Python 2.7 has reached end of support
and will bedeprecatedon 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 theirdeprecation date. We recommend that
youmigrate to the latest supported version of Python.
ExceptionsStay organized with collectionsSave and categorize content based on your preferences.
In addition to theDB datastore exceptions, the NDB datastore provides the following exception classes:
exceptionComputedPropertyError()
Raised when attempting to set a value to or delete a computed property.
exceptionInvalidPropertyError()
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.
exceptionReadonlyPropertyError()
Raised when attempting to set a property value that is read-only.
exceptionUnprojectedPropertyError()
Raised when getting a property value that's not in the projection.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-12-15 UTC."],[],[]]