list_a = ["Hello", 2, 15, "World", 34]
number_of_elements = len(list_a)
print("Number of elements in the list: ", number_of_elements)
def length(items):
how_many = 0
for i in items:
how_many += 1
return how_many
a = [8,59,69,49,78,4,7]
print(length(a))
>>> len([1,2,3])
3