Question

这是我的代码：

with open('example.csv','r',encoding='utf8') as agr:

    agr_csv = csv.reader(agr, delimiter=',')
    for line in agr_csv:
        name = line[0]
        year = line[2:3]
        countryname[name].append(year)

但我总是得到这个错误：

Traceback (most recent call last):
File "quiz_4.py", line 72, in <module>
name = line[0]
IndexError: list index out of range

原因是什么？

Answer 1

如果有空行，您的代码将失败。然而，你可以简单地跳过它们：

with open('example.csv','r',encoding='utf8') as agr:
    agr_csv = csv.reader(agr, delimiter=',')
    for line in agr_csv:
        print("Line: >{}<".format(line)) # for debugging
        if(not line): # check if the line is empty
            continue  # skip
        name = line[0]
        year = line[2:3]
        countryname[name].append(year)

python csv读取行但索引超出范围

1 个答案: