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Diffstat (limited to 'Doc/tutorial/errors.rst')
| -rw-r--r-- | Doc/tutorial/errors.rst | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Doc/tutorial/errors.rst b/Doc/tutorial/errors.rst index 28d6565..d547ef7 100644 --- a/Doc/tutorial/errors.rst +++ b/Doc/tutorial/errors.rst @@ -221,9 +221,11 @@ exception to occur. For example:: File "<stdin>", line 1, in ? NameError: HiThere -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`). +The argument to :keyword:`raise` is an exception class or instance to be +raised. There is a deprecated alternate syntax that separates class and +constructor arguments; the above could be written as ``raise NameError, +'HiThere'``. Since it once was the only one available, the latter form is +prevalent in older code. 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 |