Adopt a consistent POSIX layout

Feature or enhancement

Proposal:

Currently, the Python installation directory for stdlib/platstdlib and purelib/platlib is defined as {implementation_lower}{py_version_short}{abi_thread}, and for include/platinclude as {implementation_lower}{py_version_short}{abiflags}.

I would like to make it consistent with {implementation_lower}{py_version_short}{abiflags}.

Currently, I believe this will mostly affect debug builds, which will receive their own separate directory.

Has this already been discussed elsewhere?

No response given

Links to previous discussion of this feature:

In https://github.com/python/cpython/issues/121103, we added {abi_thread}.
In https://github.com/python/cpython/issues/127294, we discuss some of the impact of mixed installations.

先查看 issues 121103 和 127294 中的討論，然後追蹤 stdlib、platstdlib、purelib、platlib、include 和 platinclude 的安裝路徑是如何定義的。檢查對 debug 安裝和混合安裝的影響；完成的標準是受影響的路徑一致使用 {implementation_lower}{py_version_short}{abiflags}，且不破壞這些情況。