why you use next in your code at 8:01:40 time

[aly202012]

In time match to 8:01:40
you use next in your code

next(model_1.parameters()).device

I want to know why you use next.
thank you for your hard work.

[mrdbourke]

Hey @aly202012,

next() = to take a "next step" in an iterator (see here: https://www.w3schools.com/python/ref_func_next.asp).

I do this to get a single parameter from the model parameters and check its device.

You can try running it without next() and see what happens.

[rkodja]

anyone still taking this?
i'm at this part and it doesn't appear to be moving to the gpu:
model_1.to(device)
next(model_1.parameters()).device
device(type='cpu')

[rkodja]

this worked when i came back from coffee :)