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-rw-r--r--input_output/quickref.tex11
-rw-r--r--input_output/script.rst199
-rw-r--r--input_output/slides.tex106
3 files changed, 316 insertions, 0 deletions
diff --git a/input_output/quickref.tex b/input_output/quickref.tex
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+Creating a tuple:\\
+{\ex \lstinline| t = (1, "hello", 2.5)|}
+
+Accessing elements of tuples:\\
+{\ex \lstinline| t[index] Ex: t[2]|}
+
+Accessing slices of tuples:\\
+{\ex \lstinline| t[start:stop:step]|}
+
+Swapping values:\\
+{\ex \lstinline| a, b = b, a|}
diff --git a/input_output/script.rst b/input_output/script.rst
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+.. Objectives
+.. ----------
+
+.. A - Students and teachers from Science and engineering backgrounds
+ B -
+ C -
+ D -
+
+.. Prerequisites
+.. -------------
+
+.. 1. Loops
+
+.. Author : Nishanth Amuluru
+ Internal Reviewer :
+ External Reviewer :
+ Checklist OK? : <put date stamp here, if OK> [2010-10-05]
+
+Script
+------
+
+Hello friends and welcome to the tutorial on Input/Output
+
+{{{ Show the slide containing title }}}
+
+{{{ Show the slide containing the outline slide }}}
+
+Input and Output are used in almost every program we use.
+In this tutorial, we shall learn
+
+ * Outputting data
+ * Taking input from the user
+
+type
+::
+
+ a = "This is a string"
+ a
+ print a
+
+print a prints the value of a which is obvious.
+As you can see, even when you type just a, the value of a is shown.
+But there is a difference.
+
+Typing a shows the value of a while print a prints the string. This difference
+becomes more evident when we use strings with newlines in them.
+type
+::
+
+ b = "A line \n New line"
+ b
+ print b
+
+As you can see, just typing b shows that b contains a newline character.
+While typing print b prints the string and hence the newline.
+
+Moreover when we type just a, the value a is shown only in interactive mode and
+does not have any effect on the program while running it as a script.
+
+We shall look at different ways of outputting the data.
+
+print statement also accepts the syntax of C's printf statement.
+Various arguments can be passed to print using modifiers.
+type
+::
+
+ x = 1.5
+ y = 2
+ z = "zed"
+ print "x is %2.1f y is %d z is %s"%(x,y)
+
+As you can see, the values of x and y are substituted in place of %2.1f and %d
+
+{{{ Pause here and try out the following exercises }}}
+
+%% 1 %% What happens when you do print "x is %d y is %f"%(x)
+
+{{{ continue from paused state }}}
+
+We see that the int value of x and float value of y are printed corresponding
+to the modifiers used in the print statement.
+
+We can also see that print statement prints a new line character at the end of
+line, everytime it is called. This can be suppressed by using a "," at the end
+print statement.
+
+Let us see this by typing out following code on an editor as print_example.py
+
+{{{ open an editor }}}
+type
+::
+
+ print "Hello"
+ print "World"
+
+ print "Hello",
+ print "World"
+
+Now we run the script using %run /home/fossee/print_example.py
+
+As we can see, the print statement when used with comma in the end, prints a
+space instead of a new line.
+
+Now we shall look at taking input from the user.
+We will use the ~~raw_input~~ for this.
+type
+::
+
+ ip = raw_input()
+
+The cursor is blinking indicating that it is waiting for input
+type
+::
+
+ an input
+
+and hit enter.
+Now let us see what is the value of ip by typing.
+::
+
+ ip
+
+We can see that it contains the string "an input"
+
+{{{ Pause here and try out the following exercises }}}
+
+%% 2 %% enter the number 5.6 as input and store it in a variable called c.
+
+{{{ continue from paused state }}}
+
+We have to use the raw_input command with variable c.
+type
+::
+
+ c = raw_input()
+ 5.6
+ c
+
+Now let us see the type of c.
