\documentclass[handout]{beamer}

\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{lmodern}
\usepackage[francais]{babel}
\usepackage{graphicx}

%\usepackage[european,cuteinductors,siunitx,straightvoltages]{circuitikz} % les circuits en latex -- PA

\usetheme[sectiontitle]{ens}

\title{Title}
% A subtitle is optional and this may be deleted
\subtitle{subtitle}
\author[]{\textsc{Auteur}}
\institute{Encadrant}
\date{\today}


\tikzset{every picture/.style={execute at begin picture={\shorthandoff{:;!?};}}}


\begin{document}
\begin{frame}
  \centering
   \titlepage
\end{frame}

\begin{frame}{Sommaire}
  \tableofcontents[subsubsectionstyle=hide]
\end{frame}

\section{Example}
\subsection{Block}
\begin{frame}
  \begin{block}{Title block}
    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
  \end{block}
  \begin{block}{}
    No title Block \\
    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
  \end{block}
  \begin{exampleblock}{Example Block}
    Example text (ugly)
  \end{exampleblock}
  \begin{alertblock}{Alert Block}
    Alert Text
  \end{alertblock}
\end{frame}
\subsection{Lists}
\begin{frame}
  \begin{itemize}
    \item Item 1
    \item Item 2
      \begin{itemize}
        \item Subitem 1
        \item Subitem 2
      \end{itemize}
  \end{itemize}
  \begin{enumerate}
    \item item 1
      \begin{enumerate}
        \item item 1.1
      \end{enumerate}
    \item
    \item
    \item
  \end{enumerate}

\end{frame}
\end{document}