Python 3.15 released: Lazy imports, UTF-8 and new data types

Python 3.15 is expected to speed up some programs and simplifies handling immutable data. UTF-8 as standard requires testing.
LWN.net

Altering Python attribute handling for modules

The import statement for mpmath is incorrect, as noted, but it is a common mistake because of the way NumPy is usually (correctly) imported. The programmer thought they were setting the dps (decimal ...

Identifying standard library APIs removed in Python 3.15 from your code using AST—502 ...

Python 3.15.0 was released on October 9, 2026. The "Removed" section of the official "What's New in Python 3.15" document ...
BetaNews

Python 3.15 arrives with lazy imports, UTF-8 by default and a faster JIT

Python 3.15 is out with explicit lazy imports, UTF-8 as the default encoding, frozendict and sentinel types, the Tachyon ...