Python/C API Reference Manual

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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

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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Python/C API Reference Manual

Previous: 4. Exception Handling Up: 4. Exception Handling Next: 4.2 Deprecation of String

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Release 2.2p1, documentation updated on March 29, 2002.