List LengthΒΆ
As with strings, the function len returns the length of a list (the number
of items in the list). However, since lists can have items which are themselves sequences (e.g., strings),
it important to note that len only returns the top-most length.
Note that alist[0] is the string "hello", which has length 5.
Check your understanding
- 4
- len returns the actual number of items in the list, not the maximum index value.
- 5
- Yes, there are 5 items in this list.
rec-5-1: What is printed by the following statements?
alist = [3, 67, "cat", 3.14, False]
print(len(alist))
- 2
- The list begins with the second item of L and includes everything up to but not including the last item.
- 3
- Yes, there are 3 items in this list.
- 4
- The list begins with the second item of L and includes everything up to but not including the last item.
- 5
- The list begins with the second item of L and includes everything up to but not including the last item.
rec-5-2: What is printed by the following statements?
L = [0.34, '6', 'SI106', 'Python', -2]
print(len(L[1:-1]))