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I have a c program that I need to compile and use in the middle of a python code. it is not c++ program so I assume I should change this syntax for compiling because I get a lot of errors related to not having "main()" in the program which is just because it is a c (not c++)for a x86_64 Mac system?

how should I change this syntax for a program.c code?

g++ -o program.x program.c

asked Oct 3, 2012 at 8:38
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  • 3
    I suggest you start by looking at e.g. SWIG. Commented Oct 3, 2012 at 8:43
  • I looked at SWIG a couple of times. The documentation is so massive that I decided to use Boost::Python and am not looking back. Commented Oct 3, 2012 at 9:29

1 Answer 1

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Your C code should be compiled into a shared library:

gcc -shared -o program.so -Wall -Wextra -fPIC -O2 -DNDEBUG program.c

And then you can use ctypes module to invoke functions in your library from Python.

answered Oct 3, 2012 at 8:43
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2 Comments

Shouldn't this be .dylib on a Mac?
It probably can have any extension since when loading the shared library in Python one can specify the full path. But you may be right in general, I only ever use Macs with Linux.

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