author | Madhusudan.C.S <madhusudancs@gmail.com> |
Tue, 29 Dec 2009 19:02:01 +0530 | |
changeset 333 | 25b18b51be41 |
parent 297 | a835affb1447 |
child 330 | 46533051b9d3 |
permissions | -rw-r--r-- |
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%Tutorial slides on Python. |
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% Author: FOSSEE |
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% Copyright (c) 2009, FOSSEE, IIT Bombay |
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\documentclass[14pt,compress]{beamer} |
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%\documentclass[draft]{beamer} |
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%\documentclass[compress,handout]{beamer} |
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%\usepackage{pgfpages} |
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%\pgfpagesuselayout{2 on 1}[a4paper,border shrink=5mm] |
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% Modified from: generic-ornate-15min-45min.de.tex |
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\mode<presentation> |
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{ |
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\usetheme{Warsaw} |
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\useoutertheme{infolines} |
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\setbeamercovered{transparent} |
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} |
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\usepackage[english]{babel} |
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\usepackage[latin1]{inputenc} |
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%\usepackage{times} |
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\usepackage[T1]{fontenc} |
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% Taken from Fernando's slides. |
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\usepackage{ae,aecompl} |
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\usepackage{mathpazo,courier,euler} |
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\usepackage[scaled=.95]{helvet} |
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\definecolor{darkgreen}{rgb}{0,0.5,0} |
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\usepackage{listings} |
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\lstset{language=Python, |
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basicstyle=\ttfamily\bfseries, |
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commentstyle=\color{red}\itshape, |
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stringstyle=\color{darkgreen}, |
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showstringspaces=false, |
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keywordstyle=\color{blue}\bfseries} |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% Macros |
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\setbeamercolor{emphbar}{bg=blue!20, fg=black} |
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\newcommand{\emphbar}[1] |
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{\begin{beamercolorbox}[rounded=true]{emphbar} |
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{#1} |
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\end{beamercolorbox} |
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} |
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\newcounter{time} |
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\setcounter{time}{0} |
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\newcommand{\inctime}[1]{\addtocounter{time}{#1}{\tiny \thetime\ m}} |
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\newcommand{\typ}[1]{\lstinline{#1}} |
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\newcommand{\kwrd}[1]{ \texttt{\textbf{\color{blue}{#1}}} } |
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%%% This is from Fernando's setup. |
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% \usepackage{color} |
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% \definecolor{orange}{cmyk}{0,0.4,0.8,0.2} |
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% % Use and configure listings package for nicely formatted code |
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% \usepackage{listings} |
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% \lstset{ |
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% language=Python, |
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% basicstyle=\small\ttfamily, |
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% commentstyle=\ttfamily\color{blue}, |
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% stringstyle=\ttfamily\color{orange}, |
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% showstringspaces=false, |
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% breaklines=true, |
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% postbreak = \space\dots |
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% } |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% Title page |
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\title[Basic Python]{Python language: Basics} |
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\author[FOSSEE Team] {The FOSSEE Group} |
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\institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay} |
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\date[] {8 November, 2009\\Day 2, Session 1} |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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%\pgfdeclareimage[height=0.75cm]{iitmlogo}{iitmlogo} |
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%\logo{\pgfuseimage{iitmlogo}} |
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%% Delete this, if you do not want the table of contents to pop up at |
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%% the beginning of each subsection: |
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\AtBeginSubsection[] |
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{ |
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\begin{frame}<beamer> |
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\frametitle{Outline} |
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\tableofcontents[currentsection,currentsubsection] |
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\end{frame} |
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} |
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\AtBeginSection[] |
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{ |
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\begin{frame}<beamer> |
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\frametitle{Outline} |
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\tableofcontents[currentsection,currentsubsection] |
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} |
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% If you wish to uncover everything in a step-wise fashion, uncomment |
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% the following command: |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% DOCUMENT STARTS |
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\titlepage |
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\frametitle{Outline} |
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% You might wish to add the option [pausesections] |
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\section{Data types} |
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\frametitle{Primitive Data types} |
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\begin{itemize} |
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\item Numbers: float, int, complex |
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\item Strings |
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\item Booleans |
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\end{itemize} |
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\end{frame} |
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\subsection{Numbers} |
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\begin{frame}[fragile] |
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\frametitle{Numbers} |
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\item \kwrd{int}\\ whole number, no matter what the size! |
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\begin{lstlisting} |
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In []: a = 13 |
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In []: b = 99999999999999999999 |
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\end{lstlisting} |
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\item \kwrd{float} |
