human
Solve the following python programming problem given the following code:
def _evaluate(polls_by_name, comment, request, csrf_token) : 
    def evaluate(m) : 
        name = m.group ('name') 
        poll = polls_by_name [name] 
        show_poll = (str (poll.pk) == request.GET.get ('show_poll')) 
        show_results = (((not poll.has_user_voted) and show_poll) or (poll.has_user_voted and (not show_poll))) 
        if (poll.is_closed or (poll.can_show_results and show_results)) : 
            return _render_results (poll, comment, request, csrf_token) 
else : 
            return _render_form (poll, comment, request, csrf_token) 
return polls_by_name 

    
    

    Fix the buggy line: return polls_by_name
assistant
#Here is Python code to fix the buggy line: return polls_by_name
.

return def evaluate(