Issue #455

[WillWritesCode]

Applied with torch.no_grad(): fixes for: "Can't call numpy() on Variable that requires grad"

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[WillWritesCode]

Checks failed with the following error:

Starting: Detect unstripped out notebook commits
==============================================================================
Task         : Command line
Description  : Run a command line script using Bash on Linux and macOS and cmd.exe on Windows
Version      : 2.164.0
Author       : Microsoft Corporation
Help         : https://docs.microsoft.com/azure/devops/pipelines/tasks/utility/command-line
==============================================================================
Generating script.
========================== Starting Command Output ===========================
/bin/bash --noprofile --norc /home/vsts/work/_temp/1a954cb5-351d-410d-9af2-a4913ac45c0c.sh
Trying to load all notebooks
Check we are starting with clean git checkout
Trying to strip out notebooks
Check that strip out was unnecessary
 M nbs/dl1/lesson3-camvid-tiramisu.ipynb
!!! Detected unstripped out notebooks
!!!Remember to run tools/run-after-git-clone

##[error]Bash exited with code '1'.
Finishing: Detect unstripped out notebook commits

That seems to relate to a notebook (nbs/dl1/lesson3-camvid-tiramisu.ipynb) that hasn't been changed in this commit.

I tried following the advice !!!Remember to run tools/run-after-git-clone by running that locally, but it made no changes to any files.

Can anyone advise?