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Diffstat (limited to 'day1/Session-3.tex')
| -rwxr-xr-x | day1/Session-3.tex | 144 |
1 files changed, 114 insertions, 30 deletions
diff --git a/day1/Session-3.tex b/day1/Session-3.tex index 0a6cf81..d518781 100755 --- a/day1/Session-3.tex +++ b/day1/Session-3.tex @@ -33,7 +33,7 @@ \usepackage{listings} \lstset{language=Python, - basicstyle=\ttfamily, + basicstyle=\ttfamily\bfseries, commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen}, showstringspaces=false, @@ -86,12 +86,12 @@ %% Delete this, if you do not want the table of contents to pop up at -%% the beginning of each subsection: -\AtBeginSubsection[] +%% the beginning of each section: +\AtBeginSection[] { \begin{frame}<beamer> \frametitle{Outline} - \tableofcontents[currentsection,currentsubsection] + \tableofcontents[currentsection] \end{frame} } @@ -110,19 +110,15 @@ \titlepage \end{frame} -\begin{frame} - \frametitle{Outline} - \tableofcontents - % You might wish to add the option [pausesections] -\end{frame} - -\section{Python} +\section{\typ{for}, Lists and Tuples} -\subsection{Problem Set based on Lists and Tuples} - -\begin{frame} - {Problem set 3} - As you can guess, idea is to use \kwrd{for}! +\begin{frame}{Quick Recap} + \begin{itemize} + \item List indexing and slicing + \item The \kwrd{range()} function + \item \kwrd{for} + \item Iterating lists and tuples using \kwrd{for} and \kwrd{range()} + \end{itemize} \end{frame} \begin{frame}{Problem 3.1} @@ -149,7 +145,7 @@ \end{frame} \begin{frame}[fragile] - \frametitle{Problem 3.4a (optional)} + \frametitle{Problem 3.4} Use the \typ{linspace} function and generate a list of N tuples of the form\\ \typ{[($x_1$,f($x_1$)),($x_2$,f($x_2$)),\ldots,($x_N$,f($x_N$))]}\\for the following functions,\begin{itemize} @@ -159,7 +155,7 @@ Use the \typ{linspace} function and generate a list of N tuples of the form\\ \end{frame} \begin{frame}[fragile] - \frametitle{Problem 3.4b (optional)} + \frametitle{Problem 3.5} Using the tuples generated earlier, determine the intervals where the roots of the functions lie. @@ -170,7 +166,7 @@ Use the \typ{linspace} function and generate a list of N tuples of the form\\ % TIME: 15 m, running 185m %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -\subsection{IO} +\section{Parsing} \begin{frame}[fragile] \frametitle{Simple tokenizing and parsing} @@ -190,6 +186,8 @@ for word in s.split(): \end{lstlisting} \end{frame} +\section{Input/Output} + \begin{frame}[fragile] \frametitle{File handling} \begin{lstlisting} @@ -213,13 +211,59 @@ Writing files \begin{frame}[fragile] \frametitle{File and \kwrd{for}} \begin{lstlisting} ->>> f = open('/path/to/file_name') +$ cat dummyfile +One 1 +Two 2 +Three 3 +Four 4 +Five 5 +Six 6 +Seven 7 +Eight 8 +Nine 9 +Ten 10 +\end{lstlisting} +\end{frame} + +\begin{frame}[fragile] + \frametitle{File and \kwrd{for}} +\begin{lstlisting} +>>> f = open('dummyfile') >>> for line in f: ... print line ... \end{lstlisting} \end{frame} +\begin{frame}[fragile] + \frametitle{File and \kwrd{for}} +\begin{lstlisting} +In [1]: f = open('dummyfile') + +In [2]: for line in f: + ...: print line + ...: +\end{lstlisting} + +\begin{columns} + \column{0.3\textwidth} + +\begin{lstlisting} +One 1 + +Two 2 + +Three 3 +\end{lstlisting} + \column{0.6\textwidth} +\pause +\begin{block}{What happens when ...} +the \kwrd{print line} is replaced by \kwrd{print line,} +\end{block} +\end{columns} +\ldots +\end{frame} + \begin{frame}{Problem 4.2} The given file has lakhs of records in the form:\\ \typ{RGN;ID;NAME;MARK1;\ldots;MARK5;TOTAL;PFW}\\ @@ -239,7 +283,7 @@ Writing files % TIME: 30 m, running 215m %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -\subsection{Modules} +\section{Modules} \begin{frame}[fragile] {Modules} @@ -347,14 +391,15 @@ def lcm(a, b): \inctime{25} \end{frame} + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % TIME: 25 m, running 230m %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -\subsection{Coding Style in Python} +\section{Coding Style} \begin{frame}{Readability and Consistency} \begin{itemize} - \item Readability Counts!-Code is read more often than its written. + \item Readability Counts!\\Code is read more often than its written. \item Consistency! \item Know when to be inconsistent. \end{itemize} @@ -393,12 +438,16 @@ def lcm(a, b): \item Ending the docstrings \item One liner docstrings \end{itemize} +More information at PEP8: http://www.python.org/dev/peps/pep-0008/ \inctime{10} \end{frame} +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% TIME: 10 m, running 240m +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -\subsection{Objects} -\begin{frame}{Objects in Python} +\section{Objects} +\begin{frame}{Objects in general} \begin{itemize} \item What is an Object? (Types and classes) \item identity @@ -407,8 +456,35 @@ def lcm(a, b): \end{itemize} \end{frame} +\begin{frame}{Almost everything is an Object!} + \begin{itemize} + \item \typ{list} + \item \typ{tuple} + \item \typ{string} + \item \typ{dictionary} + \item \typ{function} + \item Of course, user defined class objects! + \end{itemize} +\end {frame} + +\begin{frame}{Using Objects} + \begin{itemize} + \item Creating Objects: Initialization + \item Object Manipulation: Object methods and ``.'' operator + \end{itemize} +\end{frame} + +\begin{frame}[fragile] + \frametitle{IPython Examples} + \begin{lstlisting} +In [1]: l = [] #Initialising a list object +In [2]: l? +In [3]: l.<tab> + \end{lstlisting} +\end{frame} + \begin{frame}[fragile] - \frametitle{Why are they useful?} + \frametitle{Objects provide consistency} \small \begin{lstlisting} for element in (1, 2, 3): @@ -430,9 +506,17 @@ for line in urllib2.urlopen('http://site.com'): \inctime{10} \end{frame} -\begin{frame} - \frametitle{What did we learn?} - \tableofcontents - % You might wish to add the option [pausesections] +\section{Summary} + +\begin{frame}{What have we learnt so far?} + \begin{itemize} + \item Operating on lists and tuples using \kwrd{for} + \item Simple string tokenizing and parsing + \item Writing to and Reading from files using \kwrd{for} + \item Using and writing Python Modules + \item Coding Style + \item Objects in Python + \end{itemize} \end{frame} + \end{document} |