A Python program is designed to read weekly rainfall data from a text file, compute the total rainfall for each week, and then print the overall grand total.

Figure 1 shows the contents of the text file Rainfall.txt.

Figure 1: Rainfall.txt

12,15,8,14,21,10,20
22,18,25,30,15,20,20
35,40,25,30,20,15,15
42,38,50,25,25,20,20

Figure 2 shows the buggy Python code currently saved as Q05c.py.

Figure 2: Buggy Python Code (Q05c.py)

file = open("Rainfall.txt", "r")
grand_total = 0

for line in file:
    values = line.strip().split(",")
    week_total = 0
    for val in values:
        week_total = week_total + val
    print(week_total)
    grand_total = grand_total + week_total

print("Grand total: " + grand_total)
file.close()

Figure 3 shows the intended output of the program.

Figure 3: Intended output

100
150
180
220
Grand total: 650