Python 3.7 is no longer supported
Change effective on 08 November 2023
Python 3.7 reached its upstream end-of-life on June 27th, 2023, and so no longer receives security or bug fixes.
To raise awareness of this end-of-life, the Python buildpack has been outputting deprecation warnings in the build log since February 8, 2023.
As of today, Python 3.7 is no longer supported, and so the latest version of the Python buildpack rejects builds of apps using it.
Existing Python 3.7 apps continue to run, however, you must upgrade them to a newer version of Python before you can perform any further builds/code deployments.
Since Python 3.7 is no longer receiving security updates, apps still using it may contain security vulnerabilities. Upgrade them to a newer version of Python as soon as possible.
For more information, see Supported Python Versions.