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.
Exceptions
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In addition to the DB datastore exceptions, the NDB datastore provides the following exception classes:
- exception ComputedPropertyError()
- Raised when attempting to set a value to or delete a computed property.
- exception InvalidPropertyError()
- Raised when a property is not applicable to a given use. For example, a property must exist and be indexed to be used in a query's projection or group by clause.
- exception ReadonlyPropertyError()
- Raised when attempting to set a property value that is read-only.
- exception UnprojectedPropertyError()
- Raised when getting a property value that's not in the projection.