[Zak]

Code

import csv

stores = []
total = 0

with open('report.csv') as csvDataFile:
    csvReader = csv.reader(csvDataFile)

    for row in csvReader:
        if csvReader.line_num == 1:
             continue    # skip first row
             if row[8] == 'D'
                    stores.append(row[3])

stores = set(stores)

for store in stores:
    print(store)

Getting a syntax error
if row[8] == 'D'
^
SyntaxError: invalid syntax

Can anyone help?

[minimalist]

You're missing a colon in the line above the line of interest

[F.A.S.T]

add : after that line.