Finding the index of an item in a list

Question

Given a list [\"foo\", \"bar\", \"baz\"] and an item in the list \"bar\", how do I get its index (1) in Python?

Answer 1

Let’s give the name lst to the list that you have. One can convert the list lst to a numpy array. And, then use numpy.where to get the index of the chosen item in the list. Following is the way in which you will implement it.

import numpy as np

lst = ["foo", "bar", "baz"]  #lst: : 'list' data type
print np.where( np.array(lst) == 'bar')[0][0]

>>> 1