Python错误:";索引器:列表索引超出范围“;
我尝试使用从CSV文件检索的数据按平均值对分数进行排序,但当我运行代码时,它会抛出错误:Python错误:";索引器:列表索引超出范围“;,python,list,Python,List,我尝试使用从CSV文件检索的数据按平均值对分数进行排序,但当我运行代码时,它会抛出错误: row[1] = int(row[1]) IndexError: list index out of range 我的代码如下所示: print("Would you like to see previous results?") print("Press 1 to see previous results for your class. Press 2 to close the program"
row[1] = int(row[1])
IndexError: list index out of range
我的代码如下所示:
print("Would you like to see previous results?")
print("Press 1 to see previous results for your class. Press 2 to close the program")
answer = int(input())
if answer == 1:
print("How would you like data to be sorted?")
print("Press 1 for average")
print("Press 2 for highest to lowest")
print("Press 3 for alphabetically")
sort_num = int(input())
if sort_num == 1:
f = open("Class 2.csv")
csv_f = csv.reader(f)
newlist = []
for row in csv_f:
row[1] = int(row[1])
row[2] = int(row[2])
row[3] = int(row[3])
average = round(sum(row[1:3])/3)
row.append(average)
newlist.append(row[0:4])
print(newlist)
有人能解释一下我为什么会出现这个错误吗?在执行发布的操作之前,请尝试打印行的内容
f = open("Class 2.csv")
csv_f = csv.reader(f)
newlist = []
for row in csv_f:
print("row == {} // type(row) == {}".format(row, type(row)))
row[1] = int(row[1])
row[2] = int(row[2])
row[3] = int(row[3])
若行为void或仅包含元素,并且在最后一种情况下您必须访问元素0(代码为:行[0]),则会出现这种类型的错误
打印行的类型是为了验证行的类型(但是,我不认为该行的类型与“列表”不同)
希望这对您有所帮助:-)
行
为空或只有一项。就这些。你能展示一下你的“Class 2.csv”吗?现在我们只能说“没有行[1]
”。通过一个示例,我们可能可以帮助您解决错误。