Print python code using LaTeX as described here: http://pedrokroger.net/2011/04/printing-python-code-with-latex

print_python_code_demo.tex

\documentclass[10pt]{article}
\usepackage[T1]{fontenc}
\usepackage[scaled]{beramono}
\renewcommand*\familydefault{\ttdefault}
\usepackage{listings}

\lstset{
  language=Python,
  showstringspaces=false,
  formfeed=\newpage,
  tabsize=4,
  commentstyle=\itshape,
  basicstyle=\ttfamily,
  morekeywords={models, lambda, forms}
}

\newcommand{\code}[2]{
  \hrulefill
  \subsection*{#1}
  \lstinputlisting{#2}
  \vspace{2em}
}

\begin{document}


\begin{lstlisting}
def factorial(n):
   """The factorial of a number the slow way"""

   # comments are printed in italic
    if n == 0:
        return 1
    else:
        return n * factorial(n-1)
\end{lstlisting}

%% Use this to include files
%% \code{Models}{../testapp/models.py}

\end{document}