root@kali:~/sqlmate#  python sqlmate
Traceback (most recent call last):
  File "sqlmate", line 4, in 
    from bs4 import BeautifulSoup
  File "/usr/local/lib/python2.7/dist-packages/bs4/__init__.py", line 30, in 
    from .builder import builder_registry, ParserRejectedMarkup
  File "/usr/local/lib/python2.7/dist-packages/bs4/builder/__init__.py", line 314, in 
    from . import _html5lib
  File "/usr/local/lib/python2.7/dist-packages/bs4/builder/_html5lib.py", line 70, in 
    class TreeBuilderForHtml5lib(html5lib.treebuilders._base.TreeBuilder):
AttributeError: 'module' object has no attribute '_base'