So in another toot I said I hate Python, and let me substantiate that:
1) Language is too rigid, community dogmatic, and extensions are haphazard.
E.g. we can't get a postfix if statement because Zen of Python, but we can create a silly @ operator just to accomodate numpy's x.dot(y) (which is better than x @ y to begin with, given @ is already in use in a totally unrelated syntax), or we can get it in the specific context of list comprehension.
I love Haskell but two things make it a no-go for me: it's packaging / build stuff is slow and hard to get right, and it's hard to do interactive programming / debugging. Esp. when you're not familiar enough to not need much trial and error.
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko