This time we're hosting a special guest: Carl Meyer from Meta. What is Cinder, how does it work, and how does it intersect with the future of Python 3? Find out in today's episode. 100% serious stuff! # Timestamps (00:00:00)  INTRO (00:00:53)  Carl Meyer's war story (00:02:27)  CINDER (00:03:22)  Static Python makes things significantly faster (00:08:15)  Cinder JIT and how it's tuned for Instagram (00:11:57)  Strict Python and the joy of import side effects (00:16:35)  The static typing controversy (00:18:52)  Upstreaming changes from Cinder? (00:22:53)  PEP 709: Comprehension inlining (00:28:35)  pip install CinderX (00:31:19)  Immortal instances (00:35:15)  asyncio.eager_task_factory() (00:39:39)  Carl's pet peeve with Python (00:44:49)  PR OF THE WEEK: PyPy's REPL in CPython (00:52:07)  WHAT'S GOING ON IN CPYTHON (00:52:22)  Python 3.12.1 (00:53:17)  Python 3.11.7 (00:54:45)  multiprocessing.SharedMemory track (00:56:49)  Fine-grained error locations for multi-line expressions (01:00:03)  libedit tab completion is fixed (01:02:14)  Colored exception tracebacks (01:05:11)  Removing testing modules from sys.modules, correctly (01:06:47)  SBOMs are a very serious matter (01:09:08)  Arrays by value on ARM (01:12:24)  Remove development environments and CAPS LOCK (01:15:30)  Interpreter cases generator refactored (01:16:17)  Free-threading news (01:20:01)  OUTRO