相关疑难解决方法(0)

我正在尝试将我的代码编译成Python 3模块.我在IDLE中选择"运行模块"时运行正常,但在尝试创建分发时收到以下语法错误:

File "/usr/local/lib/python3.2/dist-packages/simpletriple.py", line 9
    def add(self, (sub, pred, obj)):
                  ^
SyntaxError: invalid syntax

任何人都可以帮助指出语法有什么问题吗？这是完整的代码:

import csv

class SimpleGraph:
    def __init__(self):
        self._spo = {}
        self._pos = {}
        self._osp = {}

    def add(self, (sub, pred, obj)):
        """
        Adds a triple to the graph.
        """
        self._addToIndex(self._spo, sub, pred, obj)
        self._addToIndex(self._pos, pred, obj, sub)
        self._addToIndex(self._osp, obj, sub, pred)

    def _addToIndex(self, index, a, b, c):
        """
        Adds a triple to a specified index.
        """
        if a not in index: index[a] = {b:set([c])}
        else: …