def join(p_list, sep=None): # real signature unknown; restored from __doc__
    """
    join(list [,sep]) -> string
    joinfields(list [,sep]) -> string
    
    Return a string composed of the words in list, with
    intervening occurrences of sep.  Sep defaults to a single
    space.
    
    (join and joinfields are synonymous)
    """
    return ""