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%% Copyright 2021-2022 Tobias Enderle
%%
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%% http://www.latex-project.org/lppl.txt
%% and version 1.3c or later is part of all distributions of LaTeX
%% version 2005/12/01 or later.
\documentclass{article}
\usepackage{pyluatex}
\title{PyLuaTeX Example -- Sessions}
\author{Tobias Enderle}
\pysession{session-a}
\pyc{greeting = "Hi, I'm session A"}
\pyc{var = 'Only available in session A'}
\pysession{session-b}
\pyc{greeting = "Hi, I'm session B"}
\begin{document}
\maketitle
In this document the use of sessions is demonstrated.
Sessions provide a way to structure and separate code.
Variables, function definitions, etc. of one session are only accessible
by that very session.
This can be helpful if you have long documents with a lot of code.
\paragraph{Session A}
\pysession{session-a}
The content of the variable \texttt{greeting} in session A is:\\
\py{greeting}
\paragraph{Session B}
\pysession{session-b}
The content of the variable \texttt{greeting} in session B is:\\
\py{greeting}
The variable \texttt{var} is only defined in session A, therefore
an error is printed here:
\begin{python}
try:
print(var)
except NameError as e:
print(e)
\end{python}
\end{document}
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