In the secrets module documentation, the examples in `15.3.4. Recipes and best practices` need change things, I think this examples must run after a copy & paste into user terminal.

Options for first example:
1:
````
import string
from secrets import choice
alphabet = string.ascii_letters + string.digits
password = ''.join(choice(alphabet) for i in range(8))
````

2:
```
import string
import secrets
alphabet = string.ascii_letters + string.digits
password = ''.join(secrets.choice(alphabet) for i in range(8))
````

I've looked in the devguide, but I haven't found what's the standard approach here.

First issue here, be nice :)