"""etcdb exceptions"""
[docs]class Error(Exception):
"""Exception that is the base class of all other error exceptions."""
[docs]class Warning(Exception): # pylint: disable=redefined-builtin
"""Exception raised for important warnings
like data truncations while inserting, etc."""
[docs]class InterfaceError(Error):
"""Exception raised for errors that are related to the database
interface rather than the database itself."""
[docs]class DatabaseError(Error):
"""Exception raised for errors that are related to the database."""
[docs]class DataError(DatabaseError):
"""Exception raised for errors that are due to problems with
the processed data like division by zero, numeric value out of range,
etc."""
[docs]class OperationalError(DatabaseError):
"""Exception raised for errors that are related to the database's
operation and not necessarily under the control of the programmer,
e.g. an unexpected disconnect occurs, the data source name is not found,
a transaction could not be processed, a memory allocation error
occurred during processing, etc."""
[docs]class IntegrityError(DatabaseError):
"""Exception raised when the relational integrity of the database
is affected, e.g. a foreign key check fails."""
[docs]class InternalError(DatabaseError):
"""Exception raised when the database encounters an internal error,
e.g. the cursor is not valid anymore, the transaction is out of sync,
etc."""
[docs]class ProgrammingError(DatabaseError):
"""Exception raised for programming errors, e.g. table not found
or already exists, syntax error in the SQL statement, wrong number of
parameters specified, etc."""
[docs]class NotSupportedError(DatabaseError):
"""Exception raised in case a method or database API was used
which is not supported by the database,
e.g. requesting a .rollback() on a connection that does not support
transaction or has transactions turned off."""