sayan01

# first arg = database csv
# second arg = sequence
import csv
from sys import argv, exit
# if user does not adhere to usage, quit
if len(argv) != 3:
    print("Usage: python dna.py data.csv sequence.txt")
    exit(1)
# open the passed files and close them after work done
with open(argv[1]) as dataf, open(argv[2]) as seqf: