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| -rw-r--r-- | tuples/slides.org | 89 | ||||
| -rw-r--r-- | tuples/slides.tex | 124 |
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diff --git a/tuples/script.rst b/tuples/script.rst index 23d88b2..297c90f 100644 --- a/tuples/script.rst +++ b/tuples/script.rst @@ -21,62 +21,123 @@ Script ------ -Hello friends and welcome to the tutorial on getting started with -tuples. +.. L1 -{{{ Show the slide containing title }}} +{{{ Show the first slide containing title, name of the production +team along with the logo of MHRD }}} -{{{ Show the slide containing the outline slide }}} +.. R1 -In this tutorial, we shall learn +Hello friends and welcome to the tutorial on "getting started with +tuples". - * what are tuples - * their similarities and dissimilarities with lists - * why are they needed +.. L2 + +{{{ Show the slide containing the objectives }}} + +.. R2 + +At the end of the tutorial, you will be able to, + + 1. Understand of what tuples are. + #. Compare them with lists. + #. Know why they are needed and where to use them. + +.. L3 + +{{{ Switch to the pre-requisite slide }}} + +.. R3 + +Before beginning this tutorial,we would suggest you to complete the +tutorial on "Getting started with lists". + +.. R4 + +Let us start our ipython interpreter. + +.. L4 + +{{{ Open the terminal }}} +:: + + ipython + +.. R5 Let's get started by defining a tuple. A tuple is defined by enclosing parentheses around a sequence of items seperated by commas. It is similar to defining a list except that parentheses are used instead of square brackets. + +.. L5 :: t = (1, 2.5, "hello", -4, "world", 1.24, 5) t -defines a tuple. The items in the tuple are indexed using numbers and can be -accessed by using their position. +.. R6 + +The items in the tuple are indexed using numbers and can be +accessed by using their position.For example, + +.. L6 :: t[3] -prints -4 which is the fourth item of the tuple. +.. R7 +It prints -4 which is the fourth item of the tuple +Similarly, + +.. L7 :: t[1:5:2] -prints the corresponding slice +.. R8 + +It prints the corresponding slice -This is the behaviour similar as to lists. But the difference can be seen when -we try to change an element in the tuple. +This behaviour is similar to that of lists. But the difference can be +seen when we try to change an element in the tuple. + +.. L8 :: t[2] = "Hello" -We can see that, it raises an error saying tuple does not support item -assignment. Tuples are immutable, and cannot be changed after +.. R9 + +We can see that, it raises an error saying 'tuple object does not support +item assignment'. Tuples are immutable, and hence cannot be changed after creation. -Then, what's the use of tuples? +Then, what is the use of tuples? +We shall understand that soon. But let us look at a simple problem of +swapping values. + +Pause the video here, try out the following exercise and resume the video. + +.. L9 -We shall understand that soon. But let us look at a simple problem of swapping -values. +.. L10 -{{{ Pause here and try out the following exercises }}} +{{{ Show slide with exercise 1 }}} -%% 1 %% a = 5 and b = 7. swap the values of a and b +.. R10 + + Given, a = 5 and b = 7. Swap the values of a and b. + +.. R11 + +Switch to terminal fo solution + +.. L11 {{{ continue from paused state }}} +{{{ Switch to the terminal }}} :: a = 5 @@ -85,7 +146,11 @@ values. a b -We define the two values +.. R12 + +We now create a variable say, temp and swap the values using this variable + +.. L12 :: temp = a @@ -95,9 +160,12 @@ We define the two values a b -This is the traditional approach +.. R13 +This is the traditional approach Now let us do it the python way + +.. L13 :: a @@ -108,64 +176,125 @@ Now let us do it the python way a b +.. R14 + We see that the values are swapped. This idiom works for different data-types also. +.. L14 :: a = 2.5 b = "hello" - + a, b = b, a a b +.. R15 + Moreover this type of behaviour is something that feels natural and you'd expect to happen. -This is possible because of the immutability of tuples. This process is called -tuple packing and unpacking. +This is possible because of the immutability of tuples. This process is +called tuple packing and unpacking. Let us first see what is tuple packing. Type + +.. L15 :: 5, +.. R16 + What we see is a tuple with one element. + +.. L16 :: 5, "hello", 2.5 +.. R17 + Now it is a tuple with three elements. -So when we are actually typing two or more elements seperated by commas, those -elements are packed into a tuple. +So when we are actually typing two or more elements seperated by commas, +those