(11/Jul/2013:23:13:36) HTTP Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/cherrypy/_cprequest.py", line 656, in respond
    response.body = self.handler()
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/encoding.py", line 188, in __call__
    self.body = self.oldhandler(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/cherrypy/_cpdispatch.py", line 34, in __call__
    return self.callable(*self.args, **self.kwargs)
  File "/usr/lib/calibre/calibre/library/server/utils.py", line 54, in do
    ans = func(*args, **kwargs)
  File "/usr/lib/calibre/calibre/library/server/utils.py", line 108, in authenticate
    self.secret)
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/auth_digest.py", line 342, in digest_auth
    ha1 = get_ha1(realm, auth.username)
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/auth_digest.py", line 55, in get_ha1
    return md5_hex('%s:%s:%s' % (username, realm, password))
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/auth_digest.py", line 30, in <lambda>
    md5_hex = lambda s: md5(ntob(s)).hexdigest()
  File "/usr/lib/python2.7/site-packages/cherrypy/_cpcompat.py", line 58, in ntob
    assert_native(n)
  File "/usr/lib/python2.7/site-packages/cherrypy/_cpcompat.py", line 96, in assert_native
    raise TypeError("n must be a native str (got %s)" % type(n).__name__)
TypeError: n must be a native str (got unicode)

(11/Jul/2013:23:13:37) HTTP Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/cherrypy/_cprequest.py", line 656, in respond
    response.body = self.handler()
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/encoding.py", line 188, in __call__
    self.body = self.oldhandler(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/cherrypy/_cpdispatch.py", line 34, in __call__
    return self.callable(*self.args, **self.kwargs)
  File "/usr/lib/calibre/calibre/library/server/utils.py", line 54, in do
    ans = func(*args, **kwargs)
  File "/usr/lib/calibre/calibre/library/server/utils.py", line 108, in authenticate
    self.secret)
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/auth_digest.py", line 342, in digest_auth
    ha1 = get_ha1(realm, auth.username)
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/auth_digest.py", line 55, in get_ha1
    return md5_hex('%s:%s:%s' % (username, realm, password))
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/auth_digest.py", line 30, in <lambda>
    md5_hex = lambda s: md5(ntob(s)).hexdigest()
  File "/usr/lib/python2.7/site-packages/cherrypy/_cpcompat.py", line 58, in ntob
    assert_native(n)
  File "/usr/lib/python2.7/site-packages/cherrypy/_cpcompat.py", line 96, in assert_native
    raise TypeError("n must be a native str (got %s)" % type(n).__name__)
TypeError: n must be a native str (got unicode)

(11/Jul/2013:23:13:38) HTTP Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/cherrypy/_cprequest.py", line 656, in respond
    response.body = self.handler()
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/encoding.py", line 188, in __call__
    self.body = self.oldhandler(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/cherrypy/_cpdispatch.py", line 34, in __call__
    return self.callable(*self.args, **self.kwargs)
  File "/usr/lib/calibre/calibre/library/server/utils.py", line 54, in do
    ans = func(*args, **kwargs)
  File "/usr/lib/calibre/calibre/library/server/utils.py", line 108, in authenticate
    self.secret)
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/auth_digest.py", line 342, in digest_auth
    ha1 = get_ha1(realm, auth.username)
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/auth_digest.py", line 55, in get_ha1
    return md5_hex('%s:%s:%s' % (username, realm, password))
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/auth_digest.py", line 30, in <lambda>
    md5_hex = lambda s: md5(ntob(s)).hexdigest()
  File "/usr/lib/python2.7/site-packages/cherrypy/_cpcompat.py", line 58, in ntob
    assert_native(n)
  File "/usr/lib/python2.7/site-packages/cherrypy/_cpcompat.py", line 96, in assert_native
    raise TypeError("n must be a native str (got %s)" % type(n).__name__)
TypeError: n must be a native str (got unicode)

(11/Jul/2013:23:13:38) HTTP Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/cherrypy/_cprequest.py", line 656, in respond
    response.body = self.handler()
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/encoding.py", line 188, in __call__
    self.body = self.oldhandler(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/cherrypy/_cpdispatch.py", line 34, in __call__
    return self.callable(*self.args, **self.kwargs)
  File "/usr/lib/calibre/calibre/library/server/utils.py", line 54, in do
    ans = func(*args, **kwargs)
  File "/usr/lib/calibre/calibre/library/server/utils.py", line 108, in authenticate
    self.secret)
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/auth_digest.py", line 342, in digest_auth
    ha1 = get_ha1(realm, auth.username)
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/auth_digest.py", line 55, in get_ha1
    return md5_hex('%s:%s:%s' % (username, realm, password))
  File "/usr/lib/python2.7/site-packages/cherrypy/lib/auth_digest.py", line 30, in <lambda>
    md5_hex = lambda s: md5(ntob(s)).hexdigest()
  File "/usr/lib/python2.7/site-packages/cherrypy/_cpcompat.py", line 58, in ntob
    assert_native(n)
  File "/usr/lib/python2.7/site-packages/cherrypy/_cpcompat.py", line 96, in assert_native
    raise TypeError("n must be a native str (got %s)" % type(n).__name__)
TypeError: n must be a native str (got unicode)