[azag0]

Concurrent or parallel? For concurrency, python has asyncio, which many people consider a success.

For parallel execution, there's the GIL, but in practice it rarely matters, because once you want to do parallel execution, you have most likely a computationally intensive task to do, at which point you call down to C or something, and then GIL doesn't matter.

[devxpy]

> most likely a computationally intensive task to do

Eh, let me stop you there. Everything isn't about performance.

Hardware and UI based things really benefit from parallelism.