password with umlauts leads to error

[mrtopf]

Error message in camper:

  File "/home/cs/camper/src/userbase/userbase/db/users.py", line 24, in to_bson
    return "HASH:"+hashlib.new("md5",value).hexdigest()
  File "/opt/python/lib/python2.7/hashlib.py", line 124, in __hash_new
    return __get_builtin_constructor(name)(string)
  File "/opt/python/lib/python2.7/hashlib.py", line 91, in __get_builtin_constructor
    raise ValueError('unsupported hash type %s' % name)