3 files changed, 170 insertions, 82 deletions
diff --git a/getting-started-files/quickref.tex b/getting-started-files/quickref.tex
index b26d168..17b4d33 100644
--- a/getting-started-files/quickref.tex
+++ b/getting-started-files/quickref.tex
@@ -1,8 +1,12 @@
-Creating a linear array:\\
-{\ex \lstinline|    x = linspace(0, 2*pi, 50)|}
+\textbf{Getting Started -- files}
 
-Plotting two variables:\\
-{\ex \lstinline|    plot(x, sin(x))|}
+\lstinline|f = open('filename')| returns a file object. \lstinline|f|
+can be used to perform further operations on the file. 
+
+\lstinline|f.read()| reads the whole file and returns the contents. 
+
+\lstinline|f.close()| closes the file. 
+
+\lstinline|for line in open('filename'):| -- iterate over the file
+line-by-line. 
 
-Plotting two lists of equal length x, y:\\
-{\ex \lstinline|    plot(x, y)|}
diff --git a/getting-started-files/slides.org b/getting-started-files/slides.org
new file mode 100644
index 0000000..d9e6428
--- /dev/null
+++ b/getting-started-files/slides.org
@@ -0,0 +1,73 @@
+#+LaTeX_CLASS: beamer
+#+LaTeX_CLASS_OPTIONS: [presentation]
+#+BEAMER_FRAME_LEVEL: 1
+
+#+BEAMER_HEADER_EXTRA: \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}
+#+COLUMNS: %45ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Env Args) %4BEAMER_col(Col) %8BEAMER_extra(Extra)
+#+PROPERTY: BEAMER_col_ALL 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 :ETC
+
+#+LaTeX_CLASS: beamer
+#+LaTeX_CLASS_OPTIONS: [presentation]
+
+#+LaTeX_HEADER: \usepackage[english]{babel} \usepackage{ae,aecompl}
+#+LaTeX_HEADER: \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet}
+
+#+LaTeX_HEADER: \usepackage{listings}
+
+#+LaTeX_HEADER:\lstset{language=Python, basicstyle=\ttfamily\bfseries,
+#+LaTeX_HEADER:  commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},
+#+LaTeX_HEADER:  showstringspaces=false, keywordstyle=\color{blue}\bfseries}
+
+#+TITLE:    Getting started with files
+#+AUTHOR:    FOSSEE
+#+EMAIL:     
+#+DATE:    
+
+#+DESCRIPTION: 
+#+KEYWORDS: 
+#+LANGUAGE:  en
+#+OPTIONS:   H:3 num:nil toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
+#+OPTIONS:   TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc
+
+* Outline
+  - Opening and reading contents of a file
+  - Closing open files
+  - Reading all the contents of the file at once
+  - Reading files line by line
+* Question 1
+  Split the variable into a list, =pend_list=, of the lines in the
+  file. Hint, use the tab command to see what methods the string
+  variable has.
+* Solution 1
+  #+begin_src python
+    In []: pend_list = pend.splitlines()
+    
+    In []: pend_list
+  #+end_src
+* Question 2
+  Re-open the file =pendulum.txt= with =f= as the file object.
+* Solution 2
+  #+begin_src python
+    In []:   f = open('/home/fossee/pendulum.txt')
+  #+end_src
+* Summary
+  - Opening a file using =open= function
+  - Reading all the contents of the file at once using =read()= method
+  - Closing open files using the =close= method
+  - Reading files line by line by iterating using a =for= loop
+* Thank you!
+#+begin_latex
+  \begin{block}{}
+  \begin{center}
+  This spoken tutorial has been produced by the
+  \textcolor{blue}{FOSSEE} team, which is funded by the 
+  \end{center}
+  \begin{center}
+    \textcolor{blue}{National Mission on Education through \\
+      Information \& Communication Technology \\ 
+      MHRD, Govt. of India}.
+  \end{center}  
+  \end{block}
+#+end_latex
+
+
diff --git a/getting-started-files/slides.tex b/getting-started-files/slides.tex
index df1462c..f82d946 100644
--- a/getting-started-files/slides.tex
+++ b/getting-started-files/slides.tex
@@ -1,95 +1,106 @@
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%Tutorial slides on Python.
-%
-% Author: FOSSEE 
-% Copyright (c) 2009, FOSSEE, IIT Bombay
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-\documentclass[14pt,compress]{beamer}
-%\documentclass[draft]{beamer}
-%\documentclass[compress,handout]{beamer}
-%\usepackage{pgfpages} 
-%\pgfpagesuselayout{2 on 1}[a4paper,border shrink=5mm]
-
-% Modified from: generic-ornate-15min-45min.de.tex
-\mode<presentation>
-{
-  \usetheme{Warsaw}
-  \useoutertheme{infolines}
-  \setbeamercovered{transparent}
-}
-
-\usepackage[english]{babel}
+% Created 2010-10-10 Sun 17:51
+\documentclass[presentation]{beamer}
 \usepackage[latin1]{inputenc}
-%\usepackage{times}
 \usepackage[T1]{fontenc}
-
-\usepackage{ae,aecompl}
-\usepackage{mathpazo,courier,euler}
-\usepackage[scaled=.95]{helvet}
-
-\definecolor{darkgreen}{rgb}{0,0.5,0}
-
+\usepackage{fixltx2e}
+\usepackage{graphicx}
+\usepackage{longtable}
+\usepackage{float}
+\usepackage{wrapfig}
+\usepackage{soul}
+\usepackage{textcomp}
+\usepackage{marvosym}
+\usepackage{wasysym}
+\usepackage{latexsym}
+\usepackage{amssymb}
+\usepackage{hyperref}
+\tolerance=1000
+\usepackage[english]{babel} \usepackage{ae,aecompl}
+\usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet}
 \usepackage{listings}
-\lstset{language=Python,
-    basicstyle=\ttfamily\bfseries,
-    commentstyle=\color{red}\itshape,
-  stringstyle=\color{darkgreen},
-  showstringspaces=false,
-  keywordstyle=\color{blue}\bfseries}
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% Macros
-\setbeamercolor{emphbar}{bg=blue!20, fg=black}
-\newcommand{\emphbar}[1]
-{\begin{beamercolorbox}[rounded=true]{emphbar} 
-      {#1}
- \end{beamercolorbox}
-}
-\newcounter{time}
-\setcounter{time}{0}
-\newcommand{\inctime}[1]{\addtocounter{time}{#1}{\tiny \thetime\ m}}
-
-\newcommand{\typ}[1]{\lstinline{#1}}
-
-\newcommand{\kwrd}[1]{ \texttt{\textbf{\color{blue}{#1}}}  }
-
-% Title page
-\title{Your Title Here}
-
-\author[FOSSEE] {FOSSEE}
-
-\institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay}
+\lstset{language=Python, basicstyle=\ttfamily\bfseries,
+commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},
+showstringspaces=false, keywordstyle=\color{blue}\bfseries}
+\providecommand{\alert}[1]{\textbf{#1}}
+
+\title{Getting started with files}
+\author{FOSSEE}
 \date{}
 
