I need to create a NumPy array of length `n`

, each element of which is `v`

.

Is there anything better than:

```
a = empty(n)
for i in range(n):
a[i] = v
```

I know `zeros`

and `ones`

would work for v = 0, 1. I could use `v * ones(n)`

, but it ~~won’t work when ~~ would be much slower.`v`

is `None`

, and also