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Usage of deprecated Python functions slated for removal in Python 3.15 #2592

Description

@picnixz

Hi, I'm a CPython core developer and we are currently working on the next alpha, namely Python 3.15. In Python 3.15, we are removing a bunch of deprecated functions (see python/cpython#133661 and https://github.com/python/cpython/pull/133661/files#diff-bd7a9c5b54eeb2b40e6db5e48e8d79d309d8738e776a40918773c6840189edf9).

We found the following references in this project, but as I never coded in .NET, I don't know how to change them:

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();

Activity

  1. filmor commented on May 9, 2025

    @filmor
    Member

    The respective replacements are PyConfig_Get with the right parameters from Python 3.14 onwards, right? I can have a look into implementing these along with 3.14 support.

    Thank you very much for the heads up!

  2. picnixz commented on May 9, 2025

    @picnixz
    Author

    The respective replacements are PyConfig_Get with the right parameters from Python 3.14 onwards, right

    Yes indeed! don't forget to hold the GIL though. If there are issues, please open a ticket on python/cpython.

  3. added this to the 3.2.0 milestone on May 26, 2026
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