[Python] raise Handling Exceptions－FLASHC

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May 11 Wed 2011 10:53
[Python] raise Handling Exceptions

The raise statement allows the programmer to force a specified exception to occur. For example:

>>> raise NameError('HiThere')
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
NameError: HiThere

The sole argument to raise indicates the exception to be raised. This must be either an exception instance or an exception class (a class that derives from Exception).

8. Errors and Exceptions — Python v2.7.1 documentation
http://docs.python.org/tutorial/errors.html#raising-exceptions