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Editorial Team
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Asked: 2026-06-13T21:59:37+00:00

From the Google App Engine documentation: cursor() returns a base64-encoded cursor string denoting the

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From the Google App Engine documentation:

“cursor() returns a base64-encoded cursor string denoting the position in the query’s result set following the last result retrieved.”

What does it return if the the last result retrieved IS the last result in the query set? Wouldn’t this mean that there is no position that can ‘follow’ the last result retrieved? Therefore, is ‘None’ returned?

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  1. Editorial Team

    If all results have been consumed, the cursor just points to that position.

    In other words, the cursor points to where new results would appear if you were to add more items to the datastore. From the Datastore Queries documentation:

    A cursor marks a location within a query’s index from which to begin the next scan for results. As such, it does not represent a relative offset within the query’s result list, but rather the position following a specific result. If the query’s results change between uses of a cursor, only those changes that follow the cursor position in the index will affect the results of subsequent retrievals.

    The cursor() method will never return None.

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