numpy / 1.18.5 / reference / generated / numpy.char.chararray.index.html /

numpy.char.chararray.index

method

chararray.index(self, sub, start=0, end=None)

Like find, but raises ValueError when the substring is not found.

See also

char.index

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https://numpy.org/doc/1.18/reference/generated/numpy.char.chararray.index.html