How to convert a list whose element is Tensor to a Tensor?

I have a list like [x1, x2, ..., xn], and xi is a Tensor with size torch.Size([2, 3]), how to convert this list a Tensor with size torch.Size([n, 2, 3]). I am looking for an elegant method. Thanks for your reply.

You could use torch.stack:

n = 10
l = [torch.randn(2, 3) for _ in range(n)]
t = torch.stack(l)
> torch.Size([10, 2, 3])