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% Tutorial slides on Python.

%

% Author: Prabhu Ramachandran <prabhu at aero.iitb.ac.in>

% Copyright (c) 2005-2008, Prabhu Ramachandran

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\documentclass[14pt,compress]{beamer}

%\documentclass[draft]{beamer}

%\documentclass[compress,handout]{beamer}

%\usepackage{pgfpages} 

%\pgfpagesuselayout{2 on 1}[a4paper,border shrink=5mm]

% Modified from: generic-ornate-15min-45min.de.tex

\mode<presentation>

{

  \usetheme{Warsaw}

  \useoutertheme{split}

  \setbeamercovered{transparent}

}

\usepackage[english]{babel}

\usepackage[latin1]{inputenc}

%\usepackage{times}

\usepackage[T1]{fontenc}

% Taken from Fernando's slides.

\usepackage{ae,aecompl}

\usepackage{mathpazo,courier,euler}

\usepackage[scaled=.95]{helvet}

\definecolor{darkgreen}{rgb}{0,0.5,0}

\usepackage{listings}

\lstset{language=Python,

    commentstyle=\color{red}\itshape,

  stringstyle=\color{darkgreen},

  showstringspaces=false,

  keywordstyle=\color{blue}\bfseries}

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% Macros

\setbeamercolor{emphbar}{bg=blue!20, fg=black}

\newcommand{\emphbar}[1]

{\begin{beamercolorbox}[rounded=true]{emphbar} 

      {#1}

 \end{beamercolorbox}

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\newcommand{\typ}[1]{\texttt{#1}}

\newcommand{\kwrd}[1]{ \texttt{\textbf{\color{blue}{#1}}}  }

%%% This is from Fernando's setup.

% \usepackage{color}

% \definecolor{orange}{cmyk}{0,0.4,0.8,0.2}

% % Use and configure listings package for nicely formatted code

% \usepackage{listings}

% \lstset{

%    language=Python,

%    basicstyle=\small\ttfamily,

%    commentstyle=\ttfamily\color{blue},

%    stringstyle=\ttfamily\color{orange},

%    showstringspaces=false,

%    breaklines=true,

%    postbreak = \space\dots

% }

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% Title page

\title[Basic Python]{Python:\\A great programming toolkit}

\author[Asokan \& Prabhu] {Asokan Pichai\\Prabhu Ramachandran}

\institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay}

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%\pgfdeclareimage[height=0.75cm]{iitmlogo}{iitmlogo}

%\logo{\pgfuseimage{iitmlogo}}

%% Delete this, if you do not want the table of contents to pop up at

%% the beginning of each subsection:

\AtBeginSubsection[]

{

  \begin{frame}<beamer>

    \frametitle{Outline}

    \tableofcontents[currentsection,currentsubsection]

  \end{frame}

}

% If you wish to uncover everything in a step-wise fashion, uncomment

% the following command: 

%\beamerdefaultoverlayspecification{<+->}

%\includeonlyframes{current,current1,current2,current3,current4,current5,current6}

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% DOCUMENT STARTS

\begin{document}

\begin{frame}

  \titlepage

\end{frame}

\section{Python}

  \begin{itemize}

  \end{itemize}

\end{frame}

  \begin{itemize}

  \end{itemize}

\end{frame}

\end{frame}

\begin{frame}[fragile]

\end{lstlisting}

\end{frame}

\begin{frame}[fragile]

True

\end{lstlisting}

\end{frame}

\end{frame}

\begin{frame}[fragile]

    \begin{itemize}

      \end{itemize}

\end{frame}

\begin{frame}[fragile]

  \begin{lstlisting}

    while True:

        ok = raw_input(prompt)

        if ok in ('y', 'ye', 'yes'): 

            return True

            return False

        retries = retries - 1

        if retries < 0: 

            raise IOError, 'bad user'

        print complaint

  \end{lstlisting}

\end{frame}

\begin{frame}[fragile]

  \frametitle{Functions: keyword arguments}

  \begin{lstlisting}

def parrot(voltage, state='a stiff', 

    print "-- This parrot wouldn't", action,

    print "-- Lovely plumage, the", type

    print "-- It's", state, "!"

parrot(1000)

parrot(action = 'VOOOOOM', voltage = 1000000)

parrot('a million', 'bereft of life', 'jump')

\end{lstlisting}

\end{frame}

\begin{frame}[fragile]

  \frametitle{Functions: arbitrary argument lists}

  \begin{itemize}

  \item Arbitrary number of arguments using \verb+*args+ or

    \verb+*whatever+

  \item Keyword arguments using \verb+**kw+

  \item Given a tuple/dict how do you call a function?

    \begin{itemize}

    \item Using argument unpacking

    \item For positional arguments: \verb+foo(*[5, 10])+

    \item For keyword args: \verb+foo(**{'a':5, 'b':10})+

    \end{itemize}

  \end{itemize}

\begin{lstlisting}

def foo(a=10, b=100):

    print a, b

def func(*args, **keyword):

    print args, keyword

# Unpacking:

args = [5, 10]

foo(*args)

kw = {'a':5, 'b':10}

foo(**kw)

\end{lstlisting}

\end{frame}

\begin{frame}[fragile]

\end{frame}

\begin{frame}[fragile]

\end{lstlisting}

\end{frame}

\begin{frame}[fragile]

\end{lstlisting}

\end{frame}

\begin{frame}[fragile]

    \begin{itemize}

    \end{itemize}

\end{frame}

\begin{frame}[fragile]

\begin{lstlisting}

\end{lstlisting}

\end{frame}

\begin{frame}[fragile]

\begin{lstlisting}

\end{lstlisting}

\end{frame}

\begin{frame}[fragile]

\end{frame}

\end{document}