topnush
https://topanswers.xyz/tex?q=1894 very nicely shows how to use listing in exsheets. But my document is a more complicated than the original example I gave. Here is a more realistic example, including lstquestion for the first question but then showing what I need for the second.
```
\documentclass[12pt,a4paper]{article}
\usepackage{exsheets}
\usepackage{exsheets-listings}
\SetupExSheets{
headings = block-subtitle ,
subtitle-format = \bfseries % default is \itshape
}
\usepackage{paralist}
\usepackage{amsfonts}
\usepackage{amsmath}
\DeclareMathOperator{\var}{var}
\DeclareMathOperator{\E}{\mathbb{E}}
\SetupExSheets{solution/print=true}
\SetupExSheets{question/type=exam}
\SetupExSheets[points]{name=point,name-plural=points}
% Default fixed font does not support bold face
\DeclareFixedFont{\ttb}{T1}{txtt}{bx}{n}{12} % for bold
\DeclareFixedFont{\ttm}{T1}{txtt}{m}{n}{12} % for normal
% Custom colors
\usepackage{color}
\definecolor{deepblue}{rgb}{0,0,0.5}
\definecolor{deepred}{rgb}{0.6,0,0}
\definecolor{deepgreen}{rgb}{0,0.5,0}
\usepackage{listings}
% Python style for highlighting
\lstdefinestyle{mypython}{%
language=Python,
basicstyle=\ttm,
otherkeywords={self}, % Add keywords here
keywordstyle=\ttb\color{deepblue},
emph={MyClass,__init__}, % Custom highlighting
emphstyle=\ttb\color{deepred}, % Custom highlighting style
stringstyle=\color{deepgreen},
frame=tb, % Any extra options here
showstringspaces=false %
}
\begin{document}
\begin{lstquestion}[%
pre=Explain something,
listings={style={mypython}}
]
# Test 1
\end{lstquestion}
\begin{question}
\begin{enumerate}
\item Implement:
\begin{itemize}
\item $A$
\item $B$
\end{itemize}
\begin{python}
# Test 2
print(function("A"))
\end{python}
\item Implement more
\begin{python}
# Test 3
\end{python}
\end{enumerate}
\end{question}
\end{document}
```