Description of changes: Download MNIST dataset from AWS-hosted bucket, instead of from broken third-party URL. Add missing os package import.
Testing done: Ran code snippet in SageMaker notebook instance.
Merge Checklist
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Issue #, if available: https://github.com/aws/amazon-sagemaker-examples/issues/2876
Description of changes: Download MNIST dataset from AWS-hosted bucket, instead of from broken third-party URL. Add missing os package import.
Testing done: Ran code snippet in SageMaker notebook instance.
Merge Checklist
Put an
x
in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your pull request.General
Tests
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