Python/C API Reference Manual

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

---

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 either class objects or string objects, depending on the use of the -X option to the interpreter. 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_RuntimeError	RuntimeError
PyExc_SyntaxError	SyntaxError
PyExc_SystemError	SystemError
PyExc_SystemExit	SystemExit
PyExc_TypeError	TypeError
PyExc_ValueError	ValueError
PyExc_ZeroDivisionError	ZeroDivisionError

Note:

(1)

This is a base class for other standard exceptions. If the -X interpreter option is used, these will be tuples containing the string exceptions which would have otherwise been subclasses.

---

Python/C API Reference Manual

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