How to call a C# code from python

Question

I wrote a C# code for connecting to Microsoft SharePoint, but i need to call it from python it means I wanna ask python to run this code, is it possible? if yes, how can I do this?

This is not a duplicate as this is NOT the same question as calling an external script from Python. See answers for details. — Jonathan B., Jan 14 '20 at 21:57

score 3 · Accepted Answer · answered May 22 '17 at 07:39

3

The short answer would be

os.system("myapp.exe")

answered May 22 '17 at 07:39

BugFinder

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dont forget `import os` – WhatsThePoint May 22 '17 at 07:49
4

if you provide an answer for this obvious dupe, at least do it properly. `os.system` is deprecated, `subprocess` module is the preferred way. And return code should be checked. – Jean-François Fabre May 22 '17 at 07:51

score 0 · Answer 2 · answered May 22 '17 at 07:50

It is actually pretty easy. Just use NuGet to add the "UnmanagedExports" package to your .Net project. See https://sites.google.com/site/robertgiesecke/Home/uploads/unmanagedexports for details.

You can then export directly, without having to do a COM layer. Here is the sample C# code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using RGiesecke.DllExport;

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

You can then load the dll and call the exposed methods in Python (works for 2.7)

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

Why the answer is copied from [here](https://stackoverflow.com/questions/7367976/calling-a-c-sharp-library-from-python)? Instead you could have provided the url... — Karthick Raju, Nov 14 '19 at 10:27

How to call a C# code from python

2 Answers2