The cosine() function of scipy can be used to compute the cosine distance between two numpy arrays or list.

Here is an example:

>>> from scipy.spatial.distance import cosine>>> import numpy as np>>> a=np.array([1,0,0,1,1,0,0,0,1])>>> b=np.array([1,0,0,1,1,0,0,1,1])>>> cosine(a,b)0.10557280900008414