200   \item \texttt{python gcd.py}

   200   \item \texttt{python gcd.py}

   201   \item \texttt{python lcm.py}

   201   \item \texttt{python lcm.py}

   202   \end{itemize}

   202   \end{itemize}

   203 \end{frame}

   203 \end{frame}

   204 

   204 

   205 \begin{frame}[fragile]

   222 \begin{frame}[fragile]

   206   \frametitle{Automating tests}

   223   \frametitle{Automating tests}

   207   \begin{lstlisting}

   224   \begin{lstlisting}

   208 if __name__ == '__main__':

   225 if __name__ == '__main__':

   209     for line in open('numbers.txt'):

   226     for line in open('numbers.txt'):

   213         result = int(numbers[2])

   230         result = int(numbers[2])

   214         if gcd(x, y) != result:

   231         if gcd(x, y) != result:

   215             print "Failed gcd test

   232             print "Failed gcd test

   216                           for", x, y

   233                           for", x, y

   217   \end{lstlisting}  

   234   \end{lstlisting}  

   218 \end{frame}

   247 \end{frame}

   219 

   248 

   220 \section{Coding Style}

   249 \section{Coding Style}

   221 \begin{frame}{Readability and Consistency}

   250 \begin{frame}{Readability and Consistency}

   222     \begin{itemize}

   251     \begin{itemize}