Python 2.7 has reached end of support and will be deprecated on January 31, 2026. After deprecation, you won't be able to deploy Python 2.7 applications, even if your organization previously used an organization policy to re-enable deployments of legacy runtimes. Your existing Python 2.7 applications will continue to run and receive traffic after their deprecation date. We recommend that you migrate to the latest supported version of Python.

Python 2.5

Support for Python 2.5 has been removed from App Engine. You must migrate to Python 2.7.

Deprecation and decommissioning history

The deprecation of Python 2.5 support was announced on March 8, 2013 and support was permanently shut down on June 20, 2017.

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Last updated 2025年06月16日 UTC.