Advent | Python Fiddle

from itertools import permutations
from collections import defaultdict

def parse(filename):
    combinations = defaultdict(dict)
    with open(filename, 'r') as f:
        for line in f.readlines():
            line = line.split()
            guest1 = line[0]
            guest2 = line[10][:-1]
            op = line[2]
            hap = line[3]
            if op == 'gain':
                combinations[guest1][guest2] = hap
            else:
                combinations[guest1][guest2] = int(hap) * -1

return combinations

def prepare_permutations():
    guests = parse('day13.txt').keys()
    possible_seats = permutations(guests)
    return possible_seats

# print(list(prepare_permutations()))

def prepare_couples():
    s = []
    people = parse('day13.txt')
    print(people)
    for perm in prepare_permutations():
        print(perm)

count = 0
        for i in range(len(perm)):
        #     print(people[perm[i]])
            # print(people[perm[i][perm[i-1]]])

print(perm[i], perm[i-1], people[perm[i]][perm[i-1]])
            count += int(people[perm[i]][perm[i-1]])

s.append(count)
    # print(s)

return max(s)

print(prepare_couples())

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