4.1 Standard Exceptions

All standard Python exceptions are available as global variables whose names are "PyExc_" followed by the Python exception name. These have the type PyObject*; they are all class objects. For completeness, here are all the variables:

C Name Python Name Notes

PyExc_Exception Exception (1)
PyExc_StandardError StandardError (1)
PyExc_ArithmeticError ArithmeticError (1)
PyExc_LookupError LookupError (1)
PyExc_AssertionError AssertionError
PyExc_AttributeError AttributeError
PyExc_EOFError EOFError
PyExc_EnvironmentError EnvironmentError (1)
PyExc_FloatingPointError FloatingPointError
PyExc_IOError IOError
PyExc_ImportError ImportError
PyExc_IndexError IndexError
PyExc_KeyError KeyError
PyExc_KeyboardInterrupt KeyboardInterrupt
PyExc_MemoryError MemoryError
PyExc_NameError NameError
PyExc_NotImplementedError NotImplementedError
PyExc_OSError OSError
PyExc_OverflowError OverflowError
PyExc_ReferenceError ReferenceError (2)
PyExc_RuntimeError RuntimeError
PyExc_SyntaxError SyntaxError
PyExc_SystemError SystemError
PyExc_SystemExit SystemExit
PyExc_TypeError TypeError
PyExc_ValueError ValueError
PyExc_WindowsError WindowsError (3)
PyExc_ZeroDivisionError ZeroDivisionError

C Name	Python Name	Notes
`PyExc_Exception`	`Exception`	(1)
`PyExc_StandardError`	`StandardError`	(1)
`PyExc_ArithmeticError`	`ArithmeticError`	(1)
`PyExc_LookupError`	`LookupError`	(1)
`PyExc_AssertionError`	`AssertionError`
`PyExc_AttributeError`	`AttributeError`
`PyExc_EOFError`	`EOFError`
`PyExc_EnvironmentError`	`EnvironmentError`	(1)
`PyExc_FloatingPointError`	`FloatingPointError`
`PyExc_IOError`	`IOError`
`PyExc_ImportError`	`ImportError`
`PyExc_IndexError`	`IndexError`
`PyExc_KeyError`	`KeyError`
`PyExc_KeyboardInterrupt`	`KeyboardInterrupt`
`PyExc_MemoryError`	`MemoryError`
`PyExc_NameError`	`NameError`
`PyExc_NotImplementedError`	`NotImplementedError`
`PyExc_OSError`	`OSError`
`PyExc_OverflowError`	`OverflowError`
`PyExc_ReferenceError`	`ReferenceError`	(2)
`PyExc_RuntimeError`	`RuntimeError`
`PyExc_SyntaxError`	`SyntaxError`
`PyExc_SystemError`	`SystemError`
`PyExc_SystemExit`	`SystemExit`
`PyExc_TypeError`	`TypeError`
`PyExc_ValueError`	`ValueError`
`PyExc_WindowsError`	`WindowsError`	(3)
`PyExc_ZeroDivisionError`	`ZeroDivisionError`

Notes:

(1): This is a base class for other standard exceptions.
(2): This is the same as weakref.ReferenceError.
(3): Only defined on Windows; protect code that uses this by testing that the preprocessor macro MS_WINDOWS is defined.

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