How to I fix the error for the calculatingsales in Python?

#Using loop to calculate the total sales for the week.
def calculatingsales():
    file = open('sale.txt','r')
    theweek = []
    numbers = []
    index = 0
    total = 0
# striping new characters and added acculumator
    for line in file:
        line.rstrip('\n')
        list = line.split(',')
        theweek.append(list)
        theweek[index][1] = float(theweek[index][1])
        numbers.append(theweek[index][1])
        total += theweek[index][1]
        index+=1     
       
    #print(total)
    print(theweek)
    print(numbers)                   
    print("The day with the lowest sales: ",theweek[numbers.index(min[numbers][1])
return calculatingsales (results) 


#splitting items into two dimensional list
'''
Sunday = ',10839.33'
Monday = ',8921.47'
Tuesday = ',15932.34'
Wednesday = ',7319.21'
Thursday = '11093.82'
Friday = '2304.90'
Saturday = ',9023.83'


Sunday_list = Sunday.split(',')
Monday_list = Monday.split(',')
Tuesday_list = Tuesday.split(',')
Wednesday_list = Wednesday.split(',')
Thursday_list = Thursday.split(',')
Friday_list = Friday.split(',')
Saturday_list = Saturday.split(',')

two_dim_list = [Sunday_list,
                Monday_list,
                Tuesday_list,
                Wednesday_list,
                Thursday_list,
                Friday_list,
                Saturday_list]

index1 = 0 # two d list
while index1 < len(two_dim_list):
    print('Total sales: ', two_dim_list[index1][0])
    print('Week days: ', two_dim_list[index1][1])

    index += 1
# slicing list
print(two_dim_list[sale:index1])'''

Sunday,10839.33
Monday,8921.47
Tuesday,15932.34
Wednesday,7319.21
Thursday,11093.82
Friday,2304.90
Saturday,9023.83