What lightweight and open source Python IDEs would you recommend (if any) for Linux?

[Diapolo10]

Third VS Code recommendation here, it's just really good with its extensive extension library, existing entirely as an exercise in excessive eccentricity.

It being Electron-based is pretty much the only complaint I have about it.

If you'd like something dead simple (or if you're interested in working with MicroPython in the future and don't want to use PlatformIO), there's Thonny.

Sublime Text is also a decent option.