port only a single method of class to C?

I have a class with few methods and I'm happy with the performance of all of them except one method. We want to port that to C++. However we don't want to spend too much time porting the whole class to C++, just that single method. Is thi开发者_Python百科s possible? How should I do it? Should it be in a blank class? Not in a class? What I want is to try to use the C version and if failed (other OS, missing pyd), load the Python version. Thank you.

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Depending on the complexity of your code, you could look into using Weave, which is part of SciPy. It allows you to embed C/C++ code in your python module. There's a tutorial here.

Another option you could look at is Boost::Python, which may be a bit more complex to use.