advent_10_part1.py

scores = {
  ')': 3,
  ']': 57,
  '}': 1197,
  '>': 25137
}

expected = {
  '(': ')',
  '[': ']',
  '{': '}',
  '<': '>'
}

def score(line):
  stack = []
  for char in line:
    if char in expected.keys():
      stack.append(char)
    else:
      if char == expected[stack[-1]]:
        stack.pop()
      else:
        return scores[char]
  return 0

if __name__ == '__main__':
  with open('input.txt') as data:
    total_score = 0
    for line in data:
      line = line.strip()
      total_score += score(line)
    print(total_score)