TypeError: Cannot explicitly set an encoding with a unicode string

[SimonSapin]

I got this error when running the preprocessor. Removing encoding="utf8", in calls to html5lib.parse() "solved" it, but I have no idea if that was the right thing to do. The whole code could probably use a pass of looking at what’s supposed to by bytes and what’s supposed to be Unicode ;)

Traceback (most recent call last):
  File "/home/simon/.local/bin/css-preprocess", line 9, in <module>
    load_entry_point('css-preprocessor==0.0.0', 'console_scripts', 'css-preprocess')()
  File "/home/simon/projects/css/css-preprocessor/preprocess.py", line 67, in main
    doc.preprocess()
  File "/home/simon/projects/css/css-preprocessor/preprocess.py", line 986, in preprocess
    self.document = parseDocument(self.html)
  File "/home/simon/projects/css/css-preprocessor/preprocess.py", line 124, in parseDocument
    doc = html5lib.parse(str, treebuilder='lxml', encoding='utf-8', namespaceHTMLElements=False)
  File "/home/simon/.virtualenvs/css-preprocessor/lib/python2.7/site-packages/html5lib/html5parser.py", line 28, in parse
    return p.parse(doc, encoding=encoding)
  File "/home/simon/.virtualenvs/css-preprocessor/lib/python2.7/site-packages/html5lib/html5parser.py", line 224, in parse
    parseMeta=parseMeta, useChardet=useChardet)
  File "/home/simon/.virtualenvs/css-preprocessor/lib/python2.7/site-packages/html5lib/html5parser.py", line 88, in _parse
    parser=self, **kwargs)
  File "/home/simon/.virtualenvs/css-preprocessor/lib/python2.7/site-packages/html5lib/tokenizer.py", line 40, in __init__
    self.stream = HTMLInputStream(stream, encoding, parseMeta, useChardet)
  File "/home/simon/.virtualenvs/css-preprocessor/lib/python2.7/site-packages/html5lib/inputstream.py", line 128, in HTMLInputStream
    raise TypeError("Cannot explicitly set an encoding with a unicode string")
TypeError: Cannot explicitly set an encoding with a unicode string

[SimonSapin]

Fixed in 479afde.