如何将多行输入粘贴到 Jupyter 控制台？

Question

用于粘贴多行输入的 %paste 魔法适用于 IPython 2，但无法用于 Jupyter 控制台（在 Mac OSX El Capitan 上）。

~ > jupyter console
Jupyter Console 4.1.0


In [1]: %paste
ERROR: Line magic function `%paste` not found.

In [2]:

查看列出所有魔术命令的 %lsmagic 的输出确实没有显示 %paste。

我尝试直接粘贴，但缩进弄乱了，所以显然需要 %paste 之类的东西。查看 official documentation（5 天前更新）甚至没有提到 "paste" 这个词。

那么，如何将多行输入粘贴到控制台？

Answer 1

好的。找到了解决方案。 Jupyter 控制台有一个 %cpaste 魔法，其行为与之前的 %paste 略有不同，但完成工作。

%cpaste:
Paste & execute a pre-formatted code block from clipboard.

You must terminate the block with '--' (two minus-signs) or Ctrl-D
alone on the line. You can also provide your own sentinel with '%paste
-s %%' ('%%' is the new sentinel for this operation).

The block is dedented prior to execution to enable execution of method
definitions. '>' and '+' characters at the beginning of a line are
ignored, to allow pasting directly from e-mails, diff files and
doctests (the '...' continuation prompt is also stripped).  The
executed block is also assigned to variable named 'pasted_block' for
later editing with '%edit pasted_block'.

You can also pass a variable name as an argument, e.g. '%cpaste foo'.
This assigns the pasted block to variable 'foo' as string, without
dedenting or executing it (preceding >>> and + is still stripped)

'%cpaste -r' re-executes the block previously entered by cpaste.
'%cpaste -q' suppresses any additional output messages.

Do not be alarmed by garbled output on Windows (it's a readline bug).
Just press enter and type -- (and press enter again) and the block
will be what was just pasted.

IPython statements (magics, shell escapes) are not supported (yet).

See also
--------
paste: automatically pull code from clipboard.

Examples
--------
::

  In [8]: %cpaste
  Pasting code; enter '--' alone on the line to stop.
  :>>> a = ["world!", "Hello"]
  :>>> print " ".join(sorted(a))
  :--
  Hello world!

如何将多行输入粘贴到 Jupyter 控制台？

How to paste multi-line input into Jupyter console?

macos

ipython

ipython-magic

jupyter