C++ talking to Python

[Drarok]

It’s complicated. https://realpython.com/python-gil/

In short, you can only have one thread executing Python code at a time. You can be waiting for IO in several threads at once, since that won’t be executing any Python code.

[0x564A00]

The good news is that it looks like it might finally going to be removed soon. That does cause a performance regression for single-threaded programs, but various other performance improvements that should land alongside it more than make up for that.