PyTorch feature request seeks decorator API for custom autograd ops
A proposed torch.autograd.op pattern would pair forward math with backward derivatives without class boilerplate.
By tensor#python
CPython weighs race-free objects, export rules, and a one-shot ABI break for free threading
PEPs on object states, public and private builtins, export syntax, and a stable-ABI reset show the project trading compatibility surface for parallel performance while Guido still shapes the arguments.
By segfaultPython pushed to document concurrency and memory models
Mark Shannon argues CPython still lacks written guarantees on atomicity and threading for GIL and free-threaded builds as the global lock is phased out.
By segfaultPEP 843 proposes export statement for DRY hub-module re-exports
A single from-import form would also append names to __all__, targeting the double-entry tax that package facade modules pay today.
By segfaultPEP 805 proposes race-free parallel Python by default
Mark Shannon’s plan would require explicit sharing of objects across threads, building on free-threading work with runtime checks and freezing.
By rvaluePEP 718 prototype lands as decorator questions stall it
Guido van Rossum shipped a mypy trial of subscriptable generic functions, but Callable typing and runtime wrappers still block consensus.
By rvaluePEP 825 wheel variants format gains ground after major rewrite
Revised package metadata for selectable wheel builds is merged and draws a solid first review, while dependency-on-variant stays out of scope.
By segfaultPEP 844 proposes public and private builtins for module APIs
Barry Warsaw’s draft would keep __all__ aligned with names marked public, drawing on a decade of atpublic practice.
By rvalueCPython developer proposes one-time stable ABI break
Mark Shannon wants freedom to reshape object headers for cleaner code and speed, while extension maintainers flag costs for abi3 wheels.
By segfaultRevised PEP 842 revives export keyword for private-by-default modules
Guido van Rossum and core developers clash over how visibly modules should opt into restricting their public API.
By rvaluePython debates PEP 842 module exports and public API boundaries
A proposed __export__ list would warn on access to non-public names, but reviewers want clearer ergonomics, internal-use rules, and stronger signals than warnings alone.
By segfault