Bump up runtime version to python 3.13

[sharmaharisam]

Description

Bump up python runtime version to latest python 3.13

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 add 1 region tag.

• appengine/standard_python3/building-an-app/building-an-app-1/main.py:15, tag gae_python313_render_template

You are about to delete 1 region tag.

• appengine/standard_python3/building-an-app/building-an-app-1/main.py:15, tag gae_python38_render_template

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[gemini-code-assist]

Hello @sharmaharisam, 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!

Summary of Changes

This pull request updates the runtime environment for an App Engine application from Python 3.9 to Python 3.13. The changes involve modifying the app.yaml file to specify the new runtime and updating the main.py file to reflect the new runtime version in the application's metadata.

Highlights

• Runtime Update: The primary change is updating the App Engine runtime environment from Python 3.9 to Python 3.13.
• app.yaml Modification: The app.yaml file is modified to specify runtime: python313.
• main.py Metadata Update: The main.py file is updated to reflect the new runtime version in the application's metadata, specifically changing gae_python38_render_template to gae_python313_render_template.

Changelog

• appengine/standard_python3/building-an-app/building-an-app-1/app.yaml
  • Updated the runtime from python39 to python313.
• appengine/standard_python3/building-an-app/building-an-app-1/main.py
  • Updated the metadata tag from gae_python38_render_template to gae_python313_render_template.
  • Updated the ending metadata tag from gae_python38_render_template to gae_python313_render_template.

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Python's versions evolve,
From 3.9 to 3.13 we stroll,
App Engine's embrace,
A newer, faster pace,
Code's journey takes its toll.

Footnotes

1. Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution. ↩

[gemini-code-assist]

Code Review

The pull request updates the runtime version in app.yaml and adjusts the start/end tags in main.py to reflect the new Python version. The changes seem straightforward and necessary for compatibility with the specified runtime environment.

Merge Readiness

The changes appear to be correct and necessary for updating the application to use Python 3.13. I am unable to directly approve the pull request, and recommend that others review and approve this code before merging. Given the limited scope and apparent correctness of the changes, the pull request seems ready for merging.

[Hemant28codes]

Changes looks good to me