Empty arrays strange behaviour

>>> a = arange(20, shape=(4,5))
>>> a
array([[ 0,  1,  2,  3,  4],
       [ 5,  6,  7,  8,  9],
       [10, 11, 12, 13, 14],
       [15, 16, 17, 18, 19]])
>>> a[2:4,5:7]   # Shouldn't it raise index error?
array([])

>>> a[2:4, 5:7].iscontiguous()
0    # ????
>>> a[2:4, 5:7].copy().iscontiguous()
0    # ????

Shouldn't iscontiguous method of empty arrays and array.copy() return 1?

  Nadav.


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