sqlalchemy.exc

module documentation
(source)

Exceptions used with SQLAlchemy. The base exception class is :exc:`.SQLAlchemyError`. Exceptions which are raised as a result of DBAPI exceptions are all subclasses of :exc:`.DBAPIError`.

Class DontWrapMixin A mixin class which, when applied to a user-defined Exception class, will not be wrapped inside of :exc:`.StatementError` if the error is emitted within the process of executing a statement.
Class HasDescriptionCode helper which adds 'code' as an attribute and '_code_str' as a method
Exception AmbiguousForeignKeysError Raised when more than one foreign key matching can be located between two selectables during a join.
Exception ArgumentError Raised when an invalid or conflicting function argument is supplied.
Exception AwaitRequired Error raised by the async greenlet spawn if no async operation was awaited when it required one.
Exception Base20DeprecationWarning Issued for usage of APIs specifically deprecated or legacy in SQLAlchemy 2.0.
Exception CircularDependencyError Raised by topological sorts when a circular dependency is detected.
Exception CompileError Raised when an error occurs during SQL compilation
Exception ConstraintColumnNotFoundError raised when a constraint refers to a string column name that is not present in the table being constrained.
Exception DatabaseError Wraps a DB-API DatabaseError.
Exception DataError Wraps a DB-API DataError.
Exception DBAPIError Raised when the execution of a database operation fails.
Exception DisconnectionError A disconnect is detected on a raw DB-API connection.
Exception DuplicateColumnError a Column is being added to a Table that would replace another Column, without appropriate parameters to allow this in place.
Exception IdentifierError Raised when a schema name is beyond the max character limit
Exception IllegalStateChangeError An object that tracks state encountered an illegal state change of some kind.
Exception IntegrityError Wraps a DB-API IntegrityError.
Exception InterfaceError Wraps a DB-API InterfaceError.
Exception InternalError Wraps a DB-API InternalError.
Exception InvalidatePoolError Raised when the connection pool should invalidate all stale connections.
Exception InvalidRequestError SQLAlchemy was asked to do something it can't do.
Exception LegacyAPIWarning indicates an API that is in 'legacy' status, a long term deprecation.
Exception MissingGreenlet Error raised by the async greenlet await\_ if called while not inside the greenlet spawn context.
Exception MovedIn20Warning Subtype of RemovedIn20Warning to indicate an API that moved only.
Exception MultipleResultsFound A single database result was required but more than one were found.
Exception NoForeignKeysError Raised when no foreign keys can be located between two selectables during a join.
Exception NoInspectionAvailable A subject passed to :func:`sqlalchemy.inspection.inspect` produced no context for inspection.
Exception NoReferencedColumnError Raised by ``ForeignKey`` when the referred ``Column`` cannot be located.
Exception NoReferencedTableError Raised by ``ForeignKey`` when the referred ``Table`` cannot be located.
Exception NoReferenceError Raised by ``ForeignKey`` to indicate a reference cannot be resolved.
Exception NoResultFound A database result was required but none was found.
Exception NoSuchColumnError A nonexistent column is requested from a ``Row``.
Exception NoSuchModuleError Raised when a dynamically-loaded module (usually a database dialect) of a particular name cannot be located.
Exception NoSuchTableError Table does not exist or is not visible to a connection.
Exception NotSupportedError Wraps a DB-API NotSupportedError.
Exception ObjectNotExecutableError Raised when an object is passed to .execute() that can't be executed as SQL.
Exception OperationalError Wraps a DB-API OperationalError.
Exception PendingRollbackError A transaction has failed and needs to be rolled back before continuing.
Exception ProgrammingError Wraps a DB-API ProgrammingError.
Exception ResourceClosedError An operation was requested from a connection, cursor, or other object that's in a closed state.
Exception SADeprecationWarning Issued for usage of deprecated APIs.
Exception SAPendingDeprecationWarning A similar warning as :class:`_exc.SADeprecationWarning`, this warning is not used in modern versions of SQLAlchemy.
Exception SATestSuiteWarning warning for a condition detected during tests that is non-fatal
Exception SAWarning Issued at runtime.
Exception SQLAlchemyError Generic error class.
Exception StatementError An error occurred during execution of a SQL statement.
Exception TimeoutError Raised when a connection pool times out on getting a connection.
Exception UnboundExecutionError SQL was attempted without a database connection to execute it on.
Exception UnreflectableTableError Table exists but can't be reflected for some reason.
Exception UnsupportedCompilationError Raised when an operation is not supported by the given compiler.
Variable _version_token Undocumented
_version_token: str = (source)

Undocumented