Dave Rosenthal

This is one of the primary reasons why Python's reputation is being serviceable in terms of speed, but for certain workloads, certain things, it's too slow, right? Because of the GIL. This is one of the reasons why people will say, eh, I might pick something else because of the GIL. Fair or not fair?

This is one of the primary reasons why Python's reputation is being serviceable in terms of speed, but for certain workloads, certain things, it's too slow, right? Because of the GIL. This is one of the reasons why people will say, eh, I might pick something else because of the GIL. Fair or not fair?

So if you have slower single-threaded performance, you have loss of features in terms of it being more complexity, potentially, because your loss of a single lock, now you need fine-grained locks and all kinds of other things you can do, which is problematic. And a huge lift by many developers over how long you guys have been working on this?

So if you have slower single-threaded performance, you have loss of features in terms of it being more complexity, potentially, because your loss of a single lock, now you need fine-grained locks and all kinds of other things you can do, which is problematic. And a huge lift by many developers over how long you guys have been working on this?

Many years in the making. Yes. Okay, add all those together. Worth it? Well, we'll see.

Many years in the making. Yes. Okay, add all those together. Worth it? Well, we'll see.

Somebody will build it.

Somebody will build it.

It's not like a flag that you give when you run Python. It's a separate executable.

It's not like a flag that you give when you run Python. It's a separate executable.

Right. And it's out there in Release Canada. It's probably out there as we speak, at least in the official 3.13 experimental, as you guys pointed out. Are there early indicators? Are there people who have been just pining for this and they've already tried it in the RC and are saying, wow, we're seeing this or...

Right. And it's out there in Release Canada. It's probably out there as we speak, at least in the official 3.13 experimental, as you guys pointed out. Are there early indicators? Are there people who have been just pining for this and they've already tried it in the RC and are saying, wow, we're seeing this or...

So for your average programmer out there with their average Python app, whether it be a web app or a desktop app or whatever, should they be hopping on this experimental and giving it a try? Or is it a thing where it's like, if you don't know that your code is thread safe, it's probably not? Or is it the other way around? What's the water feel like? Is it warm? Are there alligators in there?

So for your average programmer out there with their average Python app, whether it be a web app or a desktop app or whatever, should they be hopping on this experimental and giving it a try? Or is it a thing where it's like, if you don't know that your code is thread safe, it's probably not? Or is it the other way around? What's the water feel like? Is it warm? Are there alligators in there?

That makes a lot of sense. Somebody should start a list of libraries which have taken that initiative.

That makes a lot of sense. Somebody should start a list of libraries which have taken that initiative.

Very cool. Well, it's definitely exciting times. I'm even excited. I don't use Python on the regular, but I think that's early indicators of something that's potentially a huge success. So congrats to you guys and the whole team for the effort, at least, to

Very cool. Well, it's definitely exciting times. I'm even excited. I don't use Python on the regular, but I think that's early indicators of something that's potentially a huge success. So congrats to you guys and the whole team for the effort, at least, to

make it no longer theoretical and make it an actual piece of software, bleeding edge piece of software that's going to produce even some papers. Should we move on to the JIT? Lucas, you mentioned the JIT is another feature of 3.13. Is there more to say about the GIL? I'm assuming these things will probably interact as topics.

make it no longer theoretical and make it an actual piece of software, bleeding edge piece of software that's going to produce even some papers. Should we move on to the JIT? Lucas, you mentioned the JIT is another feature of 3.13. Is there more to say about the GIL? I'm assuming these things will probably interact as topics.