distance matrix with numpy/scipy

distance_matrix.py

# http://docs.scipy.org/doc/scipy/reference/generated/scipy.spatial.distance.pdist.html
from scipy.spatial.distance import squareform, pdist

def test_distance():
    X = [[2,3,4],[0,0,0],[1,1,1],[2,2,2]]
    print pdist(X, 'euclidean')
    print squareform(pdist(X, 'euclidean'))
    print squareform(pdist(X, polynomial_kernel))    

test_distance()