How Can I Call a C# Library (Including WPF) from Python?

Invoking a C# Library from Python

In response to the query regarding calling a C# library (particularly WPF) from Python code, there is a straightforward solution utilizing NuGet and the "UnmanagedExports" package.

Implementation:

• Add the Package: Install the "UnmanagedExports" package in your C# project using NuGet.
• Export Directly: Eliminate the need for COM by using the UnmanagedExports package to export methods directly. An example snippet for exporting the "add" function is provided below:

[DllExport("add", CallingConvention = CallingConvention.Cdecl)]
public static int TestExport(int left, int right)
{
    return left + right;
}

Integration with Python:

Load the exported DLL into Python using ctypes. For Python 2.7, the following code demonstrates how to import and call the "add" function:

import ctypes
a = ctypes.cdll.LoadLibrary(source)
a.add(3, 5)

By utilizing this approach, you can seamlessly call C# library functions from Python code, bridging the compatibility gap between the two languages.

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