Python equivalent of Matlab code

[scidam]

If you have a meshgrid data, e.g.

import numpy as np
# x, y -- 1D arrays
X, Y = np.meshgrid(x, y)
# Z is a matrix, 

you can always do

interpolate.interp2d(X.ravel(), Y.ravel(), Z.ravel())

Another option, that should also work, is

interpolate.interp2d(x, y, Z)

It seems (from the docs) that MatLab's interp2 and scipy's interp2d do not differ significantly.