I've used rails for years, and have used old versions of django at one company, and used python extensively for non-web purposes.

I think my take is that there's no middle-ground between Rails and some of the newer Java-based frameworks.

Either I'm doing a side project or startup, and I need to go as FAST as possible, type systems and similar be damned, or I'm OK with not going as fast as possible and we're going to go slower but deliver something very solid.

Python/django still had me spending a bunch of time on stuff that rails will either generate, scaffold, or hide from you completely. While still not being nearly as safe or performant as anything in the Java world. Note I'm mostly thinking about more modern frameworks like Javalin, not necessarily Spring's entire ecosystem/way-of-life.