Exceptions ########## The ldap3 exceptions hierarchy includes a LDAPException root class with two main branches: LDAPExceptionError and LDAPExceptionResult. The LDAPExceptionError contains 42 different exceptions that should help understanding what's going wrong when you have an error. A few of these (including all the LDAPCommunicationError exceptions) have multiple inheritance either from the LDAPExceptionError and from specific Python exceptions. This let you choose between catching standard Python errors or the more detailed ldap3 errors. The LDAPCommunicationError exceptions will be created at runtime and inherit the specific socket exception raised by the interpreter, so you can catch them with the specific socket.error or the more general LDAPCommunicationError. LDAPOperationResult (the other branch of LDAPException hierarchy) includes 48 exceptions, one for each possible error result (except RESULT_SUCCESS) specified in the LDAPv3 protocol. When you create a connection object with the "raise_exceptions" parameter set to True any unsuccesful LDAP operation will throw an exception of this class, subclassed to the specific LDAP result code exception. For example if you get an INVALID_DN_SYNTAX (result code 34) the connection will raise the LDAPInvalidDNSyntaxResult exception, with the following parameter: result, description, dn, message and the response_type. You can specify which result codes you don't want to raise exceptions, the default is : RESULT_COMPARE_FALSE, RESULT_COMPARE_TRUE, RESULT_REFERRAL (and of course RESULT_SUCCESS). You can change this behaviour in the ldap3 __init__.py package or at runtime modifying the ldap3.DO_NOT_RAISE_EXCEPTIONS list. The "raise_exceptions" mode is helpful if you want exceptions to flow up in the code and manage them at a upper level than the single operation level. This mode works in every kind of strategy, even in the ReusableStrategy (for connection pooling) where exceptions are trapped in the "effective" connection thread and are sent back to the calling connection object in the main (or another) thread. LDAPException --LDAPExceptionError ----LDAPBindError ----LDAPCertificateError ----LDAPChangeError (also inherits from ValueError) ----LDAPCommunicationError (all may inherit from socket.error) ------LDAPReferralError ------LDAPSessionTerminatedByServer ------LDAPSocketCloseError ------LDAPSocketOpenError ------LDAPSocketReceiveError ------LDAPSocketSendError ------LDAPUnknownRequestError ------LDAPUnknownResponseError ----LDAPConfigurationError ------LDAPUnknownStrategyError ------LDAPUnknownAuthenticationMethodError ------LDAPSSLConfigurationError ------LDAPDefinitionError ----LDAPConnectionIsReadOnlyError ----LDAPConnectionPoolNameIsMandatoryError ----LDAPConnectionPoolNotStartedError ----LDAPControlError (also inherits from ValueError) ----LDAPExtensionError ----LDAPInvalidDereferenceAliasesError (also inherits from ValueError) ----LDAPInvalidFilterError ----LDAPInvalidPort ----LDAPInvalidScopeError (also inherits from ValueError) ----LDAPInvalidServerError ----LDAPKeyError (also inherits from KeyError) ----LDAPLDIFError ----LDAPMaximumRetriesError ----LDAPMetricsError ----LDAPObjectClassError (also inherits from ValueError) ----LDAPObjectError ----LDAPPasswordIsMandatoryError ----LDAPCursorError ----LDAPMaximumRetriesError ----LDAPSASLBindInProgressError ----LDAPSASLMechanismNotSupportedError ----LDAPSASLPrepError ----LDAPSchemaError ----LDAPServerPoolError ----LDAPServerPoolExhaustedError ----LDAPSSLNotSupportedError (also inherits from ImportError) ----LDAPStartTLSError ----LDAPTypeError --LDAPOperationResult ----LDAPAdminLimitExceededResult ----LDAPAffectMultipleDSASResult ----LDAPAliasDereferencingProblemResult ----LDAPAliasProblemResult ----LDAPAssertionFailedResult ----LDAPAttributeOrValueExistsResult ----LDAPAuthMethodNotSupportedResult ----LDAPAuthorizationDeniedResult ----LDAPBusyResult ----LDAPCanceledResult ----LDAPCannotCancelResult ----LDAPConfidentialityRequiredResult ----LDAPConstraintViolationResult ----LDAPEntryAlreadyExistsResult ----LDAPESyncRefreshRequiredResult ----LDAPInappropriateAuthenticationResult ----LDAPInappropriateMatchingResult ----LDAPInsufficientAccessRightsResult ----LDAPInvalidAttributeSyntaxResult ----LDAPInvalidCredentialsResult ----LDAPInvalidDNSyntaxResult ----LDAPLCUPInvalidDataResult ----LDAPLCUPReloadRequiredResult ----LDAPLCUPResourcesExhaustedResult ----LDAPLCUPSecurityViolationResult ----LDAPLCUPUnsupportedSchemeResult ----LDAPLoopDetectedResult ----LDAPNamingViolationResult ----LDAPNoSuchAttributeResult ----LDAPNoSuchObjectResult ----LDAPNoSuchOperationResult ----LDAPNotAllowedOnNotLeafResult ----LDAPNotAllowedOnRDNResult ----LDAPObjectClassModsProhibitedResult ----LDAPObjectClassViolationResult ----LDAPOperationsErrorResult ----LDAPOtherResult ----LDAPProtocolErrorResult ----LDAPReferralResult ----LDAPSASLBindInProgressResult ----LDAPSizeLimitExceededResult ----LDAPStrongerAuthRequiredResult ----LDAPTimeLimitExceededResult ----LDAPTooLateResult ----LDAPUnavailableCriticalExtensionResult ----LDAPUnavailableResult ----LDAPUndefinedAttributeTypeResult ----LDAPUnwillingToPerformResult