Binary file day1/data/filter.png has changed

Binary file day2/DebugginDiagram.png has changed

--- a/day2/session3.tex	Wed Oct 28 13:06:58 2009 +0530
+++ b/day2/session3.tex	Wed Oct 28 14:25:03 2009 +0530
@@ -238,7 +238,7 @@
     \frametitle{Using mlab}
 
     \begin{lstlisting}
->>> from enthought.mayavi import mlab
+In []: from enthought.mayavi import mlab
     \end{lstlisting}
 
     \vspace*{0.5in}
@@ -248,9 +248,9 @@
     \vspace*{0.25in}
 
     \begin{lstlisting}
->>> mlab.test_<TAB>
->>> mlab.test_contour3d()
->>> mlab.test_contour3d??
+In []: mlab.test_<TAB>
+In []: mlab.test_contour3d()
+in []: mlab.test_contour3d??
     \end{lstlisting}
 \end{frame}
 
@@ -279,12 +279,12 @@
     \end{columns}
 
     \begin{lstlisting}
->>> from numpy import *
->>> t = linspace(0, 2*pi, 50)
->>> u = cos(t)*pi
->>> x, y, z = sin(u), cos(u), sin(t)
+In []: from numpy import *
+In []: t = linspace(0, 2*pi, 50)
+In []: u = cos(t) * pi
+in []: x, y, z = sin(u), cos(u), sin(t)
     \end{lstlisting}
-    \emphbar{\PythonCode{>>> mlab.points3d(x, y, z)}}
+    \emphbar{\PythonCode{In []: mlab.points3d(x, y, z)}}
 \end{frame}
 
 \begin{frame}
@@ -294,7 +294,7 @@
         \column{0.5\textwidth}
         \pgfimage[width=2.5in]{MEDIA/m2/mlab/plot3d_ex}
   \end{columns}
-  \emphbar{\PythonCode{>>> mlab.plot3d(x, y, z, t)}}
+  \emphbar{\PythonCode{In []: mlab.plot3d(x, y, z, t)}}
 
     Plots lines between the points
     
@@ -308,11 +308,11 @@
         \pgfimage[width=2in]{MEDIA/m2/mlab/surf_ex}
     \end{columns}            
     \begin{lstlisting}
->>> x, y = mgrid[-3:3:100j,-3:3:100j]
->>> z = sin(x*x + y*y)
+In []: x, y = mgrid[-3:3:100j,-3:3:100j]
+In []: z = sin(x*x + y*y)
     \end{lstlisting}
 
-    \emphbar{\PythonCode{>>> mlab.surf(x, y, z)}}
+    \emphbar{\PythonCode{In []: mlab.surf(x, y, z)}}
 
     \alert{Assumes the points are rectilinear}
 
@@ -322,18 +322,18 @@
     \myemph{\Large 2D data: \texttt{mlab.mesh}}
     \vspace*{0.25in}
 
-    \emphbar{\PythonCode{>>> mlab.mesh(x, y, z)}}
+    \emphbar{\PythonCode{In []: mlab.mesh(x, y, z)}}
 
     \alert{Points needn't be regular}
 
     \vspace*{0.25in}
 \begin{lstlisting}
->>> phi, theta = numpy.mgrid[0:pi:20j, 
+In []: phi, theta = numpy.mgrid[0:pi:20j, 
 ...                         0:2*pi:20j]
->>> x = sin(phi)*cos(theta)
->>> y = sin(phi)*sin(theta)
->>> z = cos(phi)
->>> mlab.mesh(x, y, z, 
+In []: x = sin(phi)*cos(theta)
+In []: y = sin(phi)*sin(theta)
+In []: z = cos(phi)
+In []: mlab.mesh(x, y, z, 
 ...           representation=
 ...           'wireframe')
 \end{lstlisting}
@@ -349,10 +349,10 @@
         \pgfimage[width=1.5in]{MEDIA/m2/mlab/contour3d}\\        
     \end{columns}
 \begin{lstlisting}
->>> x, y, z = ogrid[-5:5:64j, 
+In []: x, y, z = ogrid[-5:5:64j, 
 ...                -5:5:64j, 
 ...                -5:5:64j]
->>> mlab.contour3d(x*x*0.5 + y*y + 
+In []: mlab.contour3d(x*x*0.5 + y*y + 
                    z*z*2)
 \end{lstlisting}
 \end{frame}
@@ -365,7 +365,7 @@
     \pgfimage[width=2in]{MEDIA/m2/mlab/quiver3d_ex}\\
     
