The setup is simple: in
cy.pyx(see below) we have two alternative implementations that compute the Nth element of the Fibonacci series. One version has Cython declarations that the variables are ints (and one for the function itself). The second version is plain Python. In a simple Python script
This translates the Python to C, builds it, and makes it accessible from within Python. We have to "wrap" the functions in Python calls in order to use
timeit(at least, that's how I did it). Then we go to the command line and compare:
The Cython version is quite a bit faster! Curiously cdef'ing the temp variable slows the timing down by a factor of 10. Hmm..
[UPDATE: There are issues!