How to print only the value of tensor but not the information such as device under pytorch

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When printing data of torch.Tensor type loss and acc

If it is written as follows

Print ('batch_loss:' + str (loss.data) + 'batch acc:' + str (acc.data))

Not only the values of loss and acc will be printed, but also the device information and the words tensor will be printed, as follows:

Batch_loss: tensor (2.4252, device='cuda:0') batch acc: tensor (0.2969, device='cuda:0')

If you only want to print out numerical values, make the printed information more concise.

It should be written in the following ways

Print ('batch_loss: {: .3f} batch acc: {: .3f}' .format (loss.data, acc.data))

This method can also control the output format, and the result is similar to the following:

Batch loss: 2.312 batch acc: 0.164

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