Generate Holiday Calendars for Different Countries in Python

import calendar
from datetime import date, timedelta

def generate_holiday_calendar(country_code, year=2025):
    holidays = []
    
    if country_code == "US":
        # New Year's Day
        holidays.append(date(year, 1, 1))
        # Independence Day
        holidays.append(date(year, 7, 4))
        # Thanksgiving (4th Thursday of November)
        cal = calendar.monthcalendar(year, 11)
        thanksgiving = cal[3][3] if cal[0][3] == 0 else cal[4][3]
        holidays.append(date(year, 11, thanksgiving))
        # Christmas Day
        holidays.append(date(year, 12, 25))
    elif country_code == "UK":
        # New Year's Day
        holidays.append(date(year, 1, 1))
        # Good Friday (approximate: day before Easter Sunday, simplified as last Friday in March)
        cal = calendar.monthcalendar(year, 3)
        good_friday = max([week[4] for week in cal if week[4] != 0])
        holidays.append(date(year, 3, good_friday))
        # Christmas Day
        holidays.append(date(year, 12, 25))
        # Boxing Day
        holidays.append(date(year, 12, 26))
    else:
        print(f"No predefined holidays for country code: {country_code}")
        return []

    return sorted(holidays)

if __name__ == "__main__":
    print("US Holidays 2025:", generate_holiday_calendar("US", 2025))
    print("UK Holidays 2025:", generate_holiday_calendar("UK", 2025))