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Bopytex

Bopytex is a command line tool which embed python into latex. It uses jinja2 to do so with a modified environnement to match with latex syntax.

Installing

Bopytex depends on texlive and textlive-extra-utils (for latexmk and pdfjoin)

Install and update using pip

pip install -U bopytex

Simple example

% save this as tpl_simple.tex
\documentclass[12pt]{article}

\title{Bopytex example -- {{ number }}}

\begin{document}

\maketitle
%- set a = 10
%- set n = 2
We have two variables
\begin{itemize}
    \item a: \Var{a}
    \item n: \Var{n}
\end{itemize}

\section{Variables}
\subsection{subject}
\begin{itemize}
%- for k,v in subject.items()
    \item
\begin{verbatim}
    \Var{k}: \Var{v}
\end{verbatim}
%- endfor
\end{itemize}
\subsection{options}
\begin{itemize}
%- for k,v in options.items()
    \item
\begin{verbatim}
    \Var{k}: \Var{v}
\end{verbatim}
%- endfor
\end{itemize}

\end{document}

The following command produces the joined_example.pdf document

$ bopytex tpl_simple.tex

How I use it

I build this program to produce individual exams subjects for each of my student with the correction associated. I write a template, and bopytex build subject and correction.

To produce formulas and values, I use an another tool I an developing: mapytex <https://git.opytex.org/lafrite/Mapytex. I am importing it through bopytex_config.py.

# bopytex_config.py
from mapytex import Expression

random.seed(0) # Controlling the seed allows to make subject reproductible

direct_access = {
    "Expression": Expression,
}

Every variables, objects or function inside this file will be available inside the template.

% tpl_example.tpl
\documentclass[12pt]{article}

\title{Bopytex with Mapytex example -- \Var{ subject.name }}

\begin{document}

\maketitle

%- set e = Expression.random("{a} + {b}")
\Var{e}

\Var{e.simplify()}


\section{Variables}
\subsection{subject}
\begin{itemize}
%- for k,v in subject.items()
    \item
\begin{verbatim}
    \Var{k}: \Var{v}
\end{verbatim}
%- endfor
\end{itemize}
\subsection{options}
\begin{itemize}
%- for k,v in options.items()
    \item
\begin{verbatim}
    \Var{k}: \Var{v}
\end{verbatim}
%- endfor
\end{itemize}

\end{document}

Information about my students are stored in a csv file (here students.csv)

"Name","Age","Email","fraction level","calculus level"
"Spike Tucker","22","s.tucker@randatmail.com","7","3"
"Martin Payne","21","m.payne@randatmail.com","7","3"
"Kimberly Baker","20","k.baker@randatmail.com","1","8"
"Emma Bailey","29","e.bailey@randatmail.com","2","5"
"Nicholas Taylor","28","n.taylor@randatmail.com","3","3"

Then I can produce a subject for each of my student

$ bopytex tpl_simple.tex -s students.csv -c bopytex_config.py

Running examples

I build two examples base of the simple example and how I use it. They are playable through dockerfiles with make commands.

For the simple example

make docker-simple

For how I use it

make docker-usecase

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