AOC2020D4.py

import pprint

def get_puzzle_input(a_file_name: str) -> list[dict[str, str]]:
    passport = dict()
    passports: list[dict[str, str]] = []
    passport_chunks: list[str] = []

    def get_passport(a_passport_chunks: list[str]) -> dict[str, str]:
        passport_line = ' '.join(a_passport_chunks)
        return {x[0] : x[1] for x in (t.split(':') for t in passport_line.split()) }

    with open(a_file_name) as INFILE:
        passport_lines = [line.strip() for line in INFILE]

    for passport_line in passport_lines:
        if passport_line == '':
            passports.append(get_passport(passport_chunks))
            passport_chunks = []
        else:
            passport_chunks.append(passport_line)

    if passport_chunks:
        passports.append(get_passport(passport_chunks))

    return passports

def is_valid_passport(a_passport: dict[str, str]) -> bool:
    is_valid: bool = False

    if (len(a_passport) >= 7
        and all(k in a_passport for k in ['byr', 'iyr', 'eyr', 'hgt', 'hcl', 'ecl', 'pid'])):

            is_valid = True

    return is_valid

passports = get_puzzle_input('aoc_2020/aoc_2020_day_04.txt')
# pprint.pprint(passports, width=132)

print(f"p1={sum([is_valid_passport(passport) for passport in passports])}")