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In []: p = 3.141592 |
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\end{lstlisting} |
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\end{itemize} |
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\end{frame} |
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\begin{frame}[fragile] |
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\frametitle{Complex numbers} |
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In []: c = 3+4j |
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In []: abs(c) |
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Out[]: 5.0 |
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In []: c.imag |
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Out[]: 4.0 |
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Out[]: 3.0 |
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\end{lstlisting} |
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\end{frame} |
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\subsection{Booleans} |
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\begin{frame}[fragile] |
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In []: t = True |
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In []: f or t |
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Out[]: True |
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In []: f and t |
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Out[]: False |
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\end{lstlisting} |
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\end{frame} |
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\begin{frame}[fragile] |
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\frametitle{( ) for precedence} |
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In []: a = False |
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Out[]: True |
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Out[]: False |
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\end{lstlisting} |
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\inctime{5} |
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\end{frame} |
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\subsection{Strings} |
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\frametitle{Strings} |
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Strings were introduced previously, let us now look at them in a little more detail. |
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In []: w = "hello" |
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Out[]: hlo |
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-------------------------------------------- |
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TypeError Traceback (most recent call last) |
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TypeError: 'str' object does not |
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support item assignment |
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Out[]: 'HELLO WORLD' |
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In []: a = 'Hello World' |
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\item It provides tab completion |
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In []: a.s<Tab> |
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\frametitle{Still with strings} |
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\item We saw split() yesterday |
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Out[]: 'abc' |
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\end{lstlisting} |
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\end{frame} |
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\frametitle{String formatting} |
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In []: x, y = 1, 1.234 |
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Out[]: 'x is 1, y is 1.234' |
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\item \emph{\%d}, \emph{\%f} etc. available |
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\emphbar{\url{http://docs.python.org/library/stdtypes.html}} |
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\section{Operators} |
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\small |
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In []: 1786 % 12 |
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Out[]: 10 |
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Out[]: 1 |
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Out[]: 5 |
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Out[]: 396088836 |
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\end{lstlisting} |
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In []: 17 / 2 |
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Out[]: 8 |
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-------------------------------------------- |
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TypeError Traceback (most recent call last) |
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\inctime{15} |
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\end{frame} |
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|
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\section{Simple IO} |
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\begin{frame}[fragile] |
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\frametitle{Simple IO: Console Input} |
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\small |
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\begin{itemize} |
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\item raw\_input() waits for user input. |
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\begin{lstlisting} |
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In []: a = raw_input() |
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452 |
5 |
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|
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In []: a = raw_input('Enter a value: ') |
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Enter a value: 5 |
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\end{lstlisting} |
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\item Prompt string is optional. |
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\item All keystrokes are Strings! |
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459 |
\item \texttt{int()} converts string to int. |
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460 |
\end{itemize} |
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\end{frame} |
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|
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\begin{frame}[fragile] |
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\frametitle{Simple IO: Console output} |
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\begin{itemize} |
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\item \texttt{print} is straight forward |
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467 |
\item Put the following code snippet in a file \emph{hello1.py} |
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\end{itemize} |
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\begin{lstlisting} |
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print "Hello" |
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471 |
print "World" |
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|
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473 |
|
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474 |
In []: %run -i hello1.py |
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475 |
Hello |
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World |
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\end{lstlisting} |
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\end{frame} |
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479 |
|
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\begin{frame}[fragile] |
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481 |
\frametitle{Simple IO: Console output \ldots} |
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482 |
Put the following code snippet in a file \emph{hello2.py} |
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\begin{lstlisting} |
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484 |
print "Hello", |
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Reorganized slides.
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485 |
print "World" |
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Reorganized slides.
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486 |
|
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Reorganized slides.
