Error due to missing `dateutil` import when starting jupyter notebook

Notebook
,
1

I’m trying to start up my Jupyter Notebook (jupyter notebook in command line, and I’m not using any environments) and keep getting this error:

Traceback (most recent call last):
  File "/usr/local/bin/jupyter-notebook", line 5, in <module>
    from notebook.notebookapp import main
  File "/usr/local/lib/python3.9/site-packages/notebook/notebookapp.py", line 78, in <module>
    from .services.kernels.kernelmanager import MappingKernelManager, AsyncMappingKernelManager
  File "/usr/local/lib/python3.9/site-packages/notebook/services/kernels/kernelmanager.py", line 18, in <module>
    from jupyter_client.session import Session
  File "/usr/local/lib/python3.9/site-packages/jupyter_client/__init__.py", line 6, in <module>
    from .asynchronous import AsyncKernelClient  # noqa
  File "/usr/local/lib/python3.9/site-packages/jupyter_client/asynchronous/__init__.py", line 1, in <module>
    from .client import AsyncKernelClient  # noqa
  File "/usr/local/lib/python3.9/site-packages/jupyter_client/asynchronous/client.py", line 6, in <module>
    from jupyter_client.channels import HBChannel
  File "/usr/local/lib/python3.9/site-packages/jupyter_client/channels.py", line 15, in <module>
    from .session import Session
  File "/usr/local/lib/python3.9/site-packages/jupyter_client/session.py", line 52, in <module>
    from jupyter_client.jsonutil import extract_dates
  File "/usr/local/lib/python3.9/site-packages/jupyter_client/jsonutil.py", line 15, in <module>
    from dateutil.parser import parse as _dateutil_parse  # type: ignore
ModuleNotFoundError: No module named 'dateutil'

I have tried the following fixes, to no avail:

  1. Completely uninstall, then reinstally jupyter and related packages (including dependencies)
  2. Check which python I have and what is pointing where (this error indicates I’m getting the error with my Python 3.9 installation)
  3. Run a test.py code which imports dateutil. It also cannot find dateutil.
  4. Install dateutil using pip. I still get the error even though python-dateutil shows up during pip list

Any ideas as to what might be wrong? My suspicion is that I have a path somewhere that’s pointing to the wrong thing, which is why Python3 on my machine can’t find the dateutil package.

2

Did you try to uninstall and reinstall just dateutil as suggested in comments here?

pip uninstall python-dateutil
pip install python-dateutil

Maybe try adding --force-reinstall --upgrade to the install line?

1 Like
3

--force-reinstall --upgrade worked!!! Thank you.

1 Like