+
+::
+
+ type(c)
+
+We see that c is a string. This implies that anything you enter as input, will
+be taken as a string no matter what you enter.
+
+{{{ Pause here and try out the following exercises }}}
+
+%% 3 %% What happens when you do not enter anything and hit enter
+
+{{{ continue from paused state }}}
+
+::
+
+ d = raw_input()
+ <RET>
+ d
+
+We see that when nothing is entered, an empty string is considered as input.
+
+raw_input also can display a prompt to assist the user.
+::
+
+ name = raw_input("Please enter your name: ")
+
+prints the string given as argument and then waits for the user input.
+
+{{{ Pause here and try out the following exercises }}}
+
+%% 4 %% How do you display a prompt and let the user enter input in a new line
+
+{{{ continue from paused state }}}
+
+The trick is to include a newline character at the end of the prompt string.
+::
+
+ ip = raw_input("Please enter a number in the next line\n> ")
+
+prints the newline character and hence the user enters input in the new line
+
+{{{ Show summary slide }}}
+
+This brings us to the end of the tutorial.
+we have learnt
+
+ * How to print some value
+ * How to print using modifiers
+ * How to take input from user
+ * How to display a prompt to the user before taking the input
+
+{{{ Show the "sponsored by FOSSEE" slide }}}
+
+#[Nishanth]: Will add this line after all of us fix on one.
+This tutorial was created as a part of FOSSEE project, NME ICT, MHRD India
+
+Hope you have enjoyed and found it useful.
+Thankyou
+
diff --git a/input_output/slides.tex b/input_output/slides.tex
new file mode 100644
index 0000000..df1462c
--- /dev/null
+++ b/input_output/slides.tex
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+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%Tutorial slides on Python.
+%
+% Author: FOSSEE
+% Copyright (c) 2009, FOSSEE, IIT Bombay
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\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{infolines}
+ \setbeamercovered{transparent}
+}
+
+\usepackage[english]{babel}
+\usepackage[latin1]{inputenc}
+%\usepackage{times}
+\usepackage[T1]{fontenc}
+
+\usepackage{ae,aecompl}
+\usepackage{mathpazo,courier,euler}
+\usepackage[scaled=.95]{helvet}
+
+\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}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Macros
+\setbeamercolor{emphbar}{bg=blue!20, fg=black}
+\newcommand{\emphbar}[1]
+{\begin{beamercolorbox}[rounded=true]{emphbar}
+ {#1}
+ \end{beamercolorbox}
+}
+\newcounter{time}
+\setcounter{time}{0}
+\newcommand{\inctime}[1]{\addtocounter{time}{#1}{\tiny \thetime\ m}}
+
+\newcommand{\typ}[1]{\lstinline{#1}}
+
+\newcommand{\kwrd}[1]{ \texttt{\textbf{\color{blue}{#1}}} }
+
+% Title page
+\title{Your Title Here}
+
+\author[FOSSEE] {FOSSEE}
+
+\institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay}
+\date{}
+
+% DOCUMENT STARTS
+\begin{document}
+
+\begin{frame}
+ \maketitle
+\end{frame}
+
+\begin{frame}[fragile]
+ \frametitle{Outline}
+ \begin{itemize}
+ \item
+ \end{itemize}
+\end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% All other slides here. %%
+%% The same slides will be used in a classroom setting. %%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\begin{frame}[fragile]
+ \frametitle{Summary}
+ \begin{itemize}
+ \item
+ \end{itemize}
+\end{frame}
+
+\begin{frame}
+ \frametitle{Thank you!}
+ \begin{block}{}
+ \begin{center}
+ This spoken tutorial has been produced by the
+ \textcolor{blue}{FOSSEE} team, which is funded by the
+ \end{center}
+ \begin{center}
+ \textcolor{blue}{National Mission on Education through \\
+ Information \& Communication Technology \\
+ MHRD, Govt. of India}.
+ \end{center}
+ \end{block}
+\end{frame}
+
+\end{document}