The problem is that I have a list `"l"`

of which I want to select a random item several times without repeating it, and I do not know how to do it. Any suggestions?

```
import random
l = ["a", "b", "c", "d"]
sel1 = random.choice(l)
```

That's fine, but now I want to define a `"sel2"`

that is a random element of `"l"`

but different of `"sel1"`

. And so we can continue defining a `"sel3"`

different from `"sel1"`

and `"sel2"`

.

Thanks in advance =)