如何在jupyter中使用%% writefile -a命令在文件中添加换行符? [英] How to append a file with a newline using %%writefile -a command in jupyter?

问题描述

我使用Jupyter Notebook编写一个小程序.因此，我想将一些单元格写入.py文件.

I use a Jupyter Notebook to write a small program. Therefore, I want to write some cells into a .py file.

我使用魔法%%writefile -a myfile.py.它可以工作，但是问题是内容没有新行添加.因此，我必须在运行单元格后手动向myfile.py添加换行符.

I use this magic %%writefile -a myfile.py. It works, but the problem is that the content is appended without a new line. So, I have to manually add a line break to myfile.py after running the cells.

如何避免此问题?

推荐答案

只需在单元格中的%%writefile之后放置一个空行.例如:

Just put an empty line after %%writefile in the cell. For example:

In [1]: 
%%writefile -a myfile.py

a = 1

In [2]: 
%%writefile -a myfile.py

b = 2

现在:

In [2]: 
%less myfile.py

a = 1
b = 2

在单元格的开头添加两个空行，以使之间的空行 myfile.py文件中两个单元格的导出代码.

Add two empty lines to the beginning of a cell for an empty line between the exported code of two cells in the file myfile.py.

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