无法在Jupyter中导入IPython并行 | 无法在Jupyter中导入IPython并行

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问题描述

我最近将IPython更新到4.0.0并安装了Jupyter 4.0.6。

I recently made an update of IPython to 4.0.0 and installed Jupyter 4.0.6.

我想使用Ipython并行，并且在启动引擎之后笔记本，我导入：

I wanted to use Ipython parallel, and after starting the engines in the notebook, I imported:

from IPython import parallel

它失败了：

~/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/IPython/utils/traitlets.py:5: UserWarning: IPython.utils.traitlets has moved to a top-level traitlets package.
  warn("IPython.utils.traitlets has moved to a top-level traitlets package.")
~/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/IPython/utils/pickleutil.py:3: UserWarning: IPython.utils.pickleutil has moved to ipykernel.pickleutil
  warn("IPython.utils.pickleutil has moved to ipykernel.pickleutil")
~/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/IPython/utils/jsonutil.py:3: UserWarning: IPython.utils.jsonutil has moved to jupyter_client.jsonutil
  warn("IPython.utils.jsonutil has moved to jupyter_client.jsonutil")
---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-1-5652e9e33a4d> in <module>()
----> 1 from IPython import parallel

~/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/IPython/parallel/__init__.py in <module>()
     31
     32 from .client.asyncresult import *
---> 33 from .client.client import Client
     34 from .client.remotefunction import *
     35 from .client.view import *

~/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/IPython/parallel/client/client.py in <module>()
     38 from IPython.utils.capture import RichOutput
     39 from IPython.utils.coloransi import TermColors
---> 40 from IPython.utils.jsonutil import rekey, extract_dates, parse_date
     41 from IPython.utils.localinterfaces import localhost, is_local_ip
     42 from IPython.utils.path import get_ipython_dir

ImportError: cannot import name rekey

所以我尝试了：

pip install rekey

但未找到分发。

请注意，它在笔记本中的失败方式是相同的，无论是使用 ipython notebook 还是<$ c $打开c> jupyter notebook ，并在控制台中。

Note that it fails the same way in the notebook, be it open with ipython notebook or jupyter notebook, and in the console.

另请注意，有警告：

UserWarning: IPython.utils.jsonutil has moved to jupyter_client.jsonutil

但模块中不存在 rekey jupyter_client.jsonutil

问题：如何在Jupyter中使IPython并行工作？
我缺少什么？

Question: How can I have IPython parallel to work within Jupyter ?What am I missing ?

推荐答案

我发现了我认为的问题（至少它有效）：

I found the problem I think (at least it works):

首先，我必须 import ipyparallel 而不是 IPython.parallel
见这里：

First, I had to import ipyparallel instead of IPython.parallelSee here: http://jupyter.readthedocs.org/en/latest/migrating.html#imports

编辑：我得到这个OSError，但修复显然没用，而且有效没有。我仍然不明白为什么我有这个错误。

I get this OSError, but the fix was apparently useless, and it works without. I still don't get why I had this error, though.

然后，我在启动客户端时遇到了另一个错误：

Then, I had another error, when starting the client:

OSError: Connection file '~/.ipython/profile_default/security/ipcontroller-client.json' not found.
You have attempted to connect to an IPython Cluster but no Controller could be found.
Please double-check your configuration and ensure that a cluster is running.

所以我只是复制目录〜/ .ipython / profile_default 到〜/ .jupyter / profile_default

So I just copy the directory ~/.ipython/profile_default to ~/.jupyter/profile_default

它的确有效！

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