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@ -28,10 +28,10 @@ handler or to report an error condition "just like" the situation in which the
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interpreter raises the same exception; but beware that there is nothing to
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prevent user code from raising an inappropriate error.
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The built-in exception classes can be sub-classed to define new exceptions;
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programmers are encouraged to at least derive new exceptions from the
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:exc:`Exception` class and not :exc:`BaseException`. More information on
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defining exceptions is available in the Python Tutorial under
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The built-in exception classes can be subclassed to define new exceptions;
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programmers are encouraged to derive new exceptions from the :exc:`Exception`
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class or one of its subclasses, and not from :exc:`BaseException`. More
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information on defining exceptions is available in the Python Tutorial under
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:ref:`tut-userexceptions`.
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When raising (or re-raising) an exception in an :keyword:`except` clause
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