typical applications prefer to drop bits than raise an exception.
\end{excdesc}
+\begin{excdesc}{ReferenceError}
+ This exception is raised when a weak reference proxy, created by the
+ \function{\refmodule{weakref}.proxy()} function, is used to access
+ an attribute of the referent after it has been garbage collected.
+ For more information on weak references, see the \refmodule{weakref}
+ module.
+ \versionadded[Previously known as the
+ \exception{\refmodule{weakref}.ReferenceError}
+ exception]{2.2}
+\end{excdesc}
+
\begin{excdesc}{RuntimeError}
Raised when an error is detected that doesn't fall in any of the
other categories. The associated value is a string indicating what
\begin{excdesc}{ReferenceError}
Exception raised when a proxy object is used but the underlying
- object has been collected.
+ object has been collected. This is the same as the standard
+ \exception{ReferenceError} exception.
\end{excdesc}