'How to find the indices of a certain value in pandas series [duplicate]

Suppose I have a pandas series:

a = [1 ,2 ,4 ,2 ,7 , 2 ,8]

How to tell Python to return the indices that have values equals to 2?

Thanks.

Solution 1:^[1]

I think this should work. Assumiming a is a pandas series.

f = a==2
indices = f[f].index

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Solution	Source
Solution 1	Kristianfkt