无法在Jupyter中并行导入IPython

jrjc 发表于 Dev

我最近将IPython更新为4.0.0，并安装了Jupyter 4.0.6。

我想并行使用Ipython，在笔记本中启动引擎之后，我导入了：

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

但是没有发现分布。

请注意，它在笔记本电脑中的失效方式相同，无论是使用ipython notebook还是打开，还是jupyter notebook在控制台中。

另请注意，有一个警告：

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

但rekey在模块中不存在jupyter_client.jsonutil

问题：如何在Jupyter中并行运行IPython？我想念什么？

我发现了我认为的问题（至少有效）：

首先，我不得不import ipyparallel取代IPython.parallel此处的“查看”：http : //jupyter.readthedocs.org/en/latest/migrating.html#imports

编辑：我收到此OSError，但修复显然是无用的，并且没有它也可以工作。不过，我仍然不明白为什么会有这个错误。

然后，启动客户端时出现另一个错误：

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.

所以我只复制目录~/.ipython/profile_default到~/.jupyter/profile_default

而且有效！

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