In my Py3 environment, I uninstalled traitlets and reinstalled it. The problem went away. Not sure exactly how it broke in the first place.
Thanks for your help. On Sat, Apr 1, 2017 at 10:17 AM, Arvind Kandaswamy <[email protected]> wrote: > I installed jupyter notebook as part of anaconda. After running into > issues, I uninstalled jupyter and reinstalled. Still the same issue. Here > is the output: > > > > # packages in environment at /anaconda: > # > _license 1.1 py36_1 > alabaster 0.7.9 py36_0 > anaconda custom py36_0 > anaconda-clean 1.1.0 py36_0 > anaconda-client 1.6.0 py36_0 > anaconda-navigator 1.5.1 py36_0 > anaconda-project 0.4.1 py36_0 > appnope 0.1.0 py36_0 > appscript 1.0.1 py36_0 > astroid 1.4.9 py36_0 > astropy 1.3 np111py36_0 > awscli 1.11.68 <pip> > babel 2.3.4 py36_0 > backports 1.0 py36_0 > beautifulsoup4 4.5.3 py36_0 > bitarray 0.8.1 py36_0 > blaze 0.10.1 py36_0 > bokeh 0.12.4 py36_0 > boto 2.45.0 py36_0 > boto 2.46.1 <pip> > boto3 1.4.4 <pip> > botocore 1.5.31 <pip> > bottleneck 1.2.0 np111py36_0 > bz2file 0.98 <pip> > cffi 1.9.1 py36_0 > chardet 2.3.0 py36_0 > chest 0.2.3 py36_0 > click 6.7 py36_0 > cloudpickle 0.2.2 py36_0 > clyent 1.2.2 py36_0 > colorama 0.3.7 py36_0 > conda 4.3.15 py36_0 > conda-env 2.6.0 0 > configobj 5.0.6 py36_0 > contextlib2 0.5.4 py36_0 > cryptography 1.7.1 py36_0 > curl 7.52.1 0 > cycler 0.10.0 py36_0 > cython 0.25.2 py36_0 > cytoolz 0.8.2 py36_0 > dask 0.13.0 py36_0 > datashape 0.5.4 py36_0 > decorator 4.0.11 py36_0 > decorator 4.0.2 <pip> > dill 0.2.5 py36_0 > docutils 0.13.1 py36_0 > docutils 0.12 <pip> > entrypoints 0.2.2 py36_0 > et_xmlfile 1.0.1 py36_0 > fastcache 1.0.2 py36_1 > flask 0.12 py36_0 > flask-cors 3.0.2 py36_0 > freetype 2.5.5 2 > get_terminal_size 1.0.0 py36_0 > gevent 1.2.1 py36_0 > gnureadline 6.3.3 <pip> > greenlet 0.4.11 py36_0 > h5py 2.6.0 np111py36_2 > hdf5 1.8.17 1 > heapdict 1.0.0 py36_1 > icu 54.1 0 > idna 2.2 py36_0 > imagesize 0.7.1 py36_0 > ipykernel 4.5.2 py36_0 > ipython 4.0.0 <pip> > ipython 5.1.0 py36_1 > ipython_genutils 0.1.0 py36_0 > ipywidgets 5.2.2 py36_1 > isort 4.2.5 py36_0 > itsdangerous 0.24 py36_0 > jbig 2.1 0 > jdcal 1.3 py36_0 > jedi 0.9.0 py36_1 > jfx-util-api 0.0.2 <pip> > jfx-util-aws 0.0.2 <pip> > jfx-util-logging 0.0.1 <pip> > jfx-util-okta 0.0.1 <pip> > jfx-util-spark 0.0.1 <pip> > jinja2 2.9.4 py36_0 > jmespath 0.8.0 <pip> > jpeg 9b 0 > jsonschema 2.5.1 py36_0 > jupyter 1.0.0 py36_3 > jupyter_client 4.4.0 py36_0 > jupyter_console 5.0.0 py36_0 > jupyter_core 4.2.1 py36_0 > lazy-object-proxy 1.2.2 py36_0 > libiconv 1.14 0 > libpng 1.6.27 0 > libtiff 4.0.6 3 > libxml2 2.9.4 0 > libxslt 1.1.29 0 > llvmlite 0.15.0 py36_0 > locket 0.2.0 py36_1 > lxml 3.7.2 py36_0 > markupsafe 0.23 py36_2 > matplotlib 2.0.0 np111py36_0 > mistune 0.7.3 py36_1 > mkl 2017.0.1 0 > mkl-service 1.1.2 py36_3 > mpmath 0.19 py36_1 > multipledispatch 0.4.9 py36_0 > nbconvert 4.2.0 py36_0 > nbformat 4.2.0 py36_0 > networkx 1.11 py36_0 > nltk 3.2.2 py36_0 > nose 1.3.7 py36_1 > notebook 4.3.1 py36_0 > numba 0.30.1 np111py36_0 > numexpr 2.6.1 np111py36_2 > numpy 1.11.3 py36_0 > numpydoc 0.6.0 py36_0 > odo 0.5.0 py36_1 > openpyxl 2.4.1 py36_0 > openssl 1.0.2k 1 > pandas 0.19.2 np111py36_1 > partd 0.3.7 py36_0 > path.py 8.1.1 <pip> > path.py 10.0 py36_0 > pathlib2 2.2.0 py36_0 > patsy 0.4.1 py36_0 > pep8 1.7.0 py36_0 > pexpect 3.3 <pip> > pexpect 4.2.1 py36_0 > pickleshare 0.5 <pip> > pickleshare 0.7.4 py36_0 > pillow 4.0.0 py36_0 > pip 9.0.1 py36_1 > ply 3.9 py36_0 > prompt_toolkit 1.0.9 py36_0 > psutil 5.0.1 py36_0 > psycopg2 2.7.1 <pip> > ptyprocess 0.5.1 py36_0 > py 1.4.32 py36_0 > py4j 0.10.4 <pip> > pyasn1 0.1.9 py36_0 > pycosat 0.6.1 py36_1 > pycparser 2.17 py36_0 > pycrypto 2.6.1 py36_4 > pycurl 7.43.0 py36_2 > pyflakes 1.5.0 py36_0 > pygments 2.1.3 