1 \documentclass[12pt]{article}

     2 

     3 

     4 \title{Python: Data Structures}

     5 \author{FOSSEE}

     6 \usepackage{listings}

     7 \lstset{language=Python,

     8     basicstyle=\ttfamily,

     9 commentstyle=\itshape\bfseries, 

    10 showstringspaces=false

    11 }

    12 \newcommand{\typ}[1]{\lstinline{#1}}

    13 \usepackage[english]{babel}

    14 \usepackage[latin1]{inputenc}

    15 \usepackage{times}

    16 \usepackage[T1]{fontenc}

    17 \usepackage{ae,aecompl}

    18 \usepackage{mathpazo,courier,euler}

    19 \usepackage[scaled=.95]{helvet}

    20 

    21 \begin{document}

    22 \date{}

    23 \vspace{-1in}

    24 \begin{center}

    25 \LARGE{Python: Functions and Objects}\\

    26 \large{FOSSEE}

    27 \end{center}

    28 \section{Functions}

    29 Function definition

    30   \begin{lstlisting}

    31 def signum( r ):    

    32     if r < 0:

    33         return -1

    34     elif r > 0:

    35         return 1

    36     else:

    37         return 0

    38   \end{lstlisting}

    39 Default Arguments 

    40 \begin{lstlisting}

    41 def welcome(greet, name='world!'):

    42     print greet, name

    43 \end{lstlisting}

    44 Keyword Arguments

    45 \begin{lstlisting}

    46 In []: plot(y, sin(y), 'g', linewidth=2)

    47 \end{lstlisting}

    48 Self contained python script

    49   \begin{lstlisting}

    50 from scipy import linspace, pi, sin

    51 from pylab import plot, legend, annotate

    52 from pylab import xlim, ylim

    53 

    54 x = linspace(-5*pi, 5*pi, 500)

    55 plot(x, x, 'b')

    56 plot(x, -x, 'b')

    57 plot(x, sin(x), 'g', linewidth=2)

    58 plot(x, x*sin(x), 'r', linewidth=3)

    59 legend(['x', '-x', 'sin(x)', 'xsin(x)'])

    60 annotate('origin', xy = (0, 0))

    61 xlim(-5*pi, 5*pi)

    62 ylim(-5*pi, 5*pi)

    63   \end{lstlisting}

    64 

    65 \end{document}