Here we go again another nightmare

[snippsat]

Error:
File "c:\python27\lib\site-packages\pip\_vendor\html5lib\treebuilders\etree.py
", line 19, in getETreeBuilder
   ElementTreeCommentType = ElementTree.Comment("asd").tag
AttributeError: 'module' object has no attribute 'Comment'

Search an see if you have named a file etree.py
I you have rename it.