 \begin{lstlisting}
->>> mlab.test_quiver3d()
+In []: mlab.test_quiver3d()
 \end{lstlisting}
 
 \emphbar{\PythonCode{obj = mlab.quiver3d(x, y, z, u, v, w)}}
@@ -511,6 +511,13 @@
 
   \end{lstlisting}
 \end{frame}
+
+\begin{frame}
+    \begin{center}
+        \Huge    
+        Thank you!
+    \end{center}
+\end{frame}
   
 \end{document}
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/day2/session4.tex	Wed Oct 28 14:25:03 2009 +0530
@@ -0,0 +1,374 @@
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Tutorial slides on Python.
+%
+% Author: Prabhu Ramachandran <prabhu at aero.iitb.ac.in>
+% Copyright (c) 2005-2009, Prabhu Ramachandran
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\documentclass[compress,14pt]{beamer}
+% \documentclass[handout]{beamer}
+% \usepackage{pgfpages}
+% \pgfpagesuselayout{4 on 1}[a4paper,border, shrink=5mm,landscape]
+\usepackage{tikz}
+\newcommand{\hyperlinkmovie}{}
+%\usepackage{movie15}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Note that in presentation mode 
+% \paperwidth  364.19536pt
+% \paperheight 273.14662pt
+% h/w = 0.888
+
+
+\mode<presentation>
+{
+  \usetheme{Warsaw}
+  %\usetheme{Boadilla}
+  %\usetheme{default}
+  \useoutertheme{split}
+  \setbeamercovered{transparent}
+}
+
+% To remove navigation symbols
+\setbeamertemplate{navigation symbols}{}
+
+\usepackage{amsmath}
+\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}
+\usepackage{pgf}
+
+\definecolor{darkgreen}{rgb}{0,0.5,0}
+
+\usepackage{listings}
+\lstset{language=Python,
+    basicstyle=\ttfamily\bfseries,
+    commentstyle=\color{red}\itshape,
+  stringstyle=\color{darkgreen},
+  showstringspaces=false,
+  keywordstyle=\color{blue}\bfseries}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% My Macros
+\setbeamercolor{postit}{bg=yellow,fg=black}
+\setbeamercolor{emphbar}{bg=blue!20, fg=black}
+\newcommand{\emphbar}[1]
+{\begin{beamercolorbox}[rounded=true]{emphbar} 
+      {#1}
+ \end{beamercolorbox}
+}
+%{\centerline{\fcolorbox{gray!50} {blue!10}{
+%\begin{minipage}{0.9\linewidth}
+%    {#1} 
+%\end{minipage}
+%    }}}
+
+\newcommand{\myemph}[1]{\structure{\emph{#1}}}
+\newcommand{\PythonCode}[1]{\lstinline{#1}}
+
+\newcommand{\tvtk}{\texttt{tvtk}}
+\newcommand{\mlab}{\texttt{mlab}}
+
+\newcounter{time}
+\setcounter{time}{0}
+\newcommand{\inctime}[1]{\addtocounter{time}{#1}{\vspace*{0.1in}\tiny \thetime\ m}}
+
+\newcommand\BackgroundPicture[1]{%
+  \setbeamertemplate{background}{%
+      \parbox[c][\paperheight]{\paperwidth}{%
+      \vfill \hfill
+ \hfill \vfill
+}}}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Configuring the theme
+%\setbeamercolor{normal text}{fg=white}
+%\setbeamercolor{background canvas}{bg=black}
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Title page
+\title[]{Test Driven Approach}
+
+\author[FOSSEE Team] {FOSSEE}
+
+\institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay}
+\date[] {11, October 2009}
+\date[] % (optional)
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%\pgfdeclareimage[height=0.75cm]{iitblogo}{iitblogo}
+%\logo{\pgfuseimage{iitblogo}}
+
+\AtBeginSection[]
+{
+  \begin{frame}<beamer>
