| BaseException | |
| +-- SystemExit | |
| +-- KeyboardInterrupt | |
| +-- GeneratorExit | |
| +-- Exception | |
| +-- StopIteration | |
| +-- ArithmeticError | |
| | +-- FloatingPointError | |
| | +-- OverflowError | |
| | +-- ZeroDivisionError | |
| +-- AssertionError | |
| +-- AttributeError | |
| +-- BufferError | |
| +-- EnvironmentError | |
| | +-- IOError | |
| | +-- OSError | |
| | +-- WindowsError (Windows) | |
| | +-- VMSError (VMS) | |
| +-- EOFError | |
| +-- ImportError | |
| +-- LookupError | |
| | +-- IndexError | |
| | +-- KeyError | |
| +-- MemoryError | |
| +-- NameError | |
| | +-- UnboundLocalError | |
| +-- ReferenceError | |
| +-- RuntimeError | |
| | +-- NotImplementedError | |
| +-- SyntaxError | |
| | +-- IndentationError | |
| | +-- TabError | |
| +-- SystemError | |
| +-- TypeError | |
| +-- ValueError | |
| | +-- UnicodeError | |
| | +-- UnicodeDecodeError | |
| | +-- UnicodeEncodeError | |
| | +-- UnicodeTranslateError | |
| +-- Warning | |
| +-- DeprecationWarning | |
| +-- PendingDeprecationWarning | |
| +-- RuntimeWarning | |
| +-- SyntaxWarning | |
| +-- UserWarning | |
| +-- FutureWarning | |
| +-- ImportWarning | |
| +-- UnicodeWarning | |
| +-- BytesWarning |