python quick ref

header.tex

\newcommand{\header}[1]{
  \begin{tikzpicture}
    \node [fill=shade,rounded corners=5pt]
    {
      \parbox{.95\linewidth}{
        \large
        \textcolor{blue}{\sf \textbf{\raisebox{-15pt}{#1}}}
        \vspace*{1ex}
      }
    };
  \end{tikzpicture}
  \par
}