human
index of last occurence of an element in a list in.
assistant
Here is a Python code to index the last occurence of an element in a list

# Enter the list
list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

# Enter the element
element = 5

# Calling the function
print((last_index(list, element)))

#Remember to inspect code for bugs.