NameError: name 'torch' is not defined - How to Fix

The error message 'NameError: name 'torch' is not defined' means that you're trying to use the 'torch' module in your Python code, but it hasn't been imported yet. This usually happens when you're working with the PyTorch library for machine learning.

How to fix the error:

1. Import the 'torch' module:

   Before you can use any functions or classes from the 'torch' module, you need to import it into your script. You can do this by adding the following line at the beginning of your code:

   python import torch

2. Install PyTorch (if you haven't already):

   If you haven't installed PyTorch on your system, you'll need to do that first. You can install it using pip:

   bash pip install torch Make sure you have the correct version of Python and pip installed for your operating system.

Example:

Here's an example of how to use the 'torch.squeeze()' function correctly:pythonimport torch

Your code herex = torch.randn(2, 1, 2, 2) # Example tensorx = torch.squeeze(x, dim=1)print(x.shape)

This code will now run without errors because the 'torch' module is correctly imported.

If you're still encountering the error after importing 'torch' and installing PyTorch, double-check that you're running the correct Python environment and that the 'torch' module is accessible within that environment.