无法在Jupyter中导入IPython并行

我最近将IPython更新为4.0.0，并安装了Jupyter 4.0.6

我想使用Ipython并行，在启动笔记本中的引擎后，我导入：

from IPython import parallel

但它失败了：

~/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

但未发现分布

请注意，在笔记本电脑中，无论是使用

ipython notebook

或

jupyter notebook

打开，还是在控制台中，它都会以相同的方式出现故障

还请注意，有一个警告：

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

但是

rekey

模块中不存在

jupyter\u client.jsonutil

问题：我如何让IPython并行在Jupyter内工作？

---

我遗漏了什么？

我发现了我认为的问题（至少它是有效的）：

• 首先，我必须

  导入ipyparallel

  而不是

  IPython.parallel

  请看这里：

---

编辑：我得到了这个操作错误，但修复显然是无用的，而且它没有。不过，我还是不明白我为什么会犯这个错误

• 然后，我在启动客户端时出现了另一个错误：

  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.
  

因此，我只需将目录

~/.ipython/profile\u default

复制到

~/.jupyter/profile\u default

---

而且它有效

将~/.ipython/profile\默认值移动到~/.jupyter/profile\默认值相当于删除配置文件目录。~/。jupyter/profile\u默认情况下不搜索任何文件。ipyparallel的连接文件仍然在~/.ipython/profile\u default/security/@minrk中，因此如果我删除

~/.jupyter/profile\u default

，它应该仍然可以工作？否则，我如何解决

操作错误

？你说得对，它仍在工作。为什么会出现此错误？错误只是连接文件不存在（控制器可能没有正确启动，或者文件可能已被删除）。这可能与迁移无关，再次启动控制器很可能是修复它的原因。

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.