-% DOCUMENT STARTS
+\usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}
 \begin{document}
 
+\maketitle
+
+
+
+
+
+
+
+
+
+
 \begin{frame}
-  \maketitle
+\frametitle{Outline}
+\label{sec-1}
+
+\begin{itemize}
+\item Opening and reading contents of a file
+\item Closing open files
+\item Reading all the contents of the file at once
+\item Reading files line by line
+\end{itemize}
 \end{frame}
+\begin{frame}
+\frametitle{Question 1}
+\label{sec-2}
 
-\begin{frame}[fragile]
-  \frametitle{Outline}
-  \begin{itemize}
-    \item 
-  \end{itemize}
+  Split the variable into a list, \texttt{pend\_list}, of the lines in the
+  file. Hint, use the tab command to see what methods the string
+  variable has.
 \end{frame}
+\begin{frame}[fragile]
+\frametitle{Solution 1}
+\label{sec-3}
 
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%              All other slides here.                  %%
-%% The same slides will be used in a classroom setting. %% 
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\lstset{language=Python}
+\begin{lstlisting}
+In []: pend_list = pend.splitlines()
 
-\begin{frame}[fragile]
-  \frametitle{Summary}
-  \begin{itemize}
-    \item 
-  \end{itemize}
+In []: pend_list
+\end{lstlisting}
 \end{frame}
+\begin{frame}
+\frametitle{Question 2}
+\label{sec-4}
 
+  Re-open the file \texttt{pendulum.txt} with \texttt{f} as the file object.
+\end{frame}
+\begin{frame}[fragile]
+\frametitle{Solution 2}
+\label{sec-5}
+
+\lstset{language=Python}
+\begin{lstlisting}
+In []:   f = open('/home/fossee/pendulum.txt')
+\end{lstlisting}
+\end{frame}
 \begin{frame}
-  \frametitle{Thank you!}  
+\frametitle{Summary}
+\label{sec-6}
+
+\begin{itemize}
+\item Opening a file using \texttt{open} function
+\item Reading all the contents of the file at once using \texttt{read()} method
+\item Closing open files using the \texttt{close} method
+\item Reading files line by line by iterating using a \texttt{for} loop
+\end{itemize}
+\end{frame}
+\begin{frame}
+\frametitle{Thank you!}
+\label{sec-7}
+
   \begin{block}{}
   \begin{center}
   This spoken tutorial has been produced by the