twisted.words.test.test_xmlstream.XmlStreamTest.test_receiveBadXML fails with Python trunk@HEAD

New submission from ivank <[email protected]>:

Python 2.7r72791:

{{{
[ERROR]: twisted.words.test.test_xmlstream.XmlStreamTest.test_receiveBadXML

Traceback (most recent call last):
  File "/usr/local/lib/python2.7/site-packages/twisted/words/protocols/jabber/client.py", line 119, in _cbAuthQuery
    digest = xmlstream.hashPassword(self.xmlstream.sid, password)
  File "/usr/local/lib/python2.7/site-packages/twisted/words/protocols/jabber/xmlstream.py", line 46, in hashPassword
    return sha1("%s%s" % (sid, password)).hexdigest()
exceptions.TypeError: Unicode-objects must be encoded before hashing
}}}

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Type     : defect
Component: words
Keywords : 
Priority : normal
Nosy     : 
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http://twistedmatrix.com/trac/ticket/3847