Assuming words is a valid list of words, the program below tries to print the list in reverse. Does it have an error ? If so, why ? (Hint. There are two problems with the code.)

for i in range(len(words), 0, -1):
    print(words[i], end=' ')  

There are two issue in range(len(words), 0, -1):

1. The start index len(words) is invalid for the list words as it will have indexes from 0 to len(words) - 1.
2. The end index being 0 means that the last element of the list is missed as the list will be iterated till index 1 only.

The corrected python code is :

for i in range(len(words)-1, -1, -1):
    print(words[i], end=' ')