Python 如何在文本前加上前缀，写入TXT中每一行的开头，并以额外的一行结束

我有一个文本文件，如下所示：

this is 1 line
this is 2 line
this is 3 line

我想将其转换为如下内容：

\begin{enumerate}
\item this is 1 line
\item this is 2 line
\item this is 3 line
\end{enumerate}

我使用的代码如下：

prefix = '\\item '

with open('new.txt', 'r') as src:
    with open('dest.txt', 'w') as dest:
       dest.write("\\begin{enumerate}\n")
       for line in src:
           dest.write('%s%s\n' % (prefix, line.rstrip('\n')))

参考：

---

但我似乎无法正确添加最后一行“\end{enumerate}”。有人能帮忙吗？

只需在

with

子句末尾添加这一行：

prefix = '\\item '

with open('new.txt', 'r') as src:
    with open('dest.txt', 'w') as dest:
       dest.write("\\begin{enumerate}\n")
       for line in src:
           dest.write('%s%s\n' % (prefix, line.rstrip('\n')))
       dest.write("\\end{enumerate}\n")