Simon Willison moves his projects to Python 3.15 and drops Python 3.10

Simon Willison says Python 3.15 is now available and that he is dropping Python 3.10 support in his open source projects, which lets him use features from Python 3.11.

He highlights explicit lazy imports from PEP 810, unpacking in comprehensions from PEP 798, and the new sampling profiler, and reports that 3.15 is mostly no faster than 3.14 except for the experimental JIT, which gave a 1.2x boost on a Fibonacci test.