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-\documentclass[14pt,compress,aspectratio=169]{beamer}
-
-
-\input{macros.tex}
-
-\title[Names and Objects]{Advanced Python}
-\subtitle{Statements, Expressions, Names, and Objects}
-
-\author[FOSSEE] {The FOSSEE Group}
-
-\institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay}
-\date[] {Mumbai, India}
-
-\begin{document}
-
-\begin{frame}
-  \titlepage
-\end{frame}
-
-\begin{frame}
-  \frametitle{Overview}
-  \begin{itemize}
-  \item Statements
-  \item Expressions
-  \item Variables
-  \item Objects
-  \item Names
-  \end{itemize}
-\end{frame}
-
-\begin{frame}
-  \frametitle{Recap of essential concepts}
-  \begin{itemize}
-  \item Mutable data types
-  \item Immutable data types
-  \end{itemize}
-\end{frame}
-
-\begin{frame}
-  \frametitle{Expressions}
-  \begin{itemize}
-  \item Evaluate to something
-  \item Describe some computation
-  \item Python evaluates expressions
-  \end{itemize}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Examples of Expressions}
-  \small
-  \begin{lstlisting}
-In []: 1
-Out[]: 1
-
-In []: (1 + 1.2) * 2.0
-Out[]: 4.4
-
-In []: sin(0.1)
-Out[]: 0.09983341664682815
-
-In []: (2 > 1) and (3 > 2)
-Out[]: True
-
-In []: [1, 2, 3, 4][::2]
-Out[]: [1, 3]
-# Note that each has an output
-  \end{lstlisting}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Statements}
-  \begin{itemize}
-  \item Instruct Python to perform some action
-  \item A program is a series of statements
-  \item A statement can have expressions
-  \item Assignments are statements
-  \end{itemize}
-\begin{lstlisting}
-In []: a = 1
-
-In []: a += 1
-\end{lstlisting}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Assignment statements}
-  \begin{lstlisting}
-In []: a = 1
-
-In []: a = 'hello'
-\end{lstlisting}
-\begin{itemize}
-\item These are assignment statements
-\item Values are \emph{Objects}
-\end{itemize}
-\end{frame}
-
-\begin{frame}
-  \frametitle{Objects}
-  \begin{itemize}
-  \item Objects: all data in Python
-  \item Have an identity, type, and value
-  \item Identity is checked using \typ{is}
-  \item Identity and type cannot change
-  \item Value of mutables change
-  \item Immutable object value cannot change
-  \end{itemize}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Names and objects}
-  \begin{itemize}
-  \item Assignment binds a name to an object
-  \end{itemize}
-  \begin{lstlisting}
-In []: a = 1
-
-In []: b = 1
-  \end{lstlisting}
-  \begin{itemize}
-  \item \typ{a} is a name for the object \typ{1}
-  \item \typ{b} is also a name for the same object \typ{1}
-  \end{itemize}
-  \begin{lstlisting}
-In []: b = a  # The same as above
-\end{lstlisting}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Visualizing this}
-  \begin{minipage}{0.4\textwidth}
-    \begin{lstlisting}
-In []: a = 1
-    \end{lstlisting}
-  \end{minipage}
-  \begin{minipage}{0.4\textwidth}
-    \includegraphics[width=2.5in]{data/a_eq_1.png}
-  \end{minipage}
-\pause
-  \begin{minipage}{0.4\textwidth}
-    \begin{lstlisting}
-In []: b = a
-    \end{lstlisting}
-  \end{minipage}
-  \begin{minipage}{0.4\textwidth}
-    \includegraphics[width=2.5in]{data/a_b_eq_1.png}
-  \end{minipage}
-
-  {\small Made with: \url{pythontutor.com}}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Visualizing this ...}
-  Set \typ{b} to something else:
-
-  \begin{minipage}{0.4\textwidth}
-    \begin{lstlisting}
-In []: a = 1
-
-In []: b = 2
-    \end{lstlisting}
-  \end{minipage}
-  \begin{minipage}{0.4\textwidth}
-    \includegraphics[width=2.5in]{data/a_1_b_2.png}
-  \end{minipage}
-
-  \vspace*{1in}
-  {\small Made with: \url{pythontutor.com}}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Names and objects ...}
-  \begin{itemize}
-  \item More interesting when \typ{a} is a list
-  \end{itemize}
-  \begin{minipage}{0.4\textwidth}
