Environment

• Pythonnet version:3.0.3
• Python version:381
• Operating System:win11
• .NET Runtime:.NET8

Details

• In my .NET 8 console environment, I executed a simple operation to call a Python method that returns a string. However, I encountered an error when executing PythonEngine.Shutdown().

  TODO

• python&code：
  import json
  def return_json_string():
  data = {"message": "这是从Python返回的字符串"}
  return "{"name":"Michael"}" # 这将会是一个字符串

• .net&code
  public static void GetStr()
  {
  Runtime.PythonDLL = @"D:\Program Files\Python312\python312.dll"; // 根据需要更改Python版本和路径
  PythonEngine.Initialize(); // 初始化Python引擎

  using (Py.GIL()) // 确保我们在Python全局解释锁(GIL)的上下文中
  {
  dynamic pyModule = Py.Import("ReturnJson"); // 导入Python方法所在文件名
  string result = pyModule.return_json_string(); // 调用函数并获取返回值

  Console.WriteLine(result);
  

  }

  PythonEngine.Shutdown(); // 关闭Python引擎
  }

    System.NotSupportedException: BinaryFormatter serialization and deserialization are disabled within this application. See https://aka.ms/binaryformatter for more information.
   at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph)
   at Python.Runtime.RuntimeData.Stash()
   at Python.Runtime.Runtime.Shutdown()
   at Python.Runtime.PythonEngine.Shutdown()