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#+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:
#+AUTHOR: FOSSEE
#+DATE: 2010-09-14 Tue
#+EMAIL: info@fossee.in
#+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
*
#+begin_latex
\begin{center}
\vspace{12pt}
\textcolor{blue}{\huge Getting started with Lists}
\end{center}
\vspace{18pt}
\begin{center}
\vspace{10pt}
\includegraphics[scale=0.95]{../images/fossee-logo.png}\\
\vspace{5pt}
\scriptsize Developed by FOSSEE Team, IIT-Bombay. \\
\scriptsize Funded by National Mission on Education through ICT\\
\scriptsize MHRD,Govt. of India\\
\includegraphics[scale=0.30]{../images/iitb-logo.png}\\
\end{center}
#+end_latex
* Objectives
At the end of this tutorial, you will be able to,
- Create lists
- Access list elements
- Append elements to lists
- Delete elements from lists
* Exercise 1
- What happens when you do nonempty[-1].
* Exercise 2
- What is the syntax to get the element 'and'
in the list,listinlist ?
- How would you get 'and' using negative indices?
* Solution 2
#+begin_src python
listinlist[1]
listinlist[-5]
#+end_src python
* Exercise 3
- Remove the third element from the list, listinlist.
- Remove 'and' from the list, listinlist.
* Solution 3
#+begin_src python
del(listinlist[2])
listinlist.remove('and')
#+end_src python
* Summary
In this tutorial, we have learnt to –
- Create lists.
- Access lists using their index numbers.
- Append elements to list using the function ``append``.
- Delete Element from lists by specifying the index number of the
element to be deleted in the ``del`` function.
- Delete element from list by content using ``remove`` function.
- Find out the list length using the ``len`` function.
* Evaluation
1. How do you create an empty list?
2. Can you have a list inside a list ?
3. How would you access the end of a list without finding its length?
* Solutions
1. empty=[]
2. Yes\\
list\_in\_list=[2.3,[2,4,6],'string,'all datatypes can be there']
3. Using negative indices\\
nonempty = ['spam', 'eggs', 100, 1.234]\\
nonempty[-1]
*
#+begin_latex
\begin{block}{}
\begin{center}
\textcolor{blue}{\Large THANK YOU!}
\end{center}
\end{block}
\begin{block}{}
\begin{center}
For more Information, visit our website\\
\url{http://fossee.in/}
\end{center}
\end{block}
#+end_latex
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