what is the meaning of index in python code example

Example 1: how to index lists in python

# Make the list
list = ['bananas', 'apples', 'watermellon']
# Print the word apples from the list
print(list[1])

Example 2: index error in python

# IndexError comes because you are trying to get the item that don't exists 
# it means if you ant to get the numbers

numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9 10]
length_of_numbers = len(numbers)

printnumbers(length_of_numbers)		# raises IndexError because the len() 
# function starts counting from 1 but the index sarts counting from 0