Create a function that takes a list and a number as arguments and returns the index of the number in the list if it exists. Otherwise, it should return -1.
Example 1:
Input: [1, 3, 5, 7, 9], 5 Output: 2
Example 2:
Input: [2, 4, 6, 8, 10], 7 Output: -1
Use the built-in index() method to find the index of an element in a list. Handle exceptions when the element is not found in the list.
def find_index(lst, n):
try:
return lst.index(n)
except ValueError:
return -1
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