python - 拆分文件中的列表

Question

所以我有一个多行文本文件每行都有姓名、年级和出生年份或学生，用分号分隔

如何创建一个函数，以便对每行中的所有第二项求和，然后对它们求平均值？

例如，

mary; 0; 1995
jay; 50; 1995

classAverage = 25

对此真的很困惑。

到目前为止，这是我的代码，它没有给我错误，但是当我打印时，它显示 <function classAverage at 0x0000000004C1ADD8>

from kiva.constants import LINES

def process(name):
    f = open(name)
    answer = []
    for line in f:
        answer.append(line.strip())
    return answer
def classAverage(data):
    data = process(filename)
    data.split()
    adding = []
    for line in data:
        adding = adding + data[1]
    return adding/(line)


if __name__ == '__main__':
    filename = "grades.txt"
    data = process(filename)
    for each in data:
        print each
    print classAverage(data)
    #print "Average grade is ", classAverage(data)
    year1 = 1995
    year2 = 1997
    print "Number born from ",year1,"to",year2,"is",
    #print howManyInRange(data, year1, year2)

Answer 1

def ave(x):
    return sum(x) / len(x)
with open(name, newline='') as csvfile:
    print(ave([float(row[1]) for row in csv.reader(csvfile, dilimeter=';')]))