+    \frametitle{Outline}
+      \Large
+    \tableofcontents[currentsection,currentsubsection]
+  \end{frame}
+}
+
+%% 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}
+}
+
+\AtBeginSection[]
+{
+  \begin{frame}<beamer>
+    \frametitle{Outline}
+    \tableofcontents[currentsection,currentsubsection]
+  \end{frame}
+}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% DOCUMENT STARTS
+\begin{document}
+
+\begin{frame}
+  \maketitle
+\end{frame}
+
+
+\section{Debugging}
+\subsection{Errors and Exceptions}
+\begin{frame}[fragile]
+ \frametitle{Errors}
+ \begin{lstlisting}
+>>> while True print 'Hello world'
+ \end{lstlisting}
+\pause
+  \begin{lstlisting}
+  File "<stdin>", line 1, in ?
+    while True print 'Hello world'
+                   ^
+SyntaxError: invalid syntax
+\end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
+ \frametitle{Exceptions}
+ \begin{lstlisting}
+>>> print spam
+\end{lstlisting}
+\pause
+\begin{lstlisting}
+Traceback (most recent call last):
+  File "<stdin>", line 1, in <module>
+NameError: name 'spam' is not defined
+\end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
+ \frametitle{Exceptions}
+ \begin{lstlisting}
+>>> 1 / 0
+\end{lstlisting}
+\pause
+\begin{lstlisting}
+Traceback (most recent call last):
+  File "<stdin>", line 1, in <module>
+ZeroDivisionError: integer division 
+or modulo by zero
+\end{lstlisting}
+\end{frame}
+
+\subsection{Strategy}
+\begin{frame}[fragile]
+    \frametitle{Debugging effectively}
+    \begin{itemize}
+        \item \kwrd{print} based strategy
+        \item Process:
+    \end{itemize}
+\pgfimage[interpolate=true,width=5cm,height=5cm]{DebugginDiagram.png}
+\end{frame}
+
+\begin{frame}[fragile]
+    \frametitle{Debugging effectively}
+    \begin{itemize}
+      \item Using \typ{\%debug} in IPython
+    \end{itemize}
+\end{frame}
+
+\begin{frame}[fragile]
+\frametitle{Debugging in IPython}
+\small
+\begin{lstlisting}
+In [1]: import mymodule
+In [2]: mymodule.test()
+---------------------------------------------
+NameError   Traceback (most recent call last)
+<ipython console> in <module>()
+mymodule.py in test()
+      1 def test():
+----> 2     print spam
+NameError: global name 'spam' is not defined
+
+In [3]: %debug
+> mymodule.py(2)test()
+      0     print spam
+ipdb> 
+\end{lstlisting}
+\inctime{15} 
+\end{frame}
+
+\subsection{Exercise}
+\begin{frame}[fragile]
+\frametitle{Debugging: Exercise}
+\small
+\begin{lstlisting}
+import keyword
+f = open('/path/to/file')
+
+freq = {}
+for line in f:
+    words = line.split()
+    for word in words:
+        key = word.strip(',.!;?()[]: ')
+        if keyword.iskeyword(key):
+            value = freq[key]
+            freq[key] = value + 1
+
+print freq
+\end{lstlisting}
+\inctime{10}
+\end{frame}
+
+%% \begin{frame}
+%%     \frametitle{Testing}
+   
+%%     \begin{itemize}
+%%         \item Writing tests is really simple!
+
+%%         \item Using nose.
+
+%%         \item Example!
+%%     \end{itemize}
+%% \end{frame}
+
+\section{Test Driven Approach}
+\begin{frame}
+    \frametitle{Need of Testing!}
+   
+    \begin{itemize}
+        \item Quality
