def connect(self): 
        try:
            self.connection = pymongo.Connection(self.host, self.port)
            self.db = self.connection[self.name]
        except AutoReconnect:
            raise DatabaseException("It's not possible connect to the database")
def _prefix(kindpats):
    """Whether all the patterns match a prefix (i.e. recursively)"""
    for kind, pat, source in kindpats:
        if kind not in ("path", "relpath"):
            return False
    return True