getting-started-files/slides.org
author anand
Thu, 11 Nov 2010 00:03:57 +0530
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permissions -rw-r--r--
Checklist OK for `The other kinds of plots`
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#+LaTeX_CLASS: beamer
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#+LaTeX_CLASS_OPTIONS: [presentation]
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#+BEAMER_FRAME_LEVEL: 1
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#+BEAMER_HEADER_EXTRA: \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent}
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#+COLUMNS: %45ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Env Args) %4BEAMER_col(Col) %8BEAMER_extra(Extra)
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#+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
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#+LaTeX_CLASS: beamer
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#+LaTeX_CLASS_OPTIONS: [presentation]
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#+LaTeX_HEADER: \usepackage[english]{babel} \usepackage{ae,aecompl}
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#+LaTeX_HEADER: \usepackage{mathpazo,courier,euler} \usepackage[scaled=.95]{helvet}
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#+LaTeX_HEADER: \usepackage{listings}
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#+LaTeX_HEADER:\lstset{language=Python, basicstyle=\ttfamily\bfseries,
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#+LaTeX_HEADER:  commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen},
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#+LaTeX_HEADER:  showstringspaces=false, keywordstyle=\color{blue}\bfseries}
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#+TITLE:    Getting started with files
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#+AUTHOR:    FOSSEE
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#+EMAIL:     
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#+DATE:    
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#+DESCRIPTION: 
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#+KEYWORDS: 
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#+LANGUAGE:  en
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#+OPTIONS:   H:3 num:nil toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
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#+OPTIONS:   TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc
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* Outline
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  - Opening and reading contents of a file
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  - Closing open files
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  - Reading all the contents of the file at once
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  - Reading files line by line
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* Question 1
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  Split the variable into a list, =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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* Solution 1
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  #+begin_src python
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    In []: pend_list = pend.splitlines()
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    In []: pend_list
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  #+end_src
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* Question 2
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  Re-open the file =pendulum.txt= with =f= as the file object.
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* Solution 2
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  #+begin_src python
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    In []:   f = open('/home/fossee/pendulum.txt')
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  #+end_src
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* Summary
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  - Opening a file using =open= function
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  - Reading all the contents of the file at once using =read()= method
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  - Closing open files using the =close= method
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  - Reading files line by line by iterating using a =for= loop
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* Thank you!
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#+begin_latex
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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_latex
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