+        \item Regression
+        \item Documentation
+    \end{itemize}
+    %% \vspace*{0.25in}
+    %% \emphbar{It is to assure that section of code is working as it is supposed to work}
+\end{frame}
+
+\begin{frame}[fragile]
+    \frametitle{Example}
+    \begin{block}{Problem Statement}
+      Write a function to check whether a given input
+      string is a palindrome.
+    \end{block}
+\end{frame}
+
+\begin{frame}[fragile]
+    \frametitle{Function: palindrome.py}
+\begin{lstlisting}    
+def is_palindrome(input_str):
+  return input_str == input_str[::-1]
+\end{lstlisting}    
+\end{frame}
+
+\begin{frame}[fragile]
+    \frametitle{Test for the palindrome: palindrome.py}
+\begin{lstlisting}    
+from plaindrome import is_palindrome
+def test_function_normal_words():
+  input = "noon"
+  assert is_palindrome(input) == True
+\end{lstlisting}    
+\end{frame}
+
+\begin{frame}[fragile]
+    \frametitle{Running the tests.}
+\begin{lstlisting}    
+$ nosetests test.py 
+.
+----------------------------------------------
+Ran 1 test in 0.001s
+
+OK
+\end{lstlisting}    
+\end{frame}
+
+\begin{frame}[fragile]
+    \frametitle{Exercise: Including new tests.}
+\begin{lstlisting}    
+def test_function_ignore_cases_words():
+  input = "Noon"
+  assert is_palindrome(input) == True
+\end{lstlisting}
+     \vspace*{0.25in}
+     Check\\
+     \PythonCode{$ nosetests test.py} \\
+     \begin{block}{Task}
+     Tweak the code to pass this test.
+     \end{block}
+\end{frame}
+
+%\begin{frame}[fragile]
+%    \frametitle{Lets write some test!}
+%\begin{lstlisting}    
+%#for form of equation y=mx+c
+%#given m and c for two equation,
+%#finding the intersection point.
+%def intersect(m1,c1,m2,c2):
+%    x = (c2-c1)/(m1-m2)
+%    y = m1*x+c1
+%    return (x,y)
+%\end{lstlisting}
+%
+%Create a simple test for this
+%
+%function which will make it fail.
+%
+%\inctime{15} 
+%\end{frame}
+%
+
+\begin{frame}[fragile]
+    \frametitle{Exercise}
+    Based on Euclid's algorithm:
+    \begin{center}
+    $gcd(a,b)=gcd(b,b\%a)$
+    \end{center}
+    gcd function can be written as:
+    \begin{lstlisting}
+    def gcd(a, b):
+      if a%b == 0: return b
+      return gcd(b, a%b)
+    \end{lstlisting}
+    \vspace*{-0.15in}
+    \begin{block}{Task}
+      \begin{itemize}
+      \item Write at least 
+        two tests for above mentioned function.
+      \item Write a non recursive implementation
+      of gcd(), and test it using already 
+      written tests.
+      \end{itemize}
+    \end{block}
+    
+\inctime{15} 
+\end{frame}
+
+\end{document}

--- a/day2/session5.tex	Wed Oct 28 13:06:58 2009 +0530
+++ b/day2/session5.tex	Wed Oct 28 14:25:03 2009 +0530
@@ -147,14 +147,14 @@
 
 \begin{frame}[fragile]
   \frametitle{Problem set 4}
-  Finite difference
+  Central difference
   \begin{equation*}
-  \frac{sin(x+h)-sin(x)}{h}
+  \frac{sin(x+h)-sin(x-h)}{2h}
   \end{equation*}
   \begin{lstlisting}
-  >>> x = linspace(0,2*pi,100)
-  >>> y = sin(x)
-  >>> deltax = x[1] - x[0]
+  In []: x = linspace(0, 2*pi, 100)
+  In []: y = sin(x)
+  In []: deltax = x[1] - x[0]
   \end{lstlisting}
   \pause
     \begin{enumerate}