Hi Viktoria, As you know, I am working on fixes for these Domain Unload / Reload crashes. I opened an issue against the public repo for the first crash (on second init) here:
https://github.com/pythonnet/pythonnet/issues/714 I will do the same for the second crash (on second domain unload) when the fix is approved in our own fork Cheers! David On Mon, Jul 30, 2018 at 1:02 PM, Viktoria Kovecses < viktoria.kovec...@imaginary-spaces.com> wrote: > Hello, > > We are experiencing crashes when running Python.Net in the Unity 2018.2 > game engine. Specifically, after modifying a C# script in Unity, an > automatic reload is triggered which results in a crash in Py_Finalize. > > Here are the repro steps: > 0. Make sure to call PythonEngine.Shutdown on domain unload (otherwise it > crashes earlier). > 1. Create a Unity project and add the compiled Python.Net files (clr.pyd > and Python.Runtime.dll) to the Assets folder > 2. In Unity Player Settings (Edit > Project Settings > Player), under > "Other Settings", make sure "Api Compatibility Level" is set to ".NET 4.x", > and "Scripting Runtime Version" is set to ".NET 4.x Equivalent" > 3. In Assets, create the following C# script (HelloWorld.cs): > > ``` > using UnityEditor; > using UnityEngine; > using Python.Runtime; > > class HelloWorld > { > [MenuItem("Python/Hello")] > public static void CallHello() > { > using (Py.GIL()) > { > string script = "import clr\n" + > "clr.AddReference('UnityEngine.dll')\n" + > "import UnityEngine\n" + > "UnityEngine.Debug.Log('hello world!')\n"; > > PythonEngine.Exec(script); > } > } > } > ``` > > 4. Run the script by selecting Python > Hello from the top menu > --> This will log "hello world!" to the Unity console > > 5. Modify HelloWorld.cs script: change Hello to Hello 1 and trigger hot > reloading of assemblies > 6. run Python > Hello 1 > --> Logs in the console > > 7. Modify HelloWorld.cs script: change Hello 1 to Hello 2: > --> crash in dict_traverse (garbage collection during Py_Finalize). > > Does anyone know what could be causing the crash and/or how to fix it? > > Any help is appreciated. > > Thank you, > Viktoria > > _________________________________________________ > Python.NET mailing list - PythonDotNet@python.org > https://mail.python.org/mailman/listinfo/pythondotnet > >
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