I've left a comment as to why I changed the style here, but please let me know if you think the other spots should change into ```[* for x in range(some_num)]```. The reason I switch it up is because of the nasty empty list oddity:

```python
>>> foo = [[]] * 3
>>> foo
[[], [], []]
>>> foo[0].append(1)
>>> foo
[[1], [1], [1]]
>>> foo = [[] for _ in range(3)]
>>> foo
[[], [], []]
>>> foo[0].append(1)
>>> foo
[[1], [], []]
```