1 \frametitle {\typ{for}: the list companion}

     2   \begin{lstlisting}

     3 In [89]: for p, ch in enumerate( a ):

     4    ....:     print p, ch

     5    ....:

     6    ....:

     7 0 a

     8 1 b

     9 2 c

    10   \end{lstlisting}

    11 Try: \typ{print enumerate(a)}

    12 \inctime{10}