Issue #21864: Remove outdated section about exceptions from the tutorial

Move the still relevant parts of it to the previous
chapter, "Errors and Exceptions".

1 files changed, 0 insertions, 49 deletions

diff --git a/Doc/tutorial/classes.rst b/Doc/tutorial/classes.rst
index 03b77e0..75c79d2 100644
--- a/Doc/tutorial/classes.rst
+++ b/Doc/tutorial/classes.rst
@@ -744,55 +744,6 @@ object with the method :meth:`m`, and ``m.__func__`` is the function object
 corresponding to the method.
 
 
-.. _tut-exceptionclasses:
-
-Exceptions Are Classes Too
-==========================
-
-User-defined exceptions are identified by classes as well.  Using this mechanism
-it is possible to create extensible hierarchies of exceptions.
-
-There are two new valid (semantic) forms for the :keyword:`raise` statement::
-
-   raise Class
-
-   raise Instance
-
-In the first form, ``Class`` must be an instance of :class:`type` or of a
-class derived from it.  The first form is a shorthand for::
-
-   raise Class()
-
-A class in an :keyword:`except` clause is compatible with an exception if it is
-the same class or a base class thereof (but not the other way around --- an
-except clause listing a derived class is not compatible with a base class).  For
-example, the following code will print B, C, D in that order::
-
-   class B(Exception):
-       pass
-   class C(B):
-       pass
-   class D(C):
-       pass
-
-   for cls in [B, C, D]:
-       try:
-           raise cls()
-       except D:
-           print("D")
-       except C:
-           print("C")
-       except B:
-           print("B")
-
-Note that if the except clauses were reversed (with ``except B`` first), it
-would have printed B, B, B --- the first matching except clause is triggered.
-
-When an error message is printed for an unhandled exception, the exception's
-class name is printed, then a colon and a space, and finally the instance
-converted to a string using the built-in function :func:`str`.
-
-
 .. _tut-iterators:
 
 Iterators