Python错误：“ IndexError：列表索引超出范围”

Question

I am trying to make a list out of data from an excel file in python, but I receive this whenever I run my code

row[1] = int(row[1])
IndexError: list index out of range
>>> 

This is the code I have that sorts it (by minimum, maximum, and average)

f = open("Class 2.csv", "r")
csvread = csv.reader(f)
nlist = []
for row in csvread:
    filter(lambda x: 3 > 0, row)
    row[0] = int(row[0])
    row[1] = int(row[1])
    row[2] = int(row[2])
    row[3] = int(row[3])
    minimum = min(row[1:4])
    row.append(minimum)
    maximum = max(row[1:4])
    row.append(maximum)
    average = round(sum(row[1:4])/3)
    row.append(average)
    nlist.append(row[0:4])
print(nlist)

Row[0] in my excel file is a name as well, so I also get an error that tells me that int(row[0]) cannot work because I is not an integer. I don't know how to change it so that I don't get this error.

Answer 1

Iteration row has no second element. Check it before sending:

If all values in list are numbers, use map for str to int values:

int_values = map(int, str_list)

or

int_values = map(int, str_list[0:4])

But this will not solve your problem, because in the list of values.