FreeCodeCamp: Where do I Belong (Python)

where_belong.py

"""
Return the lowest index at which a value (second argument) 
should be inserted into an array (first argument) once it has been sorted. 
The returned value should be a number.

For example, getIndexToIns([1,2,3,4], 1.5) should return 1 
because it is greater than 1 (index 0), but less than 2 (index 1).

Likewise, getIndexToIns([20,3,5], 19) should return 2 
because once the array has been sorted it will look like [3,5,20] 
and 19 is less than 20 (index 2) and greater than 5 (index 1).

Piece of cake ;)
"""
def getIndexToIns(the_list, num):
    the_list.append(num)
    the_list.sort()
    return the_list.index(num)
print getIndexToIns([5, 3, 20, 3], 5)