如何在 iPython 笔记本中保存单元格的输出 [英] How to save the output of a cell in iPython notebook

问题描述

我希望能够将 iPython 笔记本 cell 的 TEXT 输出保存到磁盘上的文件中.

I would like to be able to save the TEXT output of an iPython notebook cell into a file on disk.

我有 2 个额外的要求/请求:

I have 2 additional requirements/requests:

• 能够重新运行单元并使用最新的内容覆盖我的输出.
• 还在笔记本中显示输出.

我已经想出了如何使用 %%capture 魔法将 iPython 笔记本的单元格保存到一个文件中，但它似乎不够灵活:它每次我重新添加- 运行单元格，我无法让它显示在同一个单元格中.

I have figured out how to use the %%capture magic for some basic saving of an iPython notebook's cell into a file, but it does not seem flexible enough: it keeps appending every time I re-run the cell and I cannot get it to display within the same cell.

这是我目前所拥有的:

%%capture cap --no-stderr
print 'stuff'
with open('output.txt', 'w') as f:
    f.write(cap.stdout)

# clear the cap by deleting the variable here?
# del cap 

当我尝试在写入后放置 cap.show() 时，它似乎没有显示.相反，它将输出放入 cap 变量两次.

When I try to put cap.show() after the write, it does not seem to display. Instead, it puts the output into the cap variable twice.

推荐答案

你有一个错字，在 cap.stout 中缺少 d.它应该是 cap.stdout我测试了以下内容，效果很好.cap.show() 还打印了stuff"并重新运行单元格覆盖了文件.

You have a typo, missing d in cap.stout. It should be cap.stdout I tested the following and it worked fine. cap.show() also printed "stuff" and re-running the cell overwrote the file.

%%capture cap --no-stderr
print 'stuff'
with open('output.txt', 'w') as f:
    f.write(cap.stdout)

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