% Python debugging
% by Roman gryf Dobosz 2015

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\begin{document}

\title{%
    \includegraphics[width=7cm]{images/title.pdf}
}
\author{Roman Dobosz}
\date{PyGDA, 29 June, 2015}

\begin{frame}
  \titlepage
\end{frame}

\begingroup
    \setbeamercolor{background canvas}{bg=ExecusharesBlack}
    \section{Agenda}
\endgroup

\begin{frame}
    \begin{columns}
        \column{.5\textwidth}
        \begin{itemize}[<+->]
            \item<1,2,3> Failure detection
            \item<2,3> Python debuggers
            \item<3> \lstinline{pdb} in practice
        \end{itemize}
        \column{.4\textwidth}
        \centering
        \only<1>{\includegraphics[width=3cm]{images/find_bug.png}}
        \only<2>{\includegraphics[width=3cm]{images/debugs.png}}
        \only<3>{\includegraphics[width=3cm]{images/pdb.png}}
    \end{columns}
\end{frame}

\begingroup
    \setbeamercolor{background canvas}{bg=ExecusharesBlack}
    \section{How to find the place of a failure}
\endgroup

\begin{frame}
    \begin{columns}
        \column{.5\textwidth}
        \begin{itemize}[<+->]
            \item<1,2,3,4,5> traceback (obviously)
            \item<2,3,4,5> \lstinline{print} statement
            \item<3,4,5> module \lstinline{logging}
            \item<4,5> module \lstinline{trace}
            \item<5> debugger
        \end{itemize}
        \column{.4\textwidth}
        \centering
        \only<1>{%

            \vspace*{0cm}
            \hspace*{0cm}\includegraphics[width=5cm]{images/traceback.png}

        }
        \only<2>{%

            \vspace*{0cm}
            \hspace*{0cm}\includegraphics[width=5cm]{images/print.png}

        }
        \only<3>{%

            \vspace*{0cm}
            \hspace*{0cm}\includegraphics[width=5cm]{images/logging.png}

        }
        \only<4>{%

            \vspace*{0cm}
            \hspace*{0cm}\includegraphics[width=5cm]{images/trace.png}

        }
        \only<5>{%
            \vspace*{0cm}
            \hspace*{0cm}\includegraphics[width=5cm]{images/pudb.png}
        }
    \end{columns}
\end{frame}

\begingroup
    \setbeamercolor{background canvas}{bg=ExecusharesBlack}
    \section{Python debuggers}
\endgroup

\begin{frame}
    Debuggers can be divided in several different aspects

    \begin{columns}
        \column{.5\textwidth}
        \begin{itemize}[<+->]
            \item<1,2,3> Text based
            \item<2,3> Graphical
            \item<3> Embedded in IDE
        \end{itemize}
        \column{.4\textwidth}
    \end{columns}
\end{frame}

\begin{frame}
    \frametitle{Debuggers - text based}
    \begin{columns}
        \column{.4\textwidth}
        \begin{itemize}
            \item \lstinline{pdb}
            \item \lstinline{ipdb}
            \item \lstinline{pdb++}
            \item \lstinline{pudb}
            \item \color{blue}\href{https://wiki.python.org/moin/PythonDebuggingTools}{\uline{others}}
        \end{itemize}
        \column{.5\textwidth}

        \vspace*{0cm}
        \hspace*{0cm}\includegraphics[width=5cm]{"images/ipdb.png"}

    \end{columns}
\end{frame}

\begin{frame}
    \frametitle{Debuggers - graphical}
    \begin{columns}
        \column{.4\textwidth}
        \begin{itemize}
            \item Winpdb
            \item \lstinline{pywin.debugger}
        \end{itemize}
        \column{.5\textwidth}

        \vspace*{0cm}
        \hspace*{0cm}\includegraphics[width=5cm]{"images/winpdb.png"}

    \end{columns}
\end{frame}

\begin{frame}
    \frametitle{Debuggers - IDE}
    \begin{columns}
        \column{.4\textwidth}
        \begin{itemize}
            \item PyCharm
            \item PyDev (Eclipse)
            \item Wings IDE
            \item Visual Studio
            \item \color{blue}\href{https://wiki.python.org/moin/IntegratedDevelopmentEnvironments}{\uline{others!}}
        \end{itemize}
        \column{.5\textwidth}

        \vspace*{0cm}
        \hspace*{0cm}\includegraphics[width=5cm]{"images/pycharm.png"}

    \end{columns}
\end{frame}

\begingroup
    \setbeamercolor{background canvas}{bg=ExecusharesBlack}
    \section{Python debugger - pdb}
\endgroup

\begin{frame}
    \frametitle{cm2inch.py}
    \begin{itemize}
        \item Problem: Convert length in centimetre into inch and vice versa
        \item Solution: Simple TKinter program to do this
        \pause
        \item …But it doesn't work :(
    \end{itemize}
\end{frame}

\begin{frame}
    \frametitle{cm2inch.py - structure}
    \begin{itemize}
        \item Single class defined - \lstinline{CmInchConverter}
        \item Method \lstinline{run} launches the program
        \item Method \lstinline{_gui_initialze} builds the GUI
        \item Method \lstinline{calculate} implements the actual calculation logic
    \end{itemize}
\end{frame}

\begin{frame}
    \centerline{\Large Let see it in action!}
\end{frame}

\begingroup
    \setbeamercolor{background canvas}{bg=ExecusharesBlack}
    \section{Questions?}
\endgroup

\begin{frame}
    \centerline{\Large Thank you!}
\end{frame}

\end{document}