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|
487 |
|
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Reorganized slides.
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488 |
In []: %run -i hello2.py |
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489 |
Hello World |
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490 |
\end{lstlisting} |
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491 |
|
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|
492 |
\emphbar{Note the distinction between \texttt{print x} and \texttt{print x,}} |
216
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Removed multiplication of list with * operator.
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|
493 |
\end{frame} |
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Removed multiplication of list with * operator.
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|
494 |
|
135
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parents:
diff
changeset
|
495 |
\section{Control flow} |
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
diff
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|
496 |
\begin{frame} |
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
diff
changeset
|
497 |
\frametitle{Control flow constructs} |
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
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parents:
diff
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|
498 |
\begin{itemize} |
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Added Session 1, Day 2 - "Formal approach to Python" slides.
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|
499 |
\item \kwrd{if/elif/else}: branching |
288
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500 |
\item \kwrd{C if X else Y}: Ternary conditional operator |
135
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|
501 |
\item \kwrd{while}: looping |
288
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502 |
\item \kwrd{for}: iterating |
135
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|
503 |
\item \kwrd{break, continue}: modify loop |
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
diff
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|
504 |
\item \kwrd{pass}: syntactic filler |
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
diff
changeset
|
505 |
\end{itemize} |
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
diff
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|
506 |
\end{frame} |
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
diff
changeset
|
507 |
|
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
Santosh G. Vattam <vattam.santosh@gmail.com>
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diff
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|
508 |
\subsection{Basic Conditional flow} |
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
diff
changeset
|
509 |
\begin{frame}[fragile] |
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
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|
510 |
\frametitle{\typ{If...elif...else} example} |
288
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|
511 |
\small |
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|
512 |
\begin{lstlisting} |
288
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513 |
In []: x = int(raw_input("Enter an integer:")) |
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|
514 |
|
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515 |
In []: if x < 0: |
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|
516 |
...: print 'Be positive!' |
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517 |
...: elif x == 0: |
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518 |
...: print 'Zero' |
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519 |
...: elif x == 1: |
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520 |
...: print 'Single' |
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|
521 |
...: else: |
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|
522 |
...: print 'More' |
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523 |
...: |
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|
524 |
...: |
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|
525 |
\end{lstlisting} |
a6705e2dfdc6
Complete session 1 day 2.
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|
526 |
\inctime{10} |
135
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parents:
diff
changeset
|
527 |
\end{frame} |
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
diff
changeset
|
528 |
|
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
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parents:
diff
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|
529 |
\begin{frame}[fragile] |
288
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|
530 |
\frametitle{Ternary conditional operator} |
135
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|
531 |
\begin{lstlisting} |
288
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|
532 |
... |
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|
533 |
a = raw_input('Enter number(Q to quit):') |
297
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Added final changes to all day 2 slides for Calicut workshop.
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|
534 |
num = int(a) if a != 'Q' else 0 |
288
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|
535 |
... |
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|
536 |
\end{lstlisting} |
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|
537 |
\end{frame} |
a6705e2dfdc6
Complete session 1 day 2.
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|
538 |
|
a6705e2dfdc6
Complete session 1 day 2.
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|
539 |
\begin{frame}[fragile] |
a6705e2dfdc6
Complete session 1 day 2.
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|
540 |
\frametitle{What did we learn?} |
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|
541 |
\begin{itemize} |
288
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|
542 |
\item Data types: int, float, complex, boolean, string |
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Reorganized slides.
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|
543 |
\item Operators: +, -, *, /, \%, **, +=, -=, *=, /=, >, <, <=, >=, ==, !=, a < b < c |
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544 |
\item Simple IO: \kwrd{raw\_input} and \kwrd{print} |
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|
545 |
\item Conditional structures: \kwrd{if/elif/else},\\ \kwrd{C if X else Y} |
227
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|
546 |
\end{itemize} |
135
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parents:
diff
changeset
|
547 |
\end{frame} |
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
diff
changeset
|
548 |
|
a5da7607ab14
Added Session 1, Day 2 - "Formal approach to Python" slides.
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
diff
changeset
|
549 |
\end{document} |