[nixdorf@einstein ~]# python3
Python 3.5.1 (default, Mar  3 2016, 09:29:07) 
[GCC 5.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import nbconvert
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3.5/site-packages/nbconvert/__init__.py", line 4, in <module>
    from .exporters import *
  File "/usr/lib/python3.5/site-packages/nbconvert/exporters/__init__.py", line 1, in <module>
    from .export import *
  File "/usr/lib/python3.5/site-packages/nbconvert/exporters/export.py", line 9, in <module>
    import entrypoints
ImportError: No module named 'entrypoints'
>>>