elements are packed into a tuple. When you type -:: a, b = b, a -First the values of b and a are packed into a tuple on the right side and then -unpacked into the variables a and b. +First the values of b and a are packed into a tuple on the right side +and then unpacked into the variables a and b. Immutability of tuples ensures that the values are not changed during the packing and unpacking. +.. L17 + +.. L18 + {{{ Show summary slide }}} -This brings us to the end of the tutorial. -we have learnt +.. R18 + +This brings us to the end of this tutorial.In this tutorial, +we have learnt to, + + 1. Define tuples. + #. Understand the similarities of tuples with lists, like indexing and + iterability. + #. Know about the immutability of tuples. + #. Swap values, the python way. + #. Understand the concept of packing and unpacking of tuples. + +.. L19 + +{{{Show self assessment questions slide}}} + +.. R19 + +Here are some self assessment questions for you to solve + +1. Define a tuple containing two values. The first being integer 4 and + second is a float 2.5 + +2. If ``a = 5,`` then what is the type of a ? + + - int + - float + - tuple + - string + +3. if ``a = (2, 3)``. What does ``a[0], a[1] = (3, 4)`` produce + +.. L20 + +{{{solution of self assessment questions on slide}}} + +.. R20 + +And the answers, + +1. A tuple is defined by enclosing parentheses around a sequence of + items seperated by commas.Hence, we write our tuple as, +:: + + (4, 2.5) + +2. Since the given data is 5 followed by a comma, it means that it is + a tuple + +3. The operation a[0], a[1] = (3, 4) will result in an error because + tuples are immutable. - * How to define tuples - * The similarities of tuples with lists, like indexing and iterability - * The immutability of tuples - * The value swapping idiom in Python - * packing and unpacking of tuples +.. L21 -{{{ Show the "sponsored by FOSSEE" slide }}} +{{{ Show the thankyou slide }}} -This tutorial was created as a part of FOSSEE project, NME ICT, MHRD India +.. R21 -Hope you have enjoyed and found it useful. -Thank you +Hope you have enjoyed this tutorial and found it useful. +Thank you! diff --git a/tuples/slides.org b/tuples/slides.org index d1b0d6a..4b718fa 100644 --- a/tuples/slides.org +++ b/tuples/slides.org @@ -18,7 +18,7 @@ #+LaTeX_HEADER: commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen}, #+LaTeX_HEADER: showstringspaces=false, keywordstyle=\color{blue}\bfseries} -#+TITLE: Getting started -- Tuples +#+TITLE: #+AUTHOR: FOSSEE #+EMAIL: #+DATE: @@ -29,39 +29,72 @@ #+OPTIONS: H:3 num:nil toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t #+OPTIONS: TeX:t LaTeX:nil skip:nil d:nil todo:nil pri:nil tags:not-in-toc -* Outline - - what are tuples - - comparison with lists - - why are they needed -* Question 1 - ~a = 5~ and ~b = 7~. swap the values of ~a~ and ~b~ -* Solution 1 - #+begin_src python - temp = a - a = b - b = temp - - a - b - #+end_src +* + #+begin_latex +\begin{center} +\vspace{12pt} +\textcolor{blue}{\huge Getting started with \texttt{tuples}} +\end{center} +\vspace{18pt} +\begin{center} +\vspace{10pt} +\includegraphics[scale=0.95]{../images/fossee-logo.png}\\ +\vspace{5pt} +\scriptsize Developed by FOSSEE Team, IIT-Bombay. \\ +\scriptsize Funded by National Mission on Education through ICT\\ +\scriptsize MHRD,Govt. of India\\ +\includegraphics[scale=0.30]{../images/iitb-logo.png}\\ +\end{center} +#+end_latex +* Objectives + At the end of the tutorial, you will be able to, + + - Understand of what tuples are. + - Compare them with lists. + - Know why they are needed and where to use them. +* Pre-requisite +Spoken tutorial on - +- Getting started with Lists +* Exericse 1 + Given, ~a = 5~ and ~b = 7~. Swap the values of ~a~ and ~b~. * Summary - You should now -- - + Be able to define tuples - + Know the similarities with lists, like -- indexing and iterability - + Know about the immutability of tuples - + Be able to swap variables in the Pythonic way - + Know about packing and unpacking of tuples -* Thank you! + In this tutorial, we have learnt to, + + - Define tuples. + - Understand the similarities of tuples with lists, like indexing and + iterability. + - Know about the immutability of tuples. + - Swap values, the python way. + - Understand the concept of packing and unpacking of tuples. +* Evaluation +1. Define a tuple containing two values. The first being integer 4 and + second is a float 2.5 + +2. If ``a = 5,'' then what is the type of a ? + + - int + - float + - tuple + - string + +3. If ``a = (2, 3)''. What does ``a[ 0 ], a[ 1 ] = (3, 4)'' produce ? +* Solutions +1. (4, 2.5) + +2. tuple + +3. Error +* #+begin_latex \begin{block}{} \begin{center} - This spoken tutorial has been produced by the - \textcolor{blue}{FOSSEE} team, which is funded by the + \textcolor{blue}{\Large THANK YOU!