-  \begin{lstlisting}
-In []: a = [1, 2]
-\end{lstlisting}
-\end{minipage}
-  \begin{minipage}{0.4\textwidth}
-    \hspace*{0.2in}\includegraphics[width=2.25in]{data/a_list_b_2.png}
-  \end{minipage}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Names and objects ...}
-  \begin{minipage}{0.4\textwidth}
-  \begin{lstlisting}
-In []: b = a
-\end{lstlisting}
-\end{minipage}
-  \begin{minipage}{0.4\textwidth}
-    \hspace*{0.2in}\includegraphics[width=2.25in]{data/a_b_list.png}
-  \end{minipage}
-  \pause
-  \begin{itemize}
-  \item \typ{a} is a name for the object \typ{[1, 2]}
-  \item \typ{b} is also a name for the \alert{same object}
-  \item Changing the contents of \typ{a} reflect in \typ{b}
-  \end{itemize}
-\end{frame}
-
-
-\begin{frame}[fragile]
-  \frametitle{Names and objects ...}
-  \begin{minipage}{0.4\textwidth}
-  \begin{lstlisting}
-In []: a.append(3)
-
-In []: b
-Out[]: [1, 2, 3]
-  \end{lstlisting}
-\end{minipage}
-  \begin{minipage}{0.4\textwidth}
-    \hspace*{0.4in}\includegraphics[width=2.25in]{data/a_b_list1.png}
-  \end{minipage}
-
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Names and objects ...}
-  \begin{minipage}{0.4\textwidth}
-  \begin{itemize}
-  \item Re-assign \typ{a}
-  \end{itemize}
-  \begin{lstlisting}
-In []: a = 'hello'
-\end{lstlisting}
-\pause
-\end{minipage}
-  \begin{minipage}{0.4\textwidth}
-    \hspace*{0.4in}\includegraphics[width=2.25in]{data/a_str_b_list.png}
-  \end{minipage}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Names and objects ...}
-  Rendered more compactly:
-  \vspace*{0.25in}
-  \begin{center}
-    \includegraphics[width=3in]{data/a_str_b_list_compact.png}
-  \end{center}
-  \vspace*{0.5in}
-  {\small Made with: \url{pythontutor.com}}
-\end{frame}
-
-\begin{frame}
-  \frametitle{Summary}
-  \begin{itemize}
-  \item Expressions: evaluate to something
-  \item Statements: instruct Python to do something
-  \item Objects: identity, type, value
-  \item Assignments bind names to objects
-  \item Frame: an environment for bindings
-  \item Explore \url{pythontutor.com}
-  \end{itemize}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Exercise 1}
-  \vspace*{-0.1in}
-\begin{lstlisting}
-a = [1, 2]
-b = a
-c = [10, 20]
-a.append(c)
-del b
-c.append(30)
-del c
-a[-1].append(40)
-a = 1
-\end{lstlisting}
-\vspace*{0.1in}
-  \begin{itemize}
-  \item Run step-by-step on \url{pythontutor.com}
-  \item Predict the output before you see the answer
-  \end{itemize}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Exercise 2}
-\begin{lstlisting}
-a = [1, 2]
-c = [10, 20]
-a.append(c)
-
-c.append(a)
-a.append(a)
-\end{lstlisting}
-\vspace*{0.1in}
-
-  \begin{itemize}
-  \item Run step-by-step on \url{pythontutor.com}
-  \item Predict the output before you see the answer
-  \end{itemize}
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Exercise 3}
-\begin{lstlisting}
-x = [1, 2]
-y = 'hello'
-
-def f(x):
-   y = x + 1
-   return x*y
-
-f(2)
-\end{lstlisting}
-\vspace*{0.1in}
-  \begin{itemize}
-  \item Run step-by-step on \url{pythontutor.com}
-  \item Predict the output before you see the answer
-  \end{itemize}
-
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Exercise 4}
-\begin{lstlisting}
-def f(x):
-    def g(x):
-        return x + 1
-    return g(x)
-
-f(1)
-f(2)
-\end{lstlisting}
-\vspace*{0.1in}
-  \begin{itemize}
-  \item Run step-by-step on \url{pythontutor.com}
-  \item Predict the output before you see the answer
-  \end{itemize}
-
-\end{frame}
-
-\begin{frame}[fragile]
-  \frametitle{Exercise 5}
-\begin{lstlisting}
-def mul(x):
-    def g(y):
-        return y*x
-    return g
-
-twice = mul(2.0)
-twice(20)
-\end{lstlisting}
-\vspace*{0.1in}
-  \begin{itemize}
-  \item Run step-by-step on \url{pythontutor.com}
-  \item Predict the output before you see the answer
-  \end{itemize}
-
-\end{frame}
-
-
-\end{document}