List comprehensions

[tlively]

@mariajayne I noticed that your tic tac toe writeup introduces list comprehensions. Although they are my favorite Python feature, they are really just syntax sugar and I'm not sure it's worth spending time on them when we could be moving on to other more orthogonal features. On the other hand, they really are very useful. Thoughts?

[spencertiberi]

While I used a list comprehension in the distro for lexicon, I feel like it's knowledge that they don't need; I wouldn't spend a lot of time on them. We could remove them altogether or mention them briefly and move on, much like CS50 with the ternary operator and switches. If we keep them, I'd mention that they could also use for loops more traditionally as well.

[tlively]

I'd be for removing them altogether if we don't want to spend time on them, just to remove a potential stumbling block.

[spencertiberi]

I'm fine with that logic. It's something they'll be more than able to pick up on their own once they understand both lists and for loops well