from sys import argv, exit
import csv
import re
if len(argv) < 3:
    print("missing command line argument")

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:]:# is there no reason to do this?
    #for item in header:
        beg = 0 # beginning index
        end = len(item) # item length
        seqrun = 0
        longest = 0
        #longestlist = [] # longestlist is being cleared out each time... change this
        #index = 0
        while beg + end <= len(contents):
            seqrun = 0
            while contents[beg: beg + end] == item:
                seqrun += 1
                beg += end
                if seqrun > longest:
                    longest = seqrun
                #longestlist.append(longest)
            beg += 1
            #longestlist.append(longest)
        print(item + " repeats " + str(longest) + " times")
        longestlist.append(longest)
    print("longestlist prints:")
    print(header)# to remind me which string is repeating
    print(longestlist)
    for line in csvcontents:
        if line == longestlist:
            print("possible match is: ")
            print(line[0])