Series.str.index()
pandas.Series.str.index
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Series.str.index(sub, start=0, end=None)
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Return lowest indexes in each strings where the substring is fully contained between [start:end]. This is the same as
str.find
except instead of returning -1, it raises a ValueError when the substring is not found. Equivalent to standardstr.index
.Parameters: sub : str
Substring being searched
start : int
Left edge index
end : int
Right edge index
Returns: