Install PyTorch on Ubuntu 20.04 Proposed Changes

[Learath]

Link: https://www.linode.com/docs/guides/pytorch-installation-ubuntu-2004/

Issue

When running the steps in 02 D Test your PyTorch Installation on ubuntu 2010 the provided examples don't function as expected when installed via pip:

print (torch.cuda.is_available)
<function is_available at 0x7f49cd9ef6d0>
print (torch.cuda.device_count)
<functools._lru_cache_wrapper object at 0x7f49bf2bd430>

Python3 expects () to actually execute the functions:

print (torch.cuda.is_available())
True
print (torch.cuda.device_count())
1

Suggested Fix

Update the docs to include the ().

[Rajakavitha1]

Thank you @Learath for raising the issue. This has now been fixed in #6738.