it is a horribly slow, ugly language, with the most braindead scoping rules (apart from js, of course). The only fast parts of it are libraries written in other languages, because python itself is not up to the task for anything more than glueing code from other, better languages together.
Honestly JS seams saner then python, it's wierd but rather sane. The only really bad parts of JS are the type coercing == and =! operators which are very broken
For example "" == 0 and 0 == "0" are both true, but "0" == "" is false.
this is an unpopular opinion of mine, but I think lua is, in turn, a saner version of js. Apart from the 1-based indexing (which really isn't that big a deal imo). But I really love the stackful coroutines.