How write program in multiple Languages?

Question

I want to combine Python and C# how to do it...

Answer 1

your probably gonna have to make two separate programs and have one call the other

Answer 2

one of them could be compiled into a dynamic library and the other one would then import it and use as a normal library, doing so requires specific preparation. for example it is possible to compile c++like code for the use with python using the cython framework and compiler.