jupyter-notebook - 由于 IPython.utils.warn，从 IPython 5.x 升级到 6.0 导致崩溃

Question

我最近通过 condo update ipython 从 IPython 5.x 升级到 6.0 .但是，我在内核中崩溃了:

Traceback (most recent call last):
  File "//anaconda/lib/python3.5/runpy.py", line 170, in _run_module_as_main
    "__main__", mod_spec)
  File "//anaconda/lib/python3.5/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "//anaconda/lib/python3.5/site-packages/ipykernel/__main__.py", line 2, in <module>
    from ipykernel import kernelapp as app
  File "//anaconda/lib/python3.5/site-packages/ipykernel/kernelapp.py", line 37, in <module>
    from .ipkernel import IPythonKernel
  File "//anaconda/lib/python3.5/site-packages/ipykernel/ipkernel.py", line 15, in <module>
    from .zmqshell import ZMQInteractiveShell
  File "//anaconda/lib/python3.5/site-packages/ipykernel/zmqshell.py", line 46, in <module>
    from IPython.utils.warn import error
ImportError: No module named 'IPython.utils.warn'
[I 18:35:28.928 NotebookApp] KernelRestarter: restarting kernel (1/5)

显然，问题在于 IPython.utils.warn已弃用和 has now been removed从 6.0.0 版开始。我怎样才能解决这个问题？

注意:以下均无效:

pip install --upgrade ipython
pip install --upgrade jupyter 
pip install --upgrade --no-deps --force-reinstall ipython
pip install --upgrade --no-deps --force-reinstall jupyter

Answer 1

我遇到过同样的问题。以下行为我解决了这个问题:

conda update ipykernel

我不知道为什么这不是自动完成的。