Mercurial > cpython-lru_cache-weakref
diff Doc/tutorial/errors.rst @ 43308:b27d349162bd
More two-argument raise cleanup in the tutorial.
| author | Collin Winter <collinw@gmail.com> |
|---|---|
| date | Mon, 10 Sep 2007 00:36:57 +0000 |
| parents | 875052c2b7b3 |
| children | 09287f2055ab |
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--- a/Doc/tutorial/errors.rst Mon Sep 10 00:32:45 2007 +0000 +++ b/Doc/tutorial/errors.rst Mon Sep 10 00:36:57 2007 +0000 @@ -221,10 +221,9 @@ File "<stdin>", line 1, in ? NameError: HiThere -The first argument to :keyword:`raise` names the exception to be raised. The -optional second argument specifies the exception's argument. Alternatively, the -above could be written as ``raise NameError('HiThere')``. Either form works -fine, but there seems to be a growing stylistic preference for the latter. +The sole argument to :keyword:`raise` indicates the exception to be raised. +This must be either an exception instance or an exception class (a class that +derives from :class:`Exception`). If you need to determine whether an exception was raised but don't intend to handle it, a simpler form of the :keyword:`raise` statement allows you to