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#7590: exception classes no longer are in the "exceptions" module. Also clean up text that was written with string exceptions in mind.

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Georg Brandl 2009-12-29 21:38:35 +00:00
parent e82ac51cd6
commit fbd1b2203d
1 changed files with 5 additions and 13 deletions
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18
Doc/library/exceptions.rst
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@ -3,20 +3,12 @@
Built-in Exceptions
===================
.. module:: exceptions
:synopsis: Standard exception classes.
Exceptions should be class objects. The exceptions are defined in the module
:mod:`exceptions`. This module never needs to be imported explicitly: the
exceptions are provided in the built-in namespace as well as the
:mod:`exceptions` module.
.. index::
statement: try
statement: except
For class exceptions, in a :keyword:`try` statement with an :keyword:`except`
In Python, all exceptions must be instances of a class that derives from
:class:`BaseException`. In a :keyword:`try` statement with an :keyword:`except`
clause that mentions a particular class, that clause also handles any exception
classes derived from that class (but not exception classes from which *it* is
derived). Two exception classes that are not related via subclassing are never
@ -44,7 +36,7 @@ programmers are encouraged to at least derive new exceptions from the
defining exceptions is available in the Python Tutorial under
:ref:`tut-userexceptions`.
The following exceptions are only used as base classes for other exceptions.
The following exceptions are used mostly as base classes for other exceptions.
.. XXX document with_traceback()
@ -99,8 +91,8 @@ The following exceptions are only used as base classes for other exceptions.
In this last case, :attr:`args` contains the verbatim constructor arguments as a
tuple.
The following exceptions are the exceptions that are actually raised.
The following exceptions are the exceptions that are usually raised.
.. exception:: AssertionError
@ -369,10 +361,10 @@ The following exceptions are the exceptions that are actually raised.
associated value is a string indicating the type of the operands and the
operation.
The following exceptions are used as warning categories; see the :mod:`warnings`
module for more information.
.. exception:: Warning
Base class for warning categories.