将Python3内核的iPython3更改为集群的python2

为了使用Jupyterhub，我为Python3安装了iPython3

现在我可以使用Python2内核的笔记本了，因为我创建了

/usr/local/share/jupyter/kernels/Python2/kernel.json

与：

现在我还想使用IPython.parallel，但当我启动集群时，它会自动启动Python 3中的引擎，如何将其更改为Python 2？

我通过

sudo mkdir/etc/ipython/

sudo nano/etc/ipython/ipython_config.py

添加以下行：

    c = get_config()

    c.LocalControllerLauncher.controller_cmd = ['/usr/bin/python2', '-m', 'IPython.parallel.controller']
    c.LocalEngineLauncher.engine_cmd = ['/usr/bin/python2', '-m', 'IPython.parallel.engine']
    c.LocalEngineSetLauncher.engine_cmd = ['/usr/bin/python2', '-m', 'IPython.parallel.engine']

现在引擎应该用python2启动

为Jupyter 1.0或IPython 4.0编辑： 改为

c = get_config()

c.LocalControllerLauncher.controller_cmd = ['/usr/bin/python2', '-m', 'ipyparallel.controller']
c.LocalEngineLauncher.engine_cmd = ['/usr/bin/python2', '-m', 'ipyparallel.engine']
c.LocalEngineSetLauncher.engine_cmd = ['/usr/bin/python2', '-m', 'ipyparallel.engine']

要恢复群集选项卡，请执行以下操作： sudo mkdir/etc/jupyter/

sudo nano /etc/jupyter/jupyter_notebook_config.py

添加以下内容：

c.NotebookApp.server_extensions.append('ipyparallel.nbextension')

真棒：）面对同样的问题，现在解决了，谢谢

c.NotebookApp.server_extensions.append('ipyparallel.nbextension')