fix(appengine): remove deprecated py37 datastore sample

[iennae]

this resolves b/475331956

Description

Fixes #b/475331956

Note: Before submitting a pull request, please open an issue for discussion if you are not associated with Google.

Checklist

• I have followed Sample Guidelines from AUTHORING_GUIDE.MD
• README is updated to include all relevant information
• Tests pass: nox -s py-3.9 (see Test Environment Setup)
• Lint pass: nox -s lint (see Test Environment Setup)
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

[snippet-bot]

Here is the summary of changes.

You are about to delete 1 region tag.

• appengine/flexible_python37_and_earlier/datastore/main.py:35, tag gae_flex_datastore_app

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[gemini-code-assist]

Summary of Changes

Hello @iennae, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request removes a deprecated sample application that demonstrated the use of Google Cloud Datastore within the App Engine Flexible Environment for Python 3.7 and earlier. The removal of this outdated sample streamlines the repository by eliminating unsupported code, ensuring that the collection of samples remains current and relevant for users.

Highlights

• Deprecated Sample Removal: The entire appengine/flexible_python37_and_earlier/datastore sample directory has been removed.
• File Deletions: All associated files, including README.md, app.yaml, main.py, main_test.py, noxfile_config.py, requirements-test.txt, and requirements.txt, have been deleted.
• Issue Resolution: This removal resolves the internal issue b/475331956, addressing the deprecation of this specific sample.

Changelog

• appengine/flexible_python37_and_earlier/datastore/README.md
  • Removed the README file for the deprecated Datastore sample.
• appengine/flexible_python37_and_earlier/datastore/app.yaml
  • Deleted the App Engine configuration file for the deprecated sample.
• appengine/flexible_python37_and_earlier/datastore/main.py
  • Removed the main application logic for the deprecated Datastore sample.
• appengine/flexible_python37_and_earlier/datastore/main_test.py
  • Deleted the unit tests associated with the deprecated Datastore sample.
• appengine/flexible_python37_and_earlier/datastore/noxfile_config.py
  • Removed the Nox configuration file specific to the deprecated sample.
• appengine/flexible_python37_and_earlier/datastore/requirements-test.txt
  • Deleted the test dependency file for the deprecated sample.
• appengine/flexible_python37_and_earlier/datastore/requirements.txt
  • Removed the production dependency file for the deprecated sample.

Activity

• The pull request was opened by iennae with a clear intent to remove a deprecated sample, referencing an internal issue.
• The author included a comprehensive checklist in the PR description, indicating adherence to project guidelines for samples, documentation, testing, and ownership.
• No other review comments or activity have been recorded on this pull request yet.

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[gemini-code-assist]

Code Review

This pull request correctly removes a deprecated Datastore sample for the App Engine flexible environment, which was specific to Python 3.7 and earlier. The deletion of the entire sample directory and its contents is appropriate. The changes are straightforward and I have no issues with the file removals. To ensure a complete cleanup, please also remove any lingering references to the deleted sample directory in other repository-level files, such as .github/CODEOWNERS, if any exist.