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Editorial Team
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Asked: 2026-05-13T22:17:13+00:00

Let’s say I need to use Python and C++. I can call Python function

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Let’s say I need to use Python and C++. I can call Python function from C++ with Python C API, and reverse is possible with SWIG or equivalent.

How about .NET? I know there are IronPython and C# that finally produces .NET assembly. Is there any well-defined language interoperability mechanism in .NET so that one can use whatever function calls from whatever language?

  • If so, what are the mechanisms for that?
  • If not, what one can do to call functions from one language to another?
  • The .NET mechanism is the same as MONO in terms of language interoperability?
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1 Answer

  1. Editorial Team

    If you’re talking about IronPython and C#, then the two languages can interoperate seamlessly via the CLI (that is, the Common Language Infrastructure). That means, the methods in the C# code are directly accessible from IronPython and vice versa.

    For other languages that don’t compile to .NET bytecode directly (e.g. Lua), then you will have to use P/Invoke to call the C API (or use one that someone else has already written, like LuaInterface for Lua).

    Mono is basically the same, you just have to be careful with your P/Invoke declarations (i.e. you can’t reference “lua51 .dll” because Linux has .so files, not .dll files)

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