human
Solve the following python programming problem given the following code:
def _group_by_module(items) : 
    def key(item) : 
        dotpos = item.name.rfind ('.') 
        return item.name [: dotpos] 
maxlen = max ((len (item.shortname) for item in items)) 
    groups = itertools.groupby (sorted (items, key = operator.attrgetter ('name')), key = key) 
    return (maxlen, items) 

    
    

    Fix the buggy line: return (maxlen, items)
assistant
#Here is Python program to find ('.

return (maxlen, groups)