Traceback (most recent call last):
File "/srv/conda/envs/notebook/bin/jupyterhub-singleuser", line 7, in <module>
from jupyterhub.singleuser import main
File "/srv/conda/envs/notebook/lib/python3.9/site-packages/jupyterhub/singleuser/__init__.py", line 5, in <module>
from .app import main
File "/srv/conda/envs/notebook/lib/python3.9/site-packages/jupyterhub/singleuser/app.py", line 16, in <module>
App = import_item(JUPYTERHUB_SINGLEUSER_APP)
File "/srv/conda/envs/notebook/lib/python3.9/site-packages/traitlets/utils/importstring.py", line 30, in import_item
module = __import__(package, fromlist=[obj])
ModuleNotFoundError: No module named 'notebook.notebookapp'
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