For the gradebook project ( https://www.codecademy.com/courses/learn-python-3/projects/python-gradebook )
Step 3 asks you to creade a 2d list that combines two lists. Up to that point, we were only taught to .append , so when you combine list1 + list2 you get one long flat list. I tried creating my own method that used a for loop, and that didnt work. Then I used zip and made some progress.
Now I noticed that there are parenthesis around my original subjects list instead of brackets. The problem I believe is that I can not iterate through that original list and ‘poetry’, 85 has become immutable or a tuple or w/e…
[(‘physics’, 98), (‘calculus’, 97), (‘poetry’, 85), (‘history’, 88), [‘computer science’, 100], [‘visual arts’, 98]]
Go through the gradebook project since it apparently has been changed multiple times and not QA’d and discuss the right way to merge lists to create a 2d list that can be iterated through.