python - Jupyter Notebook - 非常奇怪的错误

Question

我现在有点吃惊，我开始质疑我的技能。

我有以下程序：

def readdata(mr_data):

        mr = pd.read_csv(mr_data, sep = ",")
        mrarray = mr.values
        mranswers = {}
        for j in mrarray:
            #print(j) # until here it is correct and the values are different
            if j[0] == 'Subject':
                continue
            if j[0] not in mranswers:
                mranswers[j[0]] = {}

            mranswers[j[0]][j[14]] = j[2]    

        print(mranswers) # here it is the same suddenly, for both datasets

这绝对没有任何意义。当我用两个不同的文件调用函数时，最后的值（对于 mranswers）是相同的。但是当我打印 j 它们实际上是不同的，这怎么会发生，我能做些什么来避免这种情况？

标签： pythondebuggingjupyter-notebook