我在 EC2 中更新了 anaconda，然后无法在终端中打开 Jupyter 笔记本，该怎么办？

Question

我刚刚遵循此命令行更新Anaconda，然后当我键入jupyter notebook时，我得到了此错误：

udacity@ip-172-31-25-67:~$ jupyter notebook
Traceback (most recent call last):
  File "/home/carnd/anaconda3/bin/jupyter-notebook", line 4, in <module>
    import notebook.notebookapp
  File "/home/carnd/anaconda3/lib/python3.5/site-packages/notebook/notebookapp.py", line 64, in <module>
    from .services.contents.filemanager import FileContentsManager
  File "/home/carnd/anaconda3/lib/python3.5/site-packages/notebook/services/contents/filemanager.py", line 16, in <module>
    from .filecheckpoints import FileCheckpoints
  File "/home/carnd/anaconda3/lib/python3.5/site-packages/notebook/services/contents/filecheckpoints.py", line 15, in <module>
    from . import tz
ImportError: cannot import name 'tz'

我该怎么办？

Answer 1

尝试运行：

conda config --add channels conda-forge
conda upgrade jupyter notebook

您可以在Conda文档中找到更多信息。

Answer 2

我通过删除我的conda环境然后 conda clean --all解决了这个问题。就我而言，我认为这是与notebook库的损坏的本地缓存