Fix the different behavior of the division operator in python3.6 #10
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…oat in python3.6, which makes the return values of the function different
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get_class_ind() function is supposed to return class indices, but '/' operator does float division in python3.6 while it does integer divison in python2.7. As a result, we can get class indices such as 9.75, which creates a bug in the code. For example, we have the below line at line 171.
sq_dists[self.get_class_ind(seed_cluster) == self.cluster_classes] = np.infWhen the left-hand side of == does not return a whole number in python3.6, none of the values in self.cluster_classes are equal to that value. This behaviour is fixed by changing '/' to '//' since '//' does integer division in both python versions.