lstlisting 无法保留页边距？

Question

我很困惑，尽管我承认这是我第一次使用lstlisting。我想在我的论文附录中插入一些python代码。

有些行可能很长。但文档似乎无法换行并保持文档的页边距。当代码到达页边距时，有没有办法设置换行？

目前我有类似的东西（抱歉，我的序言有 200 行，我不会在这里全部插入）。

\documentclass[a4paper,12pt,twoside,openright, english]{book}
\usepackage{listings}

\section{Python code}
The following sections include the functions and scripts.

\begin{lstlisting}[language=Python]
import numpy as np
import pandas as pd
import os
dir = # insert here path where the data are saved

files = []
for f in os.listdir(dir):
    if (f.startswith('Temp'))&(f.endswith('matched.csv')): # find matched logs
        files.append(f)

# some MANUAL INPUT for plotting
interval=(0,-1)  ## for slicing of relevant logs
polyOrder = 6

# etc.
\end{lstlisting}

我能以某种方式修改设置，以便代码不会直接“离开”页面吗？

Answer 1

这应该会有效。

\documentclass[a4paper,12pt,twoside,openright, english]{book}
\usepackage{listings}
\usepackage{lmodern}  % for bold teletype font
\usepackage{amsmath}  % for \hookrightarrow
\usepackage{xcolor}   % for \textcolor

\lstset{
  basicstyle=\ttfamily,
  columns=fullflexible,
  frame=single,
  breaklines=true,
  postbreak=\mbox{\textcolor{red}{$\hookrightarrow$}\space},
}

\begin{document}
\section{Python code}
The following sections include the functions and scripts.

\begin{lstlisting}[language=Python]
import numpy as np
import pandas as pd
import os
dir = # insert here path where the data are saved

files = []
for f in os.listdir(dir):
    if (f.startswith('Temp'))&(f.endswith('matched.csv')): # find matched logs
        files.append(f)

# some MANUAL INPUT for plotting
interval=(0,-1)  ## for slicing of relevant logs
polyOrder = 6

# This is a long text. This is used to test if the line breaks (or) not. This is a long text. This is used to test if the line breaks (or) not. This is a long text. This is used to test if the line breaks (or) not. This is a long text. This is used to test if the line breaks (or) not. This is a long text. This is used to test if the line breaks (or) not. This is a long text. This is used to test if the line breaks (or) not. This is a long text. This is used to test if the line breaks (or) not. 
\end{lstlisting}
\end{document}

输出：

如果你不想要红色箭头，

\documentclass[a4paper,12pt,twoside,openright, english]{book}
\usepackage{listings}
\usepackage{lmodern}  % for bold teletype font
\usepackage{amsmath}  % for \hookrightarrow
\usepackage{xcolor}   % for \textcolor

\lstset{
  basicstyle=\ttfamily,
  columns=fullflexible,
  frame=single,
  breaklines=true
}

\begin{document}
\section{Python code}
The following sections include the functions and scripts.

\begin{lstlisting}[language=Python]
import numpy as np
import pandas as pd
import os
dir = # insert here path where the data are saved

files = []
for f in os.listdir(dir):
    if (f.startswith('Temp'))&(f.endswith('matched.csv')): # find matched logs
        files.append(f)

# some MANUAL INPUT for plotting
interval=(0,-1)  ## for slicing of relevant logs
polyOrder = 6

# This is a long text. This is used to test if the line breaks (or) not. This is a long text. This is used to test if the line breaks (or) not. This is a long text. This is used to test if the line breaks (or) not. This is a long text. This is used to test if the line breaks (or) not. This is a long text. This is used to test if the line breaks (or) not. This is a long text. This is used to test if the line breaks (or) not. This is a long text. This is used to test if the line breaks (or) not. 
\end{lstlisting}
\end{document}