% Created 2010-10-21 Thu 14:35 \documentclass[presentation]{beamer} \usepackage[latin1]{inputenc} \usepackage[T1]{fontenc} \usepackage{fixltx2e} \usepackage{graphicx} \usepackage{longtable} \usepackage{float} \usepackage{wrapfig} \usepackage{soul} \usepackage{t1enc} \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} \providecommand{\alert}[1]{\textbf{#1}} \title{Getting started with files} \author{FOSSEE} \date{} \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent} \begin{document} \maketitle \begin{frame} \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} 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} \begin{verbatim} In []: pend_list = pend.splitlines() In []: pend_list \end{verbatim} \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} \begin{verbatim} In []: f = open('/home/fossee/pendulum.txt') \end{verbatim} \end{frame} \begin{frame} \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 \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{frame} \end{document}