QST: I am getting valueerror: setting an array element with a sequence
Struggling couple of hours with it, what is going wrong here?

Trying to implement a demo from the tutorial "Art of Pandas"
Here is my code that should replace an element in the array

```

import pandas as pd 
arr = pd.array([2, 5, 3], dtype="int")
arr[0] = [1]
```