} \end{center} + \end{block} +\begin{block}{} \begin{center} - \textcolor{blue}{National Mission on Education through \\ - Information \& Communication Technology \\ - MHRD, Govt. of India}. + For more Information, visit our website\\ + \url{http://fossee.in/} \end{center} \end{block} #+end_latex diff --git a/tuples/slides.tex b/tuples/slides.tex index 375ff07..cd8c71c 100644 --- a/tuples/slides.tex +++ b/tuples/slides.tex @@ -1,4 +1,4 @@ -% Created 2010-10-10 Sun 23:03 +% Created 2011-07-05 Tue 10:27 \documentclass[presentation]{beamer} \usepackage[latin1]{inputenc} \usepackage[T1]{fontenc} @@ -23,14 +23,14 @@ commentstyle=\color{red}\itshape, stringstyle=\color{darkgreen}, showstringspaces=false, keywordstyle=\color{blue}\bfseries} \providecommand{\alert}[1]{\textbf{#1}} -\title{Getting started -- Tuples} +\title{} \author{FOSSEE} \date{} \usetheme{Warsaw}\usecolortheme{default}\useoutertheme{infolines}\setbeamercovered{transparent} \begin{document} -\maketitle + @@ -41,63 +41,113 @@ showstringspaces=false, keywordstyle=\color{blue}\bfseries} \begin{frame} -\frametitle{Outline} -\label{sec-1} -\begin{itemize} -\item what are tuples -\item comparison with lists -\item why are they needed -\end{itemize} +\begin{center} +\vspace{12pt} +\textcolor{blue}{\huge Getting started with \texttt{tuples}} +\end{center} +\vspace{18pt} +\begin{center} +\vspace{10pt} +\includegraphics[scale=0.95]{../images/fossee-logo.png}\\ +\vspace{5pt} +\scriptsize Developed by FOSSEE Team, IIT-Bombay. \\ +\scriptsize Funded by National Mission on Education through ICT\\ +\scriptsize MHRD,Govt. of India\\ +\includegraphics[scale=0.30]{../images/iitb-logo.png}\\ +\end{center} \end{frame} \begin{frame} -\frametitle{Question 1} +\frametitle{Objectives} \label{sec-2} - \texttt{a = 5} and \texttt{b = 7}. swap the values of \texttt{a} and \texttt{b} + At the end of the tutorial, you will be able to, + + +\begin{itemize} +\item Understand of what tuples are. +\item Compare them with lists. +\item Know why they are needed and where to use them. +\end{itemize} \end{frame} -\begin{frame}[fragile] -\frametitle{Solution 1} +\begin{frame} +\frametitle{Pre-requisite} \label{sec-3} -\lstset{language=Python} -\begin{lstlisting} -temp = a -a = b -b = temp +Spoken tutorial on - -a -b -\end{lstlisting} +\begin{itemize} +\item Getting started with Lists +\end{itemize} \end{frame} \begin{frame} -\frametitle{Summary} +\frametitle{Exericse 1} \label{sec-4} - You should now -- + Given, \verb~a = 5~ and \verb~b = 7~. Swap the values of \verb~a~ and \verb~b~. +\end{frame} +\begin{frame} +\frametitle{Summary} +\label{sec-5} + + In this tutorial, we have learnt to, + + \begin{itemize} -\item Be able to define tuples -\item Know the similarities with lists, like -- indexing and iterability -\item Know about the immutability of tuples -\item Be able to swap variables in the Pythonic way -\item Know about packing and unpacking of tuples +\item Define tuples. +\item Understand the similarities of tuples with lists, like indexing and + iterability. +\item Know about the immutability of tuples. +\item Swap values, the python way. +\item Understand the concept of packing and unpacking of tuples. \end{itemize} \end{frame} \begin{frame} -\frametitle{Thank you!} -\label{sec-5} +\frametitle{Evaluation} +\label{sec-6} + + +\begin{enumerate} +\item Define a tuple containing two values. The first being integer 4 and + second is a float 2.5 +\vspace{8pt} +\item If ``a = 5,'' then what is the type of a ? +\begin{itemize} +\item int +\item float +\item tuple +\item string +\end{itemize} +\vspace{8pt} +\item If ``a = (2, 3)'',\\ What does ``a[ 0 ], a[ 1 ] = (3, 4)'' produce ? +\end{enumerate} +\end{frame} +\begin{frame} +\frametitle{Solutions} +\label{sec-7} + + +\begin{enumerate} +\item (4, 2.5) +\vspace{12pt} +\item tuple +\vspace{12pt} +\item Error +\end{enumerate} +\end{frame} +\begin{frame} \begin{block}{} \begin{center} - This spoken tutorial has been produced by the - \textcolor{blue}{FOSSEE} team, which is funded by the + \textcolor{blue}{\Large THANK YOU!} \end{center} + \end{block} +\begin{block}{} \begin{center} - \textcolor{blue}{National Mission on Education through \\ - Information \& Communication Technology \\ - MHRD, Govt. of India}. + For more Information, visit our website\\ + \url{http://fossee.in/} \end{center} \end{block} \end{frame} -\end{document} +\end{document}
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