gh-133644: remove deprecated Python initialization getter functions

[picnixz]

For now, I'm only removing the getters. The setters will be removed in a separate PR (it's a bit tricky to remove them in this PR as PyConfig_Get requires the GIL to be held)

• Issue: Remove deprecated C API objects slated for removal in 3.15 #133644

---

📚 Documentation preview 📚: https://cpython-previews--133661.org.readthedocs.build/

[vstinner]

The 2 following projects refer to these removed getter functions:

• Nuitka (2.6)
• pythonnet (3.0.5)

Nuitka-2.6.tar.gz: Nuitka-2.6/nuitka/build/static_src/MainProgram.c: // NUITKA_PRINTF_TRACE("Final Py_GetPath is '%ls'.\n", Py_GetPath());
Nuitka-2.6.tar.gz: Nuitka-2.6/nuitka/build/static_src/MainProgram.c: Py_GetPath();
pythonnet-3.0.5.tar.gz: pythonnet-3.0.5/src/runtime/Native/CustomMarshaler.cs: /// Ex. Py_GetPythonHome
pythonnet-3.0.5.tar.gz: pythonnet-3.0.5/src/runtime/PythonEngine.cs: IntPtr p = Runtime.TryUsingDll(() => Runtime.Py_GetProgramName());
pythonnet-3.0.5.tar.gz: pythonnet-3.0.5/src/runtime/PythonEngine.cs: IntPtr p = Runtime.TryUsingDll(() => Runtime.Py_GetPythonHome());
pythonnet-3.0.5.tar.gz: pythonnet-3.0.5/src/runtime/PythonEngine.cs: IntPtr p = Runtime.TryUsingDll(() => Runtime.Py_GetPath());
pythonnet-3.0.5.tar.gz: pythonnet-3.0.5/src/runtime/Runtime.Delegates.cs: Py_GetProgramName = (delegate* unmanaged[Cdecl]<IntPtr>)GetFunctionByName(nameof(Py_GetProgramName), GetUnmanagedDll(_PythonDll));
pythonnet-3.0.5.tar.gz: pythonnet-3.0.5/src/runtime/Runtime.Delegates.cs: Py_GetPythonHome = (delegate* unmanaged[Cdecl]<IntPtr>)GetFunctionByName(nameof(Py_GetPythonHome), GetUnmanagedDll(_PythonDll));
pythonnet-3.0.5.tar.gz: pythonnet-3.0.5/src/runtime/Runtime.Delegates.cs: Py_GetPath = (delegate* unmanaged[Cdecl]<IntPtr>)GetFunctionByName(nameof(Py_GetPath), GetUnmanagedDll(_PythonDll));
pythonnet-3.0.5.tar.gz: pythonnet-3.0.5/src/runtime/Runtime.Delegates.cs: internal static delegate* unmanaged[Cdecl]<IntPtr> Py_GetProgramName { get; }
pythonnet-3.0.5.tar.gz: pythonnet-3.0.5/src/runtime/Runtime.Delegates.cs: internal static delegate* unmanaged[Cdecl]<IntPtr> Py_GetPythonHome { get; }
pythonnet-3.0.5.tar.gz: pythonnet-3.0.5/src/runtime/Runtime.Delegates.cs: internal static delegate* unmanaged[Cdecl]<IntPtr> Py_GetPath { get; }
pythonnet-3.0.5.tar.gz: pythonnet-3.0.5/src/runtime/Runtime.cs: internal static IntPtr Py_GetProgramName() => Delegates.Py_GetProgramName();
pythonnet-3.0.5.tar.gz: pythonnet-3.0.5/src/runtime/Runtime.cs: internal static IntPtr Py_GetPythonHome() => Delegates.Py_GetPythonHome();
pythonnet-3.0.5.tar.gz: pythonnet-3.0.5/src/runtime/Runtime.cs: internal static IntPtr Py_GetPath() => Delegates.Py_GetPath();

[vstinner]

LGTM

[picnixz]

The 2 following projects refer to these removed getter functions:

Should we actually open issues out there? (I can do it)

[vstinner]

Should we actually open issues out there? (I can do it)

You can open an issue in the upstream projects:

• https://github.com/Nuitka/Nuitka
• https://github.com/pythonnet/pythonnet

Or even propose a fix :-)

[vstinner]

The CI was sick on this PR, so I tried to close/reopen the issue to repair the CI.

[picnixz]

Or even propose a fix :-)

Let's do that :) (just finishing up my reviews elsewhere)

[picnixz]

Oh, for Nuitka the usage is fine (https://github.com/Nuitka/Nuitka/blob/4feeaf96be22b38993b7872f4e2df816fd206c27/nuitka/build/static_src/MainProgram.c#L194-L198):

#elif PYTHON_VERSION < 0x370
PySys_SetPath(getBinaryDirectoryWideChars(true));
Py_SetPath(getBinaryDirectoryWideChars(true));
// NUITKA_PRINTF_TRACE("Final Py_GetPath is '%ls'.\n", Py_GetPath());#endif

It's only being used in Python 3.7 and before (well, they are directly accessing the structure members otherwise...).

[vstinner]

_NUITKA_EXPERIMENTAL_DUMP_PY_PATH_CONFIG can be updated to use PyConfig_Get() and PySys_FormatStdout().

[vstinner]

Merged, thank you.