C#使用pythonnet调用python代码过程

版本对应关系

pythonnet 版本3.0.1，python版本3.8.

1. 如果使用python3.10，会出现报错python310.dll. ---> System.ComponentModel.Win32Exception: 找不到指定的模块

2. Net程序使用64位，如果使用anyCPU或者32位，会出现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”

使用流程

1.  
    
2.  
   string dllPath = @"C:\Program Files\Python38\python38.dll";
3.  
   string pythonHomePath = @"C:\Program Files\Python38";
4.  
    
5.  
   // 对应python内的重要路径
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   string[] py_paths = {"DLLs", "lib", "lib\\site-packages", "lib\\site-packages\\win32"
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   , "lib\\site-packages\\win32/lib", "lib\\site-packages\\Pythonwin" };
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   string pySearchPath = $"{pythonHomePath};";
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   foreach (string p in py_paths)
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    {
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    pySearchPath = $"{pythonHomePath}\\{p};";
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    }
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14.  
    // 此处解决BadPythonDllException报错
15.  
    Runtime.PythonDLL = dllPath;
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    Environment.SetEnvironmentVariable("PYTHONNET_PYDLL", dllPath);
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    // 配置python环境搜索路径解决PythonEngine.Initialize() 崩溃
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    PythonEngine.PythonHome = pythonHomePath;
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    PythonEngine.PythonPath = pySearchPath;
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21.  
    PythonEngine.Initialize();
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23.  
     
24.  
    string position = "";
25.  
    using (Py.GIL())
26.  
    {
27.  
    string code = File.ReadAllText(@"E:\main.py");
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    var scriptCompiled = PythonEngine.Compile(code, "");
29.  
    dynamic test = Py.CreateScope();
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    test.Execute(scriptCompiled);
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    dynamic r1 = test.replace("Init Python"); //OK
32.  
    // Console.WriteLine(r1);
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    Debug.LogError("Init Python");
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    position = (string) r1;
35.  
    }
36.  
     
37.  
    PythonEngine.Shutdown();

数据类型的对应

string[] mylist = (string[])pyList;

//or

List<string> mylist = ((string[])pyList).ToList<string>();