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Error: ImportError: cannot import name 'AsyncKernelManager' from 'jupyter_client` #486

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jonah-juul opened this issue Apr 2, 2020 · 7 comments
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Error: ImportError: cannot import name 'AsyncKernelManager' from 'jupyter_client` #486

jonah-juul opened this issue Apr 2, 2020 · 7 comments

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@jonah-juul
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jonah-juul commented Apr 2, 2020 •
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Error recently appeared past 48 hours. Wondering if anyone has run into this before and knows what root cause could be. Occurs right after pm.execute_notebook.

Using Docker container FROM jupyter/scipy-notebook:latest

Executing:   0%|                                                                                                                                                         | 0/8 [00:00<?, ?cell/s]
Traceback (most recent call last):
  File "/opt/conda/lib/python3.7/site-packages/traitlets/traitlets.py", line 528, in get
    value = obj._trait_values[self.name]
KeyError: 'kernel_manager_class'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/conda/lib/python3.7/site-packages/papermill/execute.py", line 104, in execute_notebook
    **engine_kwargs
  File "/opt/conda/lib/python3.7/site-packages/papermill/engines.py", line 49, in execute_notebook_with_engine
    return self.get_engine(engine_name).execute_notebook(nb, kernel_name, **kwargs)
  File "/opt/conda/lib/python3.7/site-packages/papermill/engines.py", line 343, in execute_notebook
    cls.execute_managed_notebook(nb_man, kernel_name, log_output=log_output, **kwargs)
  File "/opt/conda/lib/python3.7/site-packages/papermill/engines.py", line 402, in execute_managed_notebook
    return PapermillNotebookClient(nb_man, **final_kwargs).execute()
  File "/opt/conda/lib/python3.7/site-packages/papermill/clientwrap.py", line 36, in execute
    with self.setup_kernel(**kwargs):
  File "/opt/conda/lib/python3.7/contextlib.py", line 112, in __enter__
    return next(self.gen)
  File "/opt/conda/lib/python3.7/site-packages/nbclient/client.py", line 401, in setup_kernel
    self.start_kernel_manager()
  File "/opt/conda/lib/python3.7/site-packages/nbclient/client.py", line 328, in start_kernel_manager
    self.km = self.kernel_manager_class(kernel_name=self.kernel_name, config=self.config)
  File "/opt/conda/lib/python3.7/site-packages/traitlets/traitlets.py", line 556, in __get__
    return self.get(obj, cls)
  File "/opt/conda/lib/python3.7/site-packages/traitlets/traitlets.py", line 535, in get
    value = self._validate(obj, dynamic_default())
  File "/opt/conda/lib/python3.7/site-packages/nbclient/client.py", line 240, in _kernel_manager_class_default
    from jupyter_client import AsyncKernelManager
ImportError: cannot import name 'AsyncKernelManager' from 'jupyter_client' (/opt/conda/lib/python3.7/site-packages/jupyter_client/__init__.py)
@jonah-juul
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Found error - update to jupyter-client, pegging it to jupyter-client==6.1.2 fixes

@MSeal
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MSeal commented Apr 2, 2020

Yes the dependency chain is a little tighter for the most recent updates on upstream tools. >=6.1.2 should be sufficient and stable now

@mansiparashar
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Hey, updating isn't fixing the error either

@MSeal
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MSeal commented Jun 17, 2020

Check your jupyter package versions, and make sure you're running in the environment you think you are.

python -c "from jupyter_client import AsyncKernelManager" is a test for if this issue should be occurring.

@an1lam an1lam mentioned this issue Jul 5, 2020
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@ttpro1995
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Update jupyter-client work for me

pip install -U jupyter-client

ajbozarth added a commit to ajbozarth/papermill that referenced this issue Aug 13, 2020
@ajbozarth
Set jupyter_client version in requirements.txt
6fc7d5c 
As previously raised in nteract#486 nteract#492 nteract#500 nteract#522 and nteract#523 if papermill is
used in an environment with an older version of `jupyter_client` it will
throw an error. This is caused by the dependency `nbclient>=0.2.0`
that depends on `jupyter_client>=6.1.0`. This dependency is overridden
by papermill by having `jupyter_client` in `requirements.txt` without a
version, meaning any version (even an older one) is accepted if already
installed. To make sure the expected version of `jupyter_client` is
installed we should set `jupyter_client>=6.1.0` to match `nbclient`.
This was referenced Aug 13, 2020
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MSeal pushed a commit that referenced this issue Aug 17, 2020
@ajbozarth
Set jupyter_client version in requirements.txt (#527)
c13a1f4 
As previously raised in #486 #492 #500 #522 and #523 if papermill is
used in an environment with an older version of `jupyter_client` it will
throw an error. This is caused by the dependency `nbclient>=0.2.0`
that depends on `jupyter_client>=6.1.0`. This dependency is overridden
by papermill by having `jupyter_client` in `requirements.txt` without a
version, meaning any version (even an older one) is accepted if already
installed. To make sure the expected version of `jupyter_client` is
installed we should set `jupyter_client>=6.1.0` to match `nbclient`.
@a114383 a114383 mentioned this issue Jan 12, 2021
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@onepunchmate
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Found error - update to jupyter-client, pegging it to jupyter-client==6.1.2

Hey, I just encountered a similar problem. do you mind elaborate on this part coz I am quite new to python... I have no idea how to do the pegging step.

@ManPython ManPython mentioned this issue Jul 2, 2021
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@ManPython
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ManPython commented Jul 2, 2021 •
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Found error - update to jupyter-client, pegging it to jupyter-client==6.1.2

Hey, I just encountered a similar problem. do you mind elaborate on this part coz I am quite new to python... I have no idea how to do the pegging step.

Get this as pip install jupyter-client==6.1.2 but take note around some possible conflict.

Requirement already satisfied: ipython-genutils in .p37/lib/python3.7/site-packages (from traitlets->jupyter-client==6.1.2) (0.2.0)
Installing collected packages: jupyter-client
  Attempting uninstall: jupyter-client
    Found existing installation: jupyter-client 6.1.12
    Uninstalling jupyter-client-6.1.12:
      Successfully uninstalled jupyter-client-6.1.12
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
nbclient 0.5.3 requires jupyter-client>=6.1.5, but you have jupyter-client 6.1.2 which is incompatible.
Successfully installed jupyter-client-6.1.2

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@MSeal @ttpro1995 @ManPython @mansiparashar @jonah-juul @onepunchmate