gistfile1.py

i_indices = list()
j_indices = list()
values = list()

for i,k in enumerate(states.keys()):
    for v in states.keys()[i+1:]:
        if something:
            i_indices.append(vocab[k])
            j_indices.append(vocab[v])
            values.append(10)
            
            #symmetric here

shape_matrix = (max(states.itervalues()) + 1, max(states.itervalues()) + 1)
m = csr_matrix((values, (i_indices, j_indices)),
        shape=shape_matrix, dtype=np.float64)