my trashy dna pset6

import csv
import sys

def main():

    # Ensure correct usage
    if len(sys.argv) != 3:
        sys.exit("You should enter 2 arguments after the program's name")
        exit(1)
    dict_list = []
    # TODO: Read teams into memory from file
    with open(sys.argv[1], "r") as file:
        reader = csv.DictReader(file)
        for name in reader:
            name["AGATC"] = int(name["AGATC"])
            name["TTTTTTCT"] = int(name["TTTTTTCT"])
            name["AATG"] = int(name["AATG"])
            name["TCTAG"] = int(name["TCTAG"])
            name["GATA"] = int(name["GATA"])
            name["TATC"] = int(name["TATC"])
            name["GAAA"] = int(name["GAAA"])
            name["TCTG"] = int(name["TCTG"])
            dict_list.append(name)

    with open(sys.argv[2], "r") as text:
        sequence = text.read()

    c_1 = sequence.count("AGATC")
    c_2 = sequence.count("TTTTTTCT")
    c_3 = sequence.count("AATG")
    c_4 = sequence.count("TCTAG")
    c_5 = sequence.count("GATA")
    c_6 = sequence.count("TATC")
    c_7 = sequence.count("GAAA")
    c_8 = sequence.count("TCTG")
    max_counts = [c_1, c_2, c_3, c_4, c_5, c_6, c_7, c_8]

    # Compare against data
    for i in range(len(dict_list)):
        matches = 0
        for j in range(1, len(reader.fieldnames)):
            if max_counts[j - 1] == int(dict_list[i][reader.fieldnames[j]]):
                matches += 1
            if matches == (len(reader.fieldnames) - 1):
                print(dict_list[i]['name'])
                exit(0)
    print("No match")

if __name__ == "__main__":
    main()