[Python] How to Import a C# WinForms DLL File in Python

I want to use a GUI made with C# WinForms in Python.

Here are the versions I am using:

Python: 3.12 Pythonnet: 3.0.5 For C#, I used Visual Studio 2022. When creating the project, I selected "WinForms" and wrote the code as follows:

enter image description here

namespace WinFormsApp1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{
MessageBox.Show("hello");

}

public static void ShowForm()
{
Application.Run(new Form1());
}

}
}


After building the solution in C#, I copied the DLL file from the Debug folder into the Python project folder.

For Python, I am using Visual Studio Code.

enter image description here

import clr
import os



def test():

clr.AddReference(r"./WinFormsApp1.dll")


from WinFormsApp1 import Form1


Form1.ShowForm()


if __name__ == "__main__":
test()


from WinFormsApp1 import Form1

As shown in the image, this part is not recognized.

What should I do?

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