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−% Created 2010-10-21 Thu 14:35
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−\documentclass[presentation]{beamer}
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−\usepackage[latin1]{inputenc}
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−\usepackage[T1]{fontenc}
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−\usepackage{fixltx2e}
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−\usepackage{graphicx}
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−\usepackage{longtable}
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−\usepackage{float}
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−\usepackage{wrapfig}
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−\usepackage{soul}
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−\usepackage{t1enc}
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−\usepackage{textcomp}
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−\usepackage{marvosym}
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−\usepackage{wasysym}
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−\usepackage{latexsym}
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−\usepackage{amssymb}
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−\usepackage{hyperref}
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−\tolerance=1000
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−\usepackage[english]{babel} \usepackage{ae,aecompl}
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−\usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet}
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−\usepackage{listings}
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−\lstset{language=Python, basicstyle=\ttfamily\bfseries,
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−commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},
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−showstringspaces=false, keywordstyle=\color{blue}\bfseries}
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−\providecommand{\alert}[1]{\textbf{#1}}
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−
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−\title{Getting started with files}
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−\author{FOSSEE}
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−\date{}
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−
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−\usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}
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−\begin{document}
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−
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−\maketitle
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−
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−
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−
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−
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−
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−
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−
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−
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−
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−\begin{frame}
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−\frametitle{Outline}
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−\label{sec-1}
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−
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−\begin{itemize}
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−\item Opening and reading contents of a file
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−\item Closing open files
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−\item Reading all the contents of the file at once
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−\item Reading files line by line
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−\end{itemize}
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−\end{frame}
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−\begin{frame}
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−\frametitle{Question 1}
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−\label{sec-2}
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−
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−  Split the variable into a list, \texttt{pend\_list}, of the lines in the
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−  file. Hint, use the tab command to see what methods the string
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−  variable has.
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−\end{frame}
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−\begin{frame}[fragile]
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−\frametitle{Solution 1}
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−\label{sec-3}
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−
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−\begin{verbatim}
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−In []: pend_list = pend.splitlines()
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−
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−In []: pend_list
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−\end{verbatim}
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−\end{frame}
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−\begin{frame}
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−\frametitle{Question 2}
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−\label{sec-4}
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−
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−  Re-open the file \texttt{pendulum.txt} with \texttt{f} as the file object.
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−\end{frame}
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−\begin{frame}[fragile]
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−\frametitle{Solution 2}
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−\label{sec-5}
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−
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−\begin{verbatim}
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−In []:   f = open('/home/fossee/pendulum.txt')
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−\end{verbatim}
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−\end{frame}
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−\begin{frame}
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−\frametitle{Summary}
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−\label{sec-6}
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−
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−\begin{itemize}
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−\item Opening a file using \texttt{open} function
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−\item Reading all the contents of the file at once using \texttt{read()} method
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−\item Closing open files using the \texttt{close} method
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−\item Reading files line by line by iterating using a \texttt{for} loop
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−\end{itemize}
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−\end{frame}
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−\begin{frame}
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−\frametitle{Thank you!}
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−\label{sec-7}
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−
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−  \begin{block}{}
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−  \begin{center}
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−  This spoken tutorial has been produced by the
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−  \textcolor{blue}{FOSSEE} team, which is funded by the 
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−  \end{center}
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−  \begin{center}
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−    \textcolor{blue}{National Mission on Education through \\
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−      Information \& Communication Technology \\ 
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−      MHRD, Govt. of India}.
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−  \end{center}  
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−  \end{block}
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−\end{frame}
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−
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−\end{document}