web pages within the web browser, then Python won’t be of any direct use to you (only JavaScript runs in browsers at the moment). But learning another programming language generally gives you new ways to think about the languages you already know. Learning Python could help you write better JavaScript.
I recently learned JavaScript an all of the sudden I hear about Python...
Should I go learn Python or just stick with my basic JavaScript knowledge?
If you have some "facts" I would love to hear them! Like efficiency, difficultylevel and so on, an so on...
Thanks :)