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%Tutorial slides on Python.

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% Author: FOSSEE 

% Copyright (c) 2009, FOSSEE, IIT Bombay

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% Title page

\title[Tricks of the trade]{Python for Science and Engg: Tricks of the trade}

\author[FOSSEE] {FOSSEE}

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

\date[] {28 January, 2010\\Day 1, Tricks of the Trade}

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    \frametitle{Outline}

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    \frametitle{Outline}

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% DOCUMENT STARTS

\begin{document}

\begin{frame}

  \maketitle

\end{frame}

%% \begin{frame}

%%   \frametitle{Outline}

%%   \tableofcontents

%%   % You might wish to add the option [pausesections]

%% \end{frame}

\begin{frame}

  \frametitle{Workshop Schedule: Day 1}

  \begin{description}

	\item[Tricks of the trade] Thu 09:00--09:30

	\item[Session 1] Thu 09:30--10:30

	\item[Session 2] Thu 10:45--11:45

	\item[Session 3] Thu 11:50--12:30

	\item[Session 4] Thu 12:30--1:30

        \item[Quiz 1] Thu 14:30--14:45

        \item[Exercises] Thu 14:45--15:30

        \item[Session 5] Thu 15:45--16:45

        \item[Quiz 2] Thu 16:50--17:05

  \end{description}

\end{frame}

\begin{frame}

  \frametitle{Workshop Schedule: Day 2}

  \begin{description}

	\item[Session 1] Fri 09:00--10:00

	\item[Session 2] Fri 10:05--11:05

	\item[Session 3] Fri 11:20--12:20

	\item[Session 4] Fri 12:25--13:25

        \item[Quiz 1]  Fri 14:25--14:40

        \item[Exercises] Fri 14:40--15:25

        \item[Session 5] Fri 15:40--16:40

        \item[Quiz 2]  Fri 16:45--17:00

  \end{description}

\end{frame}

\section{Checklist}

\begin{frame}

\frametitle{Checklist}

  \begin{enumerate}

    \item IPython

    \item Editor

    \item Data files: 

      \begin{itemize}

      \item \typ{sslc1.txt}

      \item \typ{pendulum.txt}

      \item \typ{points.txt}

      \item \typ{pos.txt}

      \item \typ{holmes.txt}

      \end{itemize}

    \item Python scripts: 

      \begin{itemize}

      \item \typ{sslc_allreg.py}

      \item \typ{sslc_science.py}

      \end{itemize}

    \item Images

      \begin{itemize}

      \item \typ{lena.png}

      \item \typ{smoothing.gif}

      \end{itemize}

  \end{enumerate}

\end{frame}

\section{Starting up Ipython}

\begin{frame}[fragile]

\frametitle{Starting up \ldots}

\begin{block}{}

\begin{lstlisting}

  $ ipython -pylab  

\end{lstlisting} %$

\end{block}

\begin{lstlisting}     

  In []: print "Hello, World!"

  Hello, World!

\end{lstlisting}

Exiting

\begin{lstlisting}

  In []: ^D(Ctrl-D)

  Do you really want to exit([y]/n)? y

\end{lstlisting}

\end{frame}

\section{Loops}

\begin{frame}[fragile]

\frametitle{Loops}

Breaking out of loops

\begin{lstlisting}     

  In []: while True:

    ...:     print "Hello, World!"

    ...:     

  Hello, World!

  Hello, World!^C(Ctrl-C)

  ------------------------------------

  KeyboardInterrupt                   

\end{lstlisting}

\end{frame}

\section{Indentation}

\begin{frame}[fragile]

  \frametitle{Indentation}

  \begin{lstlisting}

  In []: while True:

    ...:     print "Hello, World!"

    ...:     

  \end{lstlisting}

\emphbar{\alert{Indentation: Notice the 4 spaces before\\} \typ{print "Hello, World!"}\\

  Hit the ``ENTER'' key twice to return to the previous indentation level}

\end{frame}

\section{Tab Completion}

\begin{frame}[fragile]

  \frametitle{Tab Completion}

  Type \typ{pri} and hit the Tab key

  \begin{lstlisting}

    In []: pri <Tab>

    In []: print

  \end{lstlisting}

  Type \typ{whi} and hit the Tab key

  \begin{lstlisting}

    In []: whi <Tab>

    In []: while

  \end{lstlisting}

\end{frame}

\section{Tab Suggestions}

\begin{frame}[fragile]

  \frametitle{Tab Suggestions}

  \begin{lstlisting}

In []: a = 'Hello world'

In []: a.<Tab>

  \end{lstlisting}

  \ldots

\end{frame}

\section{Command history}

\begin{frame}[fragile]

  \frametitle{Command history}

  \typ{In []:} \alert{$\uparrow$}\\

  \typ{In []: a = 'Hello world'}\\

  \emphbar{The previously entered commands can be browsed using the \alert{$\uparrow$} key.}

\end{frame}

\section{Saving Commands}

\begin{frame}[fragile]

\frametitle{History and Saving of Commands}

\begin{itemize}

\item \typ{\%hist} gives history of commands in a session

\item \typ{\%save} can be used to save the commands

\end{itemize}

\begin{block}{Careful about errors!}

  \kwrd{\%hist} will contain the errors as well,\\

  so be careful while selecting line numbers.

\end{block}

\end{frame}

\section{Editors}

\begin{frame}[fragile]

  \frametitle{Editors}

  The following are some good editors:

  \begin{itemize}

  \item emacs

  \item vim

  \item \alert{scite} - we recommend it

  \end{itemize}

\end{frame}

\section{Scite - How to}

\begin{frame}[fragile]

  \frametitle{Scite - How to \ldots}

  \begin{itemize}

  \item Opening scite

    \begin{itemize}

    \item GNU/Linux: \alert{Applications} $\rightarrow$ \alert{Programming} $\rightarrow$ \alert{SciTE Text Editor}

    \item Windows: Double click on the \alert{SciTE} Desktop icon

    \end{itemize}

  \item Type the contents

  \item Saving the file with a filename \alert{File $\rightarrow$ Save as}

  \item Saving the file  \alert{File $\rightarrow$ Save}

  \item Exiting the editor  \alert{File $\rightarrow$ Exit}

  \item To open an existing file: \alert{File $\rightarrow$ Open}

  \end{itemize}

\end{frame}

\section{Summary}

\begin{frame}[fragile]

  \frametitle{What did we learn?}

  \begin{itemize}

    \item Starting up IPython

    \item Loops - Indentation and breaking out of loops

    \item \kwrd{\%hist} - History of commands

    \item \kwrd{\%save} - Saving commands 

    \item Using SciTE

  \end{itemize}

\end{frame}

\end{document}