numpy.strings.index#

strings.index(a,sub,start=0,end=None)[source]#

Likefind, but raisesValueError when the substring is not found.

Parameters:

aarray-like, withStringDType,bytes_, orstr_ dtype

subarray-like, withStringDType,bytes_, orstr_ dtype

start, endarray_like, with any integer dtype, optional

Returns:

outndarray

Output array of ints.

See also

find,str.index

Examples

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>>>importnumpyasnp>>>a=np.array(["Computer Science"])>>>np.strings.index(a,"Science",start=0,end=None)array([9])

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