Check whether string is in CSV

Question

I want to search a CSV file and print either True or False, depending on whether or not I found the string. However, I\'m running into the problem wher

Answer 1

when you look inside a csv file using the csv module, it will return each row as a list of columns. So if you want to lookup your string, you should modify your code as such:

import csv

username = input()

with open('Users.csv', 'rt') as f:
     reader = csv.reader(f, delimiter=',') # good point by @paco
     for row in reader:
          for field in row:
              if field == username:
                  print "is in file"

but as it is a csv file, you might expect the username to be at a given column:

with open('Users.csv', 'rt') as f:
     reader = csv.reader(f, delimiter=',')
     for row in reader:
          if username == row[2]: # if the username shall be on column 3 (-> index 2)
              print "is in file"