\documentclass[12pt]{article}


\title{Python: Data Structures}
\author{FOSSEE}
\usepackage{listings}
\lstset{language=Python,
    basicstyle=\ttfamily,
commentstyle=\itshape\bfseries, 
showstringspaces=false
}
\newcommand{\typ}[1]{\lstinline{#1}}
\usepackage[english]{babel}
\usepackage[latin1]{inputenc}
\usepackage{times}
\usepackage[T1]{fontenc}
\usepackage{ae,aecompl}
\usepackage{mathpazo,courier,euler}
\usepackage[scaled=.95]{helvet}

\begin{document}
\date{}
\vspace{-1in}
\begin{center}
\LARGE{Python: Data Structures}\\
\large{FOSSEE}
\end{center}
\section{Basic Looping}
\typ{while}
  \begin{lstlisting}
In []: a, b = 0, 1
In []: while b < 10:
  ...:     print b,
  ...:     a, b = b, a + b # Fibonacci Sequence
\end{lstlisting}
\typ{for} and \typ{range}\\
\typ{range([start,] stop[, step])}
\begin{lstlisting}
In []: for i in range(3, 10, 2):
 ....:     print i, i * i
3 9
5 25
7 49
9 81
\end{lstlisting}
List methods (Contd.)
\begin{lstlisting}
In []: num = [1, 2, 3, 4]
In []: num.append([9, 10, 11])
In []: num
Out[]: [1, 2, 3, 4, [9, 10, 11]]
In []: num = [1, 2, 3, 4]
In []: num.extend([5, 6, 7])
In []: num
Out[]: [1, 2, 3, 4, 5, 6, 7]
In []: num.reverse()
In []: num
Out[]: [7, 6, 5, 4, 3, 2, 1]
In []: num.remove(6)
In []: num
\end{lstlisting}
Slicing: \typ{list[initial:final:step]}
\begin{lstlisting}
In []: a[1:-1:2]
Out[]: [2, 4]
In []: a[::2]
Out[]: [1, 3, 5]
In []: a[-1::-1]
Out[]: [5, 4, 3, 2, 1]
\end{lstlisting}
Tuples(Immutable lists)
\begin{lstlisting}
In []: t = (1, 2, 3, 4, 5, 6, 7, 8)
In []: t[0] + t[3] + t[-1]
Out[]: 13
In []: t[4] = 7 # ERROR: tuples are immutable
\end{lstlisting}
Sets
\begin{lstlisting}
In []: f = set([1,2,3,5,8])
In []: p = set([2,3,5,7])
In []: f | p # Union of two sets
Out[]: set([1, 2, 3, 5, 7, 8])
In []: g = set([2, 4, 5, 7, 4, 0, 5])
In []: g
Out[]: set([2, 4, 5, 7, 0]) # No repetition allowed.
\end{lstlisting}
\end{document}