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- """_mysql_exceptions: Exception classes for _mysql and MySQLdb.
- These classes are dictated by the DB API v2.0:
- http://www.python.org/topics/database/DatabaseAPI-2.0.html
- """
- try:
- from exceptions import Exception, StandardError, Warning
- except ImportError:
- # Python 3
- StandardError = Exception
- class MySQLError(StandardError):
-
- """Exception related to operation with MySQL."""
- class Warning(Warning, MySQLError):
- """Exception raised for important warnings like data truncations
- while inserting, etc."""
- class Error(MySQLError):
- """Exception that is the base class of all other error exceptions
- (not Warning)."""
- class InterfaceError(Error):
- """Exception raised for errors that are related to the database
- interface rather than the database itself."""
- class DatabaseError(Error):
- """Exception raised for errors that are related to the
- database."""
- 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."""
- 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."""
- class IntegrityError(DatabaseError):
- """Exception raised when the relational integrity of the database
- is affected, e.g. a foreign key check fails, duplicate key,
- etc."""
- 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."""
- 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."""
- 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."""
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