Python name 'device' is not defined

The error message "Python name 'device' is not defined" means that the v[aria](https://geek.csdn.net/educolumn/463d440d0a4c351bc15e5ce55f37f0bb?spm=1055.2569.3001.10083)ble "device" has not been defined or declared before it is being used in the code. To fix this error, you need to declare or define the "device" v[aria](https://geek.csdn.net/educolumn/463d440d0a4c351bc15e5ce55f37f0bb?spm=1055.2569.3001.10083)ble before using it. You can define it using the "torch.device" method, which is commonly used in [pytorch](https://geek.csdn.net/educolumn/1309512bb95bbd063a82fd0157e558d8?spm=1055.2569.3001.10083) code. Here's an example code snippet that defines the "device" v[aria](https://geek.csdn.net/educolumn/463d440d0a4c351bc15e5ce55f37f0bb?spm=1055.2569.3001.10083)ble: import torch # define device device = torch.device("cuda" if torch.cuda.is_available() else "cpu") # use device in code model.to(device) In this example, we are using the "torch.cuda.is_available()" method to check if a GPU is available and then defining the "device" v[aria](https://geek.csdn.net/educolumn/463d440d0a4c351bc15e5ce55f37f0bb?spm=1055.2569.3001.10083)ble ac