Python 3.15 ships: lazy imports, frozendict, and a faster experimental JIT
_jaydeepkarale · x · 2026-10-15
Python 3.15 (released Oct 9, 2026) adds explicit lazy imports to cut startup costs, a frozendict type, smarter error messages, UTF-8 by default, unpacking comprehensions, the Tachyon profiler, and continued work on an experimental JIT — plus a sentinel() for distinguishing missing args from explicit None.
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