This PEP proposes standardizing the format of error responses returned by the simple repository API.

   This PEP proposes adding two new builtin functions, public() and private(), which document the public interface of a module by keeping its all...

   Large libraries separate their implementation layout (the tree of modules convenient for maintainers) from their public layout (the shallower,...

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

   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...

   There is a long-standing inconsistency in the way variable names are resolved in classes. Several alternatives to resolve this inconsistency are...

   Add two builder ( writer ) C APIs, PyFrozenSetWriter and PyFrozenDictWriter, following the design of PyBytesWriter (PEP 782). A writer collects items...

   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...

   This PEP adds an extension mechanism to the json encoder consisting of three complementary parts, one per level of customization:

   The experimental Just-in-Time (JIT) compiler has been part of CPython’s main branch since Python 3.13. PEP 744 described part of its initial design...