retrieve the first element in a list py code example

Example 1: python first n elements of list

a=list((1, 2, 3))
n=1
a[:n]

output:
[1]

Example 2: how to get first element of array in python

arr = ["cat", "dog", "rabbit"]
first_element = arr[0]

Example 3: how to prit a certian in a list python

how to prit a certian in a list python