attribute
chararray.base
Base object if memory is from some other object.
The base of an array that owns its memory is None:
>>> x = np.array([1,2,3,4]) >>> x.base is None True
Slicing creates a view, whose memory is shared with x:
>>> y = x[2:] >>> y.base is x True
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https://docs.scipy.org/doc/numpy-1.17.0/reference/generated/numpy.char.chararray.base.html