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GeezerVison is showing github.com — Loading runtime in blender on macOS 15.1 causes `MissingMethodException` · Issue #2503 · pythonnet/pythonnet Closed DescriptionEnvironment
DetailsI am using pythonnet for a blender extension, and for the most part, it works great! However, recently a user reported that it does not run on their macOS system, which throws following error upon trying to load The error does not occur when attempting to do so using the python executable shipped with blender directly. Minimal Reproduction
(note: the crash occurs without script.pydef run(): try: import pythonnet except ModuleNotFoundError: import pip pip.main(["install", "pythonnet"]) try: import pythonnet except ModuleNotFoundError: print("Could not install python.net, please try running blender with admin rights or run a portable instance of blender in a directory with write access") return import pathlib runtime_config_path = pathlib.Path(__file__).parent / "runtimeconfig.json" pythonnet.load("coreclr", runtime_config=runtime_config_path) from System import Console Console.WriteLine("Pythonnet successfully loaded!") run() runtimeconfig.json{
"runtimeOptions": {
"tfm": "net8.0",
"framework": {
"name": "Microsoft.NETCore.App",
"version": "8.0.0"
},
"configProperties": {
"System.Reflection.Metadata.MetadataUpdater.IsSupported": false,
"System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization": false
}
}
}Console output / StacktraceFailed to initialize pythonnet: System.TypeInitializationException: The type initializer for 'Delegates' threw an exception. ---> Python.Runtime.BadPythonDllException: Runtime.PythonDLL was not set or does not point to a supported Python runtime DLL. See https://github.com/pythonnet/pythonnet#embedding-python-in-net ---> System.MissingMethodException: Failed to load symbol Py_Main: dlsym(RTLD_DEFAULT, Py_Main): symbol not found at Python.Runtime.Platform.PosixLoader.GetFunction(IntPtr dllHandle, String name) in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Native/LibraryLoader.cs:line 85 at Python.Runtime.Runtime.Delegates.GetFunctionByName(String functionName, IntPtr libraryHandle) in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Runtime.Delegates.cs:line 296 --- End of inner exception stack trace --- at Python.Runtime.Runtime.Delegates.GetFunctionByName(String functionName, IntPtr libraryHandle) in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Runtime.Delegates.cs:line 300 at Python.Runtime.Runtime.Delegates..cctor() in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Runtime.Delegates.cs:line 38 --- End of inner exception stack trace --- at Python.Runtime.Runtime.Delegates.get_PyGILState_Ensure() in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Runtime.Delegates.cs:line 319 at Python.Runtime.Runtime.PyGILState_Ensure() in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Runtime.cs:line 712 at Python.Runtime.PythonEngine.AcquireLock() in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/PythonEngine.cs:line 479 at Python.Runtime.Py.GILState..ctor() in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Py.cs:line 27 at Python.Runtime.Py.GIL() in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Py.cs:line 13 at Python.Runtime.Loader.Initialize(IntPtr data, Int32 size) in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Loader.cs:line 26 at Python.Runtime.Runtime.Delegates.get_PyGILState_Ensure() in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Runtime.Delegates.cs:line 319 at Python.Runtime.Runtime.PyGILState_Ensure() in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Runtime.cs:line 712 at Python.Runtime.PythonEngine.AcquireLock() in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/PythonEngine.cs:line 479 at Python.Runtime.Py.GILState..ctor() in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Py.cs:line 27 at Python.Runtime.Py.GIL() in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Py.cs:line 13 at Python.Runtime.Loader.Initialize(IntPtr data, Int32 size) in /home/benedikt/dev/pythonnet/dist/.tmpXppz4v/pythonnet-3.0.4/src/runtime/Loader.cs:line 26Traceback (most recent call last): File "/Users/user/Documents/Test/pythonnet_issue.py", line 22, in <module> run() File "/Users/user/Documents/Test/pythonnet_issue.py", line 17, in run pythonnet.load("coreclr", runtime_config=config) File "/Users/user/Library/Application Support/Blender/4.2/extensions/.local/lib/python3.11/site-packages/pythonnet/__init__.py", line 146, in load raise RuntimeError("Failed to initialize Python.Runtime.dll") RuntimeError: Failed to initialize Python.Runtime.dll Note: Activity
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