Variety don't work and i try launch to the terminal but report error with python

[Carlos Arturo]

I don't have the variety version, it doesn't work
I have Ubuntu 16.04 LTS with 8GB RAM, graphic card nvidia geforce 820m and processor i5-5400u
I use Unity 7.4.0

This line /opt/extras.ubuntu.com/variety/bin/variety -v don't work, use 'cat ~/.config/variety/variety.log' and result:
result in attachment 'variety.log.txt'

and run directly from directory '/usr/bin' with python 2.7 and result:
Traceback (most recent call last):
  File "variety", line 38, in <module>
    import variety
  File "/usr/lib/python2.7/dist-packages/variety/__init__.py", line 111, in <module>
    from variety import VarietyWindow
  File "/usr/lib/python2.7/dist-packages/variety/VarietyWindow.py", line 22, in <module>
    from variety.FacebookHelper import FacebookHelper
  File "/usr/lib/python2.7/dist-packages/variety/FacebookHelper.py", line 55, in <module>
    from variety.Util import Util
  File "/usr/lib/python2.7/dist-packages/variety/Util.py", line 16, in <module>
    import bs4
  File "/usr/lib/python2.7/dist-packages/bs4/__init__.py", line 30, in <module>
    from .builder import builder_registry, ParserRejectedMarkup
  File "/usr/lib/python2.7/dist-packages/bs4/builder/__init__.py", line 314, in <module>
    from . import _html5lib
  File "/usr/lib/python2.7/dist-packages/bs4/builder/_html5lib.py", line 70, in <module>
    class TreeBuilderForHtml5lib(html5lib.treebuilders._base.TreeBuilder):
AttributeError: 'module' object has no attribute '_base'

and python3:
Traceback (most recent call last):
  File "variety", line 38, in <module>
    import variety
ImportError: No module named 'variety'

I try to run variety from terminal:
Traceback (most recent call last):
  File "/usr/bin/variety", line 38, in <module>
    import variety
  File "/usr/lib/python2.7/dist-packages/variety/__init__.py", line 111, in <module>
    from variety import VarietyWindow
  File "/usr/lib/python2.7/dist-packages/variety/VarietyWindow.py", line 22, in <module>
    from variety.FacebookHelper import FacebookHelper
  File "/usr/lib/python2.7/dist-packages/variety/FacebookHelper.py", line 55, in <module>
    from variety.Util import Util
  File "/usr/lib/python2.7/dist-packages/variety/Util.py", line 16, in <module>
    import bs4
  File "/usr/lib/python2.7/dist-packages/bs4/__init__.py", line 30, in <module>
    from .builder import builder_registry, ParserRejectedMarkup
  File "/usr/lib/python2.7/dist-packages/bs4/builder/__init__.py", line 314, in <module>
    from . import _html5lib
  File "/usr/lib/python2.7/dist-packages/bs4/builder/_html5lib.py", line 70, in <module>
    class TreeBuilderForHtml5lib(html5lib.treebuilders._base.TreeBuilder):
AttributeError: 'module' object has no attribute '_base'

And finally I re-install and don't work