Numpy Crie Array com infinitos

>>> sample = np.matrix(np.ones((50,50)) * np.inf)
>>> sample
matrix([[ inf,  inf,  inf, ...,  inf,  inf,  inf],
    [ inf,  inf,  inf, ...,  inf,  inf,  inf],
    [ inf,  inf,  inf, ...,  inf,  inf,  inf],
    ..., 
    [ inf,  inf,  inf, ...,  inf,  inf,  inf],
    [ inf,  inf,  inf, ...,  inf,  inf,  inf],
    [ inf,  inf,  inf, ...,  inf,  inf,  inf]])
Real Raccoon