Jupyter - Python 3内核死机

Question

Fedora 21，默认安装了Python2.7，3.x，原来安装了iPython，现在也安装了Jupyter

当我尝试使用Jupyter notebook的Python3内核时，我收到一条消息，说内核已经死了，正在尝试重新启动。自然，重启永远不会成功。

已尝试执行以下两个终端命令

ipython内核规范安装-self

ipython3内核规范安装-自定义

第一个命令执行时没有错误。第二个错误是ipython3内核规范install-self

在安装Jupyter之前，我曾经使用过带有Python3内核的iPython。我不记得安装ipython3就是为了这样做的。

建议如何解决？我已经搜索过了，上面是我发现的唯一不是基于Anaconda的建议。

另外，我在~/.ipython/kernels/python3上有kernel.json

谢谢

在内核终止时更新终端上的最后一次输出

ImportError:没有名为“ptyprocess”的模块

UPDATE2回溯错误

[xxxxx@localhost ~]$ sudo ipython3 kernelspec install-self
Traceback (most recent call last):
  File "/bin/ipython3", line 7, in <module>
    from IPython import start_ipython
  File "/usr/lib/python3.4/site-packages/IPython/__init__.py", line 47, in <module>
    from .core.application import Application
  File "/usr/lib/python3.4/site-packages/IPython/core/application.py", line 24, in <module>
    from IPython.core import release, crashhandler
  File "/usr/lib/python3.4/site-packages/IPython/core/crashhandler.py", line 28, in <module>
    from IPython.core import ultratb
  File "/usr/lib/python3.4/site-packages/IPython/core/ultratb.py", line 116, in <module>
    from IPython.utils import path as util_path
  File "/usr/lib/python3.4/site-packages/IPython/utils/path.py", line 19, in <module>
    from IPython.utils.process import system
  File "/usr/lib/python3.4/site-packages/IPython/utils/process.py", line 19, in <module>
    from ._process_posix import system, getoutput, arg_split, check_pid
  File "/usr/lib/python3.4/site-packages/IPython/utils/_process_posix.py", line 24, in <module>
    import pexpect
  File "/usr/lib/python3.4/site-packages/pexpect/__init__.py", line 75, in <module>
    from .pty_spawn import spawn, spawnu
  File "/usr/lib/python3.4/site-packages/pexpect/pty_spawn.py", line 11, in <module>
    import ptyprocess
ImportError: No module named 'ptyprocess'

UPDATE3:安装带有pip3的ptyprocess后，尝试使用名为“3...No”的Python模块创建笔记本时出现新错误

[I 22:29:26.125 NotebookApp] KernelRestarter: restarting kernel (4/5)
WARNING:root:kernel 1ae58a7d-096b-4dc1-b29a-bee4385e4e9a restarted
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/usr/lib/python3.4/site-packages/IPython/__init__.py", line 48, in <module>
    from .terminal.embed import embed
  File "/usr/lib/python3.4/site-packages/IPython/terminal/embed.py", line 16, in <module>
    from IPython.core.interactiveshell import DummyMod
  File "/usr/lib/python3.4/site-packages/IPython/core/interactiveshell.py", line 31, in <module>
    from pickleshare import PickleShareDB
  File "/usr/lib/python3.4/site-packages/pickleshare.py", line 41, in <module>
    from path import path as Path
ImportError: No module named 'path'
[W 22:29:29.137 NotebookApp] KernelRestarter: restart failed

Answer 1

我刚刚安装了python，ipython，upyter和pyspark作为内核。我遇到了一些麻烦，看起来和你现在的情况很接近。很多次我用了"sudo ...“我会得到错误的python版本。我认为，不知何故，sudo在没有shell的情况下运行命令，所以如果您有任何配置(路径、python版本等)，则在使用sudo时可能无法应用它。您可以运行"sudo python"，然后查看是否可以导入模块路径。你也可以试着运行"sudo the python“来确保它是正确的版本。我发现即使用户安装了python2.7，sudo也会使用python2.6。对我来说，最好的办法就是以root用户身份登录，在没有sudo的情况下进行安装。

Answer 2

我刚开始用jupyter笔记本学习python，我遇到了和你一样的问题。一个同事发现了这个问题--我创建了一个python程序random.py，并将其保存到我的Python目录中。由于random也是我安装的一个模块的名称，因此在Anaconda提示窗口中生成了一条错误消息。请检查目录中是否有以保留字和模块命名的.py文件。