It was far easier for me to grok monads in Haskell (and it took less time), than to learn how to properly deploy a Python application. Given that monads are often a complaint and testament to the "complexity" of Haskell, I think it's unfair to make the claim that Python is uncomplicated. If you use a language for some period of time, it is very likely that you will have to deal with the tooling at some point.

I think the "it's" in "it's more complicated" refers to deploying software, not the language itself nor its support packages.