Setting Authenticator and Spawner classes

[Spencer Ogden]

I am trying to setup of jupyterhub testing environment on RHEL 6. I have compiled Python3.6 from source, created a virtualenv and used pip to install the latest jupyterhub packages:

pip install jupyter jupyterhub jupyterhub-dummyauthenticator jupyterhub-simplespawner

Using a barebones config file: jupyterhub_config.py:
c.JupyterHub.spawner_class = 'simplespawner.SimpleLocalProcessSpawner'
c.JupyterHub.authenticator_class = 'dummyauthenticator.DummyAuthenticator'

I get the following error:
$ jupyterhub
[snip out help information]
[C 2017-03-21 12:52:00.230 JupyterHub application:91] The 'authenticator_class' trait of <jupyterhub.app.JupyterHub object at 0x7fba6ec06898> instance must be a type, but 'dummyauthenticator.DummyAuthenticator' could not be imported

I can import the module in a python session (and it is show that it imports from the virtualenv):
$ python
Python 3.6.0 (default, Mar 21 2017, 08:57:23)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-17)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import dummyauthenticator
>>> dummyauthenticator.__file__
'/home/portcon/.envs/kate/lib/python3.6/site-packages/dummyauthenticator/__init__.py'

Is there a change in the config layout for these parameters in the latest version?

Thanks,
Spencer

[Yuvi Panda]

heya!

Can you do a `which jupyterhub` to make sure that jupyterhub and the
dummyauthenticator are installed into the same environment?

Also can you paste the output of 'pip list'?

Thank you!

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[Spencer Ogden]

You bet

On Tuesday, March 21, 2017 at 4:22:16 PM UTC-4, Yuvi Panda wrote:

Can you do a `which jupyterhub` to make sure that jupyterhub and the
dummyauthenticator are installed into the same environment?

 $ which jupyterhub
~/.envs/kate/bin/jupyterhub

 

Also can you paste the output of 'pip list'? 

$ pip list
alembic (0.9.1)
appdirs (1.4.3)
bleach (2.0.0)
decorator (4.0.11)
docker-py (1.10.6)
docker-pycreds (0.2.1)
dockerspawner (0.7.0)
entrypoints (0.2.2)
escapism (0.0.1)
html5lib (0.999999999)
ipykernel (4.5.2)
ipython (5.3.0)
ipython-genutils (0.2.0)
ipywidgets (6.0.0)
Jinja2 (2.9.5)
jsonschema (2.6.0)
jupyter (1.0.0)
jupyter-client (5.0.0)
jupyter-console (5.1.0)
jupyter-core (4.3.0)
jupyterhub (0.7.2)
jupyterhub-dummyauthenticator (0.1)
jupyterhub-simplespawner (0.1)
Mako (1.0.6)
MarkupSafe (1.0)
mistune (0.7.4)
nbconvert (5.1.1)
nbformat (4.3.0)
notebook (4.4.1)
packaging (16.8)
pamela (0.3.0)
pandocfilters (1.4.1)
pexpect (4.2.1)
pickleshare (0.7.4)
pip (9.0.1)
prompt-toolkit (1.0.13)
ptyprocess (0.5.1)
Pygments (2.2.0)
pyparsing (2.2.0)
python-dateutil (2.6.0)
python-editor (1.0.3)
pyzmq (16.0.2)
qtconsole (4.2.1)
requests (2.13.0)
setuptools (34.3.2)
simplegeneric (0.8.1)
six (1.10.0)
SQLAlchemy (1.1.6)
terminado (0.6)
testpath (0.3)
tornado (4.4.2)
traitlets (4.3.2)
wcwidth (0.1.7)
webencodings (0.5)
websocket-client (0.40.0)
wheel (0.29.0)
widgetsnbextension (2.0.0)

 

[MinRK]

Can you import the authenticator in the config file?

from dummyauthenticator import DummyAuthenticator
c.JupyterHub.authenticator_class = DummyAuthenticator

usually when things behave differently, it’s an env/PATH issue, so you might start dumping sys.path to be sure it’s what you expect.

-Min

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[Spencer Ogden]

On Wednesday, March 22, 2017 at 11:37:27 AM UTC-4, Min RK wrote:

Can you import the authenticator in the config file?

from dummyauthenticator import DummyAuthenticator
c.JupyterHub.authenticator_class = DummyAuthenticator

Hi Min,

This construction worked. Thanks very much,

Spencer

[MinRK]

Super weird! There wasn't a typo in the string, or anything?

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