\end{classdesc}
-\subsection{Set Objects}
+\subsection{Set Objects \label{set-objects}}
Instances of \class{Set} and \class{ImmutableSet} both provide
the following operations:
\hline
\lineii{\var{s}.add(\var{x})}
- {Add element \var{x} to set \var{s}}
+ {add element \var{x} to set \var{s}}
\lineii{\var{s}.remove(\var{x})}
- {Remove element \var{x} from set \var{s}}
+ {remove \var{x} from set \var{s}}
\lineii{\var{s}.discard(\var{x})}
- {Removes element \var{x} from set \var{s}. Like \var{s}.remove(\var{x})
- but does not raise KeyError if \var{x} is not in \var{s}}
+ {removes \var{x} from set \var{s} if present}
\lineii{\var{s}.pop()}
- {Remove and return an element from \var{s}; no guarantee is
- made about which element is removed}
+ {remove and return an arbitrary element from \var{s}}
\lineii{\var{s}.update(\var{t})}
- {Add elements from \var{t} to set \var{s}}
+ {add elements from \var{t} to set \var{s}}
\lineii{\var{s}.clear()}
- {Remove all elements from set \var{s}}
+ {remove all elements from set \var{s}}
\end{tableii}
-\subsection{Example}
+\subsection{Example \label{set-example}}
\begin{verbatim}
>>> from sets import Set