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     1 % Created 2010-10-10 Sun 17:51

     2 %Tutorial slides on Python.

     2 \documentclass[presentation]{beamer}

     3 %

     3 \usepackage[latin1]{inputenc}

     4 % Author: FOSSEE 

     4 \usepackage[T1]{fontenc}

     5 % Copyright (c) 2009, FOSSEE, IIT Bombay

     5 \usepackage{fixltx2e}

     6 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

     6 \usepackage{graphicx}

     7 \usepackage{longtable}

     8 \usepackage{float}

     9 \usepackage{wrapfig}

    10 \usepackage{soul}

    11 \usepackage{textcomp}

    12 \usepackage{marvosym}

    13 \usepackage{wasysym}

    14 \usepackage{latexsym}

    15 \usepackage{amssymb}

    16 \usepackage{hyperref}

    17 \tolerance=1000

    18 \usepackage[english]{babel} \usepackage{ae,aecompl}

    19 \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet}

    20 \usepackage{listings}

    21 \lstset{language=Python, basicstyle=\ttfamily\bfseries,

    22 commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},

    23 showstringspaces=false, keywordstyle=\color{blue}\bfseries}

    24 \providecommand{\alert}[1]{\textbf{#1}}

     8 \documentclass[14pt,compress]{beamer}

    26 \title{Getting started with files}

     9 %\documentclass[draft]{beamer}

    27 \author{FOSSEE}

    10 %\documentclass[compress,handout]{beamer}

    11 %\usepackage{pgfpages} 

    12 %\pgfpagesuselayout{2 on 1}[a4paper,border shrink=5mm]

    13 

    14 % Modified from: generic-ornate-15min-45min.de.tex

    15 \mode<presentation>

    16 {

    17   \usetheme{Warsaw}

    18   \useoutertheme{infolines}

    19   \setbeamercovered{transparent}

    20 }

    21 

    22 \usepackage[english]{babel}

    23 \usepackage[latin1]{inputenc}

    24 %\usepackage{times}

    25 \usepackage[T1]{fontenc}

    26 

    27 \usepackage{ae,aecompl}

    28 \usepackage{mathpazo,courier,euler}

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

    30 

    31 \definecolor{darkgreen}{rgb}{0,0.5,0}

    32 

    33 \usepackage{listings}

    34 \lstset{language=Python,

    35     basicstyle=\ttfamily\bfseries,

    36     commentstyle=\color{red}\itshape,

    37   stringstyle=\color{darkgreen},

    38   showstringspaces=false,

    39   keywordstyle=\color{blue}\bfseries}

    40 

    41 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

    42 % Macros

    43 \setbeamercolor{emphbar}{bg=blue!20, fg=black}

    44 \newcommand{\emphbar}[1]

    45 {\begin{beamercolorbox}[rounded=true]{emphbar} 

    46       {#1}

    47  \end{beamercolorbox}

    48 }

    49 \newcounter{time}

    50 \setcounter{time}{0}

    51 \newcommand{\inctime}[1]{\addtocounter{time}{#1}{\tiny \thetime\ m}}

    52 

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

    54 

    55 \newcommand{\kwrd}[1]{ \texttt{\textbf{\color{blue}{#1}}}  }

    56 

    57 % Title page

    58 \title{Your Title Here}

    59 

    60 \author[FOSSEE] {FOSSEE}

    61 

    62 \institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay}

    65 % DOCUMENT STARTS

    30 \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}

    68 \begin{frame}

    33 \maketitle

    69   \maketitle

    70 \end{frame}

    84 \begin{frame}[fragile]

    37 

    85   \frametitle{Summary}

    38 

    86   \begin{itemize}

    39 

    87     \item 

    40 

    88   \end{itemize}

    41 

    89 \end{frame}

    42 

    92   \frametitle{Thank you!}  

    45 \frametitle{Outline}

    46 \label{sec-1}

    47 

    48 \begin{itemize}

    49 \item Opening and reading contents of a file

    50 \item Closing open files

    51 \item Reading all the contents of the file at once

    52 \item Reading files line by line

    53 \end{itemize}

    54 \end{frame}

    55 \begin{frame}

    56 \frametitle{Question 1}

    57 \label{sec-2}

    58 

    59   Split the variable into a list, \texttt{pend\_list}, of the lines in the

    60   file. Hint, use the tab command to see what methods the string

    61   variable has.

    62 \end{frame}

    63 \begin{frame}[fragile]

    64 \frametitle{Solution 1}

    65 \label{sec-3}

    66 

    67 \lstset{language=Python}

    68 \begin{lstlisting}

    69 In []: pend_list = pend.splitlines()

    70 

    71 In []: pend_list

    72 \end{lstlisting}

    73 \end{frame}

    74 \begin{frame}

    75 \frametitle{Question 2}

    76 \label{sec-4}

    77 

    78   Re-open the file \texttt{pendulum.txt} with \texttt{f} as the file object.

    79 \end{frame}

    80 \begin{frame}[fragile]

    81 \frametitle{Solution 2}

    82 \label{sec-5}

    83 

    84 \lstset{language=Python}

    85 \begin{lstlisting}

    86 In []:   f = open('/home/fossee/pendulum.txt')

    87 \end{lstlisting}

    88 \end{frame}

    89 \begin{frame}

    90 \frametitle{Summary}

    91 \label{sec-6}

    92 

    93 \begin{itemize}

    94 \item Opening a file using \texttt{open} function

    95 \item Reading all the contents of the file at once using \texttt{read()} method

    96 \item Closing open files using the \texttt{close} method

    97 \item Reading files line by line by iterating using a \texttt{for} loop

    98 \end{itemize}

    99 \end{frame}

   100 \begin{frame}

   101 \frametitle{Thank you!}

   102 \label{sec-7}

   103