Class
ZODB.POSException.DanglingReferenceError

An object has a persistent reference to a missing object.

If an object is stored and it has a reference to another object that does not exist (for example, it was deleted by pack), this exception may be raised. Whether a storage supports this feature, it a quality of implementation issue.

Instance attributes: referer: oid of the object being written missing: referenced oid that does not have a corresponding object

Base classes

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