Let's say I have an array defined as

```
[
  [1, 2, 3],
  [4, 5, 6],
  [7, 8, 9]
]

```

and I wanted to get a vertical slice, returning `[2, 5, 8]`. Is there any way to do this with slicing syntax in straight Python? When I try to look up multidimensional slicing, the only results I tend to see are all talking about numpy, and using the syntax discussed there gives errors in raw Python.