It cant do enterprise, performance heavy, commercial stuff.

It can, I've been doing it for almost a decade. I've never noticed a lack of dev tools, and I'm not sure why .NET style project management is a prerequisite for creating enterprise applications. Obviously you can write more performant code in other languages, but I've found that 90% of the time, python's performance is good enough.

Agree on picking the right tool for the job though. Most of the time though, unless you're dealing with an extreme edge case (like writing embedded firmware for the space shuttle), that just means picking the language your team is most comfortable with.