from sys import argv, exit
import csv
import re
if len(argv) < 3:
    print("Usage: python dna.py data.csv sequence.txt")

with open(argv[1],"r") as csvfile, open(argv[2],"r") as file: # arguments switched as suggested
    count = 0
    contents = file.read()
    csvcontents = csv.reader(csvfile)


    header = next(csvcontents)
    longestlist = []
    for item in header[1:]:
        beg = 0
        end = len(item)
        seqrun = 0
        longest = 0
        while beg + end <= len(contents):
            seqrun = 0
            while contents[beg: beg + end] == item:
                seqrun += 1
                beg += end
            if seqrun > longest:
                longest = seqrun
            beg += 1
        longestlist.append(str(longest))
    for line in csvcontents:
        Match = False
        if line[1:] == longestlist:
            Match = True
            print(line[0])
        if Match == False:
            print("No match")