Lesson on Programming with Python, taken from here: http://swcarpentry.github.io/python-novice-inflammation/02-loop.html
Which of the following codes will correctly reverse a string, i.e. word = 'Newton' to new_word = 'notweN'?
1. new_word = [] for letter in (word)[-1:]: new_word.append(letter)
2.
new_word = word[-1::]
3.
new_word = word[::-1]
4. new_word = [] for letter in (word)[::-1]: new_word.append(letter)
Reasons behind the chosen MCQs
demonstrates that the student have not learnt about how to solve this problem, but uses the logic that the list is being accessed in reversed manner
demonstrates that the student vaguely remembers about the usage of double colon symbol (::) but might be confused where to use it
is the right answer
shows that they have understanding of how loops work but have ignored the basic solution. However, This could also be a right answer when ''.join(new_word) was there, but this will return only the list of reversed letters