How to Get the Shape of a Tensor as a List of int in Pytorch?
To get the shape of a tensor as a list in PyTorch, we can use two approaches. One using the size() method and another by using the shape attribute of a tensor in PyTorch. In this short article, we are going to see how to use both of the approaches.
Using size() method:
The size() method returns the size of the self tensor. The returned value is a subclass of a tuple.
torch.Size([3, 4, 5])
We cast this into a list using the list() method.
You can also use the Python interactive session as shown below:
Using shape attribute:
The tensor.shape is an alias to tensor.size(), though the shape is an attribute, and size() is a method. To verify this we can run the following in the interactive session.
We can similarly cast this into a list using the list() method.
Alternatively using the interactive session:
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