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Start your free trialEldin Guzin
6,010 PointsI have a question about one part of this video
def total_correct(self):
# return the total # of correct answers
total = 0
for answer in self.answers:
if answer[0]:
total += 1
return total
how does this exactly work, this is extremely confusing, what is self.answers exactly, if answer[0] , doesn't that always check the first answer, doesn't really make sense to me. An explanation would be very helpful here.
1 Answer
Steven Parker
231,275 Points"answers" (plural) is the whole list, but "answer" (singular) is a tuple where the first part is a boolean indicating whether it was correct or not. So "answer[0]" is that boolean value.
That means this loop is going through the list and counting up all the correct answers.
Eldin Guzin
6,010 PointsEldin Guzin
6,010 PointsThanks for the great answer Steven
Spencer Hurrle
3,128 PointsSpencer Hurrle
3,128 PointsSteven Parker Is this true for the variables in all for loops? Could you point me to where I could read more about that in documentation??
Steven Parker
231,275 PointsSteven Parker
231,275 PointsThe loop variable (after "for") will always be one item (at a time) from the iterable (that comes after "in").
For more details, see for statements in the official documentation.