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Newest Python PEPs	2026年08月18日 03時43分
Newest Python Enhancement Proposals (PEPs): Information on new language features and some meta-information like release procedure and schedules.

PEP 844: ``public`` and ``private`` builtins
This PEP proposes adding two new builtin functions, public() and private(), which document the public interface of a module by keeping its __all__ synchronized with the names actually defined to be pu...

PEP 842: Module Exports
This PEP proposes an export statement that modules can use to express intent about the visibility of variables from outside the module.

PEP 841: Adding Frozen Syntax to Optimize Immutable Types
This PEP proposes frozen display syntax: f{1, 2, 3} evaluates to a frozenset, and f{'a': 1} evaluates to a frozendict. Because immutability is guaranteed by the syntax itself rather than inferred from...

PEP 840: Name Resolution in Class Namespaces
There is a long-standing inconsistency in the way variable names are resolved in classes. Several alternatives to resolve this inconsistency are discussed.

PEP 839: PyFrozenSetWriter and PyFrozenDictWriter C API
Add two builder (“writer”) C APIs, PyFrozenSetWriter and PyFrozenDictWriter, following the design of PyBytesWriter (PEP 782). A writer collects items internally; *_Finish() produces the immutable o...

PEP 838: Adding python-version to pyvenv.cfg
This PEP proposes adding a python-version field to pyvenv.cfg which records the Python interpreter used by a virtual environment. It records only the major and minor version to be resilient to patch v...