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Awire9966 opened this issue Oct 28, 2022 · 2 comments
Closed

Trying to use Python DLL results in error. #1989

Awire9966 opened this issue Oct 28, 2022 · 2 comments

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@Awire9966
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Awire9966 commented Oct 28, 2022 •
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Environment

  • Pythonnet version: 3.0
  • Python version: 3.11
  • Operating System: Windows 10
  • .NET Runtime: Net Framework 4.7.1

Details

  • Describe what you were trying to get done.

    I was trying to test the features of pythonnet because I was really hopeful for this api.

  • What commands did you run to trigger this issue? If you can provide a
    Minimal, Complete, and Verifiable example
    this will help us understand the issue.

I tried setting the DLL location with the variable and it straight up crashes. I tried using the python38 dll but that gives the same error.

 Unhandled Exception: System.TypeInitializationException: The type initializer for 'Delegates' threw an exception. ---> System.DllNotFoundException: Could not load C:\Users\Awire\source\repos\pythonnettest\pythonnettest\bin\Debug\python311.dll. ---> System.ComponentModel.Win32Exception: %1 is not a valid Win32 application
   --- End of inner exception stack trace ---
   at Python.Runtime.Platform.WindowsLoader.Load(String dllToLoad)
   at Python.Runtime.Runtime.Delegates.GetUnmanagedDll(String libraryName)
   at Python.Runtime.Runtime.Delegates..cctor()
   --- End of inner exception stack trace ---
   at Python.Runtime.Runtime.Delegates.get_Py_IsInitialized()
   at Python.Runtime.Runtime.Py_IsInitialized()
   at Python.Runtime.Runtime.<>c.<Initialize>b__32_0()
   at Python.Runtime.Runtime.TryUsingDll[T](Func`1 op)
   at Python.Runtime.Runtime.Initialize(Boolean initSigs)
   at Python.Runtime.PythonEngine.Initialize(IEnumerable`1 args, Boolean setSysArgv, Boolean initSigs)
   at Python.Runtime.PythonEngine.Initialize()
   at pythonnettest.Program.Main(String[] args) in C:\Users\Awire\source\repos\pythonnettest\pythonnettest\Program.cs:line 17C:\Users\Awire\source\repos\pythonnettest\pythonnettest\bin\Debug\python311.dll. ---> System.ComponentModel.Win32Exception: %1 is not a valid Win32 application
   --- End of inner exception stack trace ---
   at Python.Runtime.Platform.WindowsLoader.Load(String dllToLoad)
   at Python.Runtime.Runtime.Delegates.GetUnmanagedDll(String libraryName)
   at Python.Runtime.Runtime.Delegates..cctor()
   --- End of inner exception stack trace ---
   at Python.Runtime.Runtime.Delegates.get_Py_IsInitialized()
   at Python.Runtime.Runtime.Py_IsInitialized()
   at Python.Runtime.Runtime.<>c.<Initialize>b__32_0()
   at Python.Runtime.Runtime.TryUsingDll[T](Func`1 op)
   at Python.Runtime.Runtime.Initialize(Boolean initSigs)
   at Python.Runtime.PythonEngine.Initialize(IEnumerable`1 args, Boolean setSysArgv, Boolean initSigs)
   at Python.Runtime.PythonEngine.Initialize()
   at pythonnettest.Program.Main(String[] args) in C:\Users\Awire\source\repos\pythonnettest\pythonnettest\Program.cs:line 17

My C# code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Python.Runtime;
using Python;
using System.IO;

namespace pythonnettest
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Runtime.PythonDLL = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location) + @"\python311.dll";
            PythonEngine.Initialize();
            PythonEngine.Exec("print('Hello')");
            

        }
    }
}
  • If there was a crash, please include the traceback here.

N/A
@filmor
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filmor commented Oct 28, 2022

Python 3.11 is not supported yet:

image

You'll have to wait for #1955 to land.

@filmor filmor closed this as completed Oct 28, 2022
@Awire9966
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Still doesnt work, gives me this error:

Unhandled Exception: System.TypeInitializationException: The type initializer for 'Delegates' threw an exception. ---> System.DllNotFoundException: Could not load C:\Users\Awire\source\repos\pythonnettest\pythonnettest\bin\Debug\python310.dll. ---> System.ComponentModel.Win32Exception: %1 is not a valid Win32 application
   --- End of inner exception stack trace ---
   at Python.Runtime.Platform.WindowsLoader.Load(String dllToLoad)
   at Python.Runtime.Runtime.Delegates.GetUnmanagedDll(String libraryName)
   at Python.Runtime.Runtime.Delegates..cctor()
   --- End of inner exception stack trace ---
   at Python.Runtime.Runtime.Delegates.get_Py_IsInitialized()
   at Python.Runtime.Runtime.Py_IsInitialized()
   at Python.Runtime.Runtime.<>c.<Initialize>b__32_0()
   at Python.Runtime.Runtime.TryUsingDll[T](Func`1 op)
   at Python.Runtime.Runtime.Initialize(Boolean initSigs)
   at Python.Runtime.PythonEngine.Initialize(IEnumerable`1 args, Boolean setSysArgv, Boolean initSigs)
   at Python.Runtime.PythonEngine.Initialize()
   at pythonnettest.Program.Main(String[] args) in C:\Users\Awire\source\repos\pythonnettest\pythonnettest\Program.cs:line 17

@Awire9966 Awire9966 mentioned this issue Oct 28, 2022
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@filmor @Awire9966