Python still lets you get working code faster than anything else; it tends to be less maintainable in the long term / large codebases than something with a stronger compile-time type system, but with this kind of small bot you're likely to completely rewrite it as the API changes rather than wanting to maintain and add features to a codebase.
This has been my experience with python. When I was younger I wanted the fast out iteration times and speed of coding. Now that I work on a large python project I really miss having a compiler. Go offers a great tradeoff with fast iteration time and good speed of coding while scaling to large teams and codebases well. I actually find the iteration time faster than python because the tests run so much faster.
