exception PendingDeprecationWarning Base class for warnings about features which will be deprecated in the future.

exception NotImplementedError This exception is derived from RuntimeError. In user defined base classes, abstract

exception BufferError Raised when a buffer related operation cannot be performed.

exception KeyboardInterrupt Raised when the user hits the interrupt key (normally Control-C or Delete)

exception RecursionError This exception is derived from RuntimeError. It is raised when the interpreter detects

exception FloatingPointError Raised when a floating point operation fails. This exception is always defined, but can only be

exception SystemExit This exception is raised by the

exception AttributeError Raised when an attribute reference (see Attribute references) or assignment fails. (When

exception IndentationError Base class for syntax errors related to incorrect indentation. This is a subclass of SyntaxError

exception ConnectionRefusedError A subclass of ConnectionError, raised when a connection attempt is refused by