py36_0 > pylint 1.6.4 py36_1 > pyopenssl 16.2.0 py36_0 > pyparsing 2.1.4 py36_0 > pyqt 5.6.0 py36_1 > pytables 3.3.0 np111py36_0 > pytest 3.0.5 py36_0 > python 3.6.0 0 > python-dateutil 2.6.0 py36_0 > python-dateutil 2.4.2 <pip> > python.app 1.2 py36_4 > pytz 2016.10 py36_0 > pyyaml 3.12 py36_0 > pyzmq 16.0.2 py36_0 > qt 5.6.2 0 > qtawesome 0.4.3 py36_0 > qtconsole 4.2.1 py36_1 > qtpy 1.2.1 py36_0 > readline 6.2 2 > redis 3.2.0 0 > redis-py 2.10.5 py36_0 > requests 2.12.4 py36_0 > requests 2.7.0 <pip> > rope 0.9.4 py36_1 > ruamel_yaml 0.11.14 py36_1 > s3transfer 0.1.10 <pip> > scikit-image 0.12.3 np111py36_1 > scikit-learn 0.18.1 np111py36_1 > scipy 0.18.1 np111py36_1 > seaborn 0.7.1 py36_0 > setuptools 27.2.0 py36_0 > simplegeneric 0.8.1 py36_1 > singledispatch 3.4.0.3 py36_0 > sip 4.18 py36_0 > six 1.10.0 py36_0 > six 1.9.0 <pip> > smart-open 1.5.1 <pip> > snowballstemmer 1.2.1 py36_0 > sockjs-tornado 1.0.3 py36_0 > sphinx 1.5.1 py36_0 > spyder 3.1.2 py36_0 > sqlalchemy 1.1.5 py36_0 > sqlite 3.13.0 0 > statsmodels 0.6.1 np111py36_1 > sympy 1.0 py36_0 > terminado 0.6 py36_0 > tk 8.5.18 0 > toolz 0.8.2 py36_0 > tornado 4.4.2 py36_0 > traitlets 4.3.1 py36_0 > traitlets 4.3.2 <pip> > unicodecsv 0.14.1 py36_0 > virtualenv 15.1.0 <pip> > wcwidth 0.1.7 py36_0 > werkzeug 0.11.15 py36_0 > wheel 0.29.0 py36_0 > widgetsnbextension 1.2.6 py36_0 > wrapt 1.10.8 py36_0 > xlrd 1.0.0 py36_0 > xlsxwriter 0.9.6 py36_0 > xlwings 0.10.2 py36_0 > xlwt 1.2.0 py36_0 > xz 5.2.2 1 > yaml 0.1.6 0 > zlib 1.2.8 3 > > # conda environments: > > # > > py2 /anaconda/envs/py2 > > py3 /anaconda/envs/py3 > > root * /anaconda > > > which python: > > /anaconda/bin/python > > On Sat, Apr 1, 2017 at 10:09 AM, Paul Hobson <[email protected]> wrote: > >> How exactly did you install jupyter notebook? >> >> what are the output of "conda list", "conda info -e", and "which python"? >> >> On Fri, Mar 31, 2017 at 5:37 PM, Arvind Kandaswamy < >> [email protected]> wrote: >> >>> When trying to start Jupyter with the command Jupyter Notebook, I am >>> getting this below error: >>> >>> File "/anaconda/bin/jupyter-notebook", line 4, in <module> >>> import notebook.notebookapp >>> File "/anaconda/lib/python3.6/site-packages/notebook/notebookapp.py", >>> line 63, in <module> >>> from .services.contents.manager import ContentsManager >>> File "/anaconda/lib/python3.6/site- >>> packages/notebook/services/contents/manager.py", line 16, in <module> >>> from nbformat import sign, validate, ValidationError >>> File "/anaconda/lib/python3.6/site-packages/nbformat/sign.py", line 24, >>> in <module> >>> from traitlets import ( >>> ImportError: cannot import name 'default' >>> >>> >>> Any idea what is missing? >>> >>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Project Jupyter" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To post to this group, send email to [email protected]. >>> To view this discussion on the web visit https://groups.google.com/d/ms >>> gid/jupyter/a566d1c7-237a-4762-ac3d-6931867ba951%40googlegroups.com >>> <https://groups.google.com/d/msgid/jupyter/a566d1c7-237a-4762-ac3d-6931867ba951%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "Project Jupyter" group. >> To unsubscribe from this topic, visit https://groups.google.com/d/to >> pic/jupyter/q0HzVOzxcyA/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> To post to this group, send email to [email protected]. >> To view this discussion on the web visit https://groups.google.com/d/ms >> gid/jupyter/CADT3MECdZpuy2Zs9DUXjwcGaWkFEEij1sv9kuBMcYLcbxwN >> LiQ%40mail.gmail.com >> <https://groups.google.com/d/msgid/jupyter/CADT3MECdZpuy2Zs9DUXjwcGaWkFEEij1sv9kuBMcYLcbxwNLiQ%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "Project Jupyter" group. 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