505   \begin{lstlisting}

   505   \begin{lstlisting}

   506 In [6]: a.split()

   506 In [6]: a.split()

   507 Out[6]: ['hello', 'world']

   507 Out[6]: ['hello', 'world']

   508 In [7]: ''.join(['a', 'b', 'c'])

   508 In [7]: ''.join(['a', 'b', 'c'])

   509 Out[7]: 'abc'

   509 Out[7]: 'abc'

   511 Out[8]: False

   511 Out[8]: False

   512   \end{lstlisting}

   512   \end{lstlisting}

   513   \begin{block}{Try:}

   513   \begin{block}{Try:}

   514     \texttt{a.split( 'o' )}\\

   514     \texttt{a.split( 'o' )}\\

   515     \texttt{'x'.join( a.split( 'o' ) )}

   515     \texttt{'x'.join( a.split( 'o' ) )}

   516   \end{block}

   516   \end{block}

   517 \end{frame}

   517 \end{frame}

   518 

   518 

   519 \begin{frame}[fragile]\frametitle{String formatting}

   519 \begin{frame}[fragile]\frametitle{String formatting}

   520   \begin{lstlisting}

   520   \begin{lstlisting}

   522 In [12]: 'x is %s, y is %s' %(x, y)

   522 In [12]: 'x is %s, y is %s' %(x, y)

   523 Out[12]: 'x is 1, y is 1.234'

   523 Out[12]: 'x is 1, y is 1.234'

   524   \end{lstlisting}

   524   \end{lstlisting}

   525   \begin{block}{Try:}

   525   \begin{block}{Try:}

   526     \texttt{'x is \%d, y is \%f' \%(x, y) }\\

   526     \texttt{'x is \%d, y is \%f' \%(x, y) }\\

   566 In [21]: a = 7

   566 In [21]: a = 7

   567 In [22]: b = 8

   567 In [22]: b = 8

   568 In [23]: if a > b:

   568 In [23]: if a > b:

   569    ....:    print 'Hello'

   569    ....:    print 'Hello'

   570    ....: else:

   570    ....: else:

   572    ....:

   572    ....:

   573    ....:

   573    ....:

   574 World

   574 World

   575   \end{lstlisting}

   575   \end{lstlisting}

   576   Let us switch to creating a file

   576   Let us switch to creating a file