将Python 3内核的IPython 3更改为集群的python2

Question

我为Python 3安装了IPython 3,以便与Jupyterhub一起使用.

现在我可以使用带有Python2内核的笔记本,因为我创建了 /usr/local/share/jupyter/kernels/python2/kernel.json

有:

{
 "argv": ["python2", "-m", "IPython.kernel",
          "-f", "{connection_file}"],
 "display_name": "Python 2",
 "language": "python2"
}

现在我也想使用IPython.parallel,但是当我启动一个集群时它将自动启动Python 3中的引擎,我该如何将其更改为Python 2？

Answer 1

我解决了这个问题

sudo mkdir /etc/ipython/

sudo nano /etc/ipython/ipython_config.py

添加这些行：

    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']

现在引擎应该从 python2 开始

Jupyter 1.0 或 IPython 4.0 的编辑： 更改为

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']

并恢复集群选项卡： sudo mkdir /etc/jupyter/

sudo nano /etc/jupyter/jupyter_notebook_config.py

添加这个：

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