Python 3.14 introduces language and standard-library mechanisms that reduce syntactic overhead and add expressiveness without changing core execution semantics: exception-group catch syntax relaxing tuple-parenthesization requirements, a native Zstandard compression codec joining the language's data-compression facilities, a template-string type that separates string interpolation into an inspectable object rather than immediate string production, and deferred evaluation of type annotations by default. These fall within the domain of programming-language design and the CPython language specification, specifically the subfields of syntax evolution, standard-library data compression, string/template interpolation semantics, and static type-annotation handling.
Python 3.14 introduces language and standard-library mechanisms that reduce syntactic overhead and add expressiveness without changing core execution semantics: exception-group catch syntax relaxing …