Jupyter使用了错误的python版本

Question

嗨，我已经安装了Python2.7，但没有删除2.6。我已经在路径中添加了2.7，也作为别名，但是当我使用jupyter笔记本时，它会尝试访问2.6

> jupyter notebook
Traceback (most recent call last):
File "jupyter-notebook", line 7, in <module>
 from notebook.notebookapp import main
 File "/usr/lib/python2.6/site-packages/notebook/__init__.py", line 25, in <module>
from .nbextensions import install_nbextension
File "/usr/lib/python2.6/site-packages/notebook/nbextensions.py", line 226, in  <module>
from traitlets import Bool, Enum, Unicode
File "/usr/lib/python2.6/site-packages/traitlets/__init__.py", line 1, in <module>
from .traitlets import *
File "/usr/lib/python2.6/site-packages/traitlets/traitlets.py", line 1291
return {n: t for (n, t) in cls.class_traits(**metadata).items()
               ^

我的python版本似乎指向2.7

$ python --version
Python 2.7.6

以及我的哪个python似乎给出了正确的输出：

$ which python
alias python='/usr/local/bin/python2.7'
/usr/local/bin/python2.7

两个版本的python都安装了pip。我不知道怎么解决这个问题

Answer 1

看起来您安装了jupyter作为/usr/lib/python2.6的扩展。如果是的话，你必须卸载jupyter并重新安装到你想要的python中。

Answer 2

这可能是python kernel.json配置中的问题。例如，我的python内核位于：

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

包含：

    {
     "language": "python",
     "display_name": "Python 2.7",
     "argv": [
      "/usr/local/bin/python2.7",
      "-m",
      "ipykernel",
      "-f",
      "{connection_file}"
     ]
    }

确保argv部分中的路径指向正确的python版本。