Error message in Ubuntu 18.04

[hemanthsavasere]

I am getting this error message

File "/usr/local/lib/python2.7/dist-packages/py2nb/tools.py", line 7, in
from .converter import convert
File "/usr/local/lib/python2.7/dist-packages/py2nb/converter.py", line 3, in
from IPython.nbformat.v3 import nbpy
ImportError: No module named v3

[jzimmerlin]

Using anaconda, I needed to install the "ipython" and "nbformat" packages.

conda install ipython nbformat