Python homework

atotal=0
average_Age=0
wtotal=0
average_W=0
age_list=[]
W_list=[]
with open('Data.csv', 'r') as Data_file:
    Data_file.readline()
    data =  Data_file.readline()

    while data.startswith('#'):
        data =  Data_file.split(',')

    age_list.append(int(data.split(',')[2]))
    W_list.append(int(data.split(',')[3]))
    atotal += int(data.split(',')[2])
    wtotal += int(data.split(',')[3])
    for line in Data_file:
        age_list.append(int(line.split(',')[2]))
        W_list.append(int(line.split(',')[3]))
        atotal += int(line.split(',')[2])
        wtotal += int(line.split(',')[3])

    average_Age = atotal/100
    average_W = wtotal/100
    print(average_Age)
    print(average_W)
    print(max(age_list))
    print(min(age_list))
    print(max(W_list))
    print(min(W_list))