连续最长日期

from datetime import datetime
def calculate_consecutive_dates(dates_str: str):
    max_consecutive_days = 0
    temp_flag = 0
    dates_list = dates_str.split(",")
    dates = [datetime.strptime(d, "%Y-%m-%d") for d in dates_list]
    print(dates)
    date_ints = [d.toordinal() for d in dates]
    print(date_ints)

    retlist = list()
    count = 1
    # Avoid Index Error
    for i in range(len(date_ints) - 1):
        # Check if the next number is consecutive
        if date_ints[i] + 1 == date_ints[i + 1]:
            count += 1
        else:
            print(count)
            # If it is not append the count and restart counting
            retlist.append(count)
            count = 1
    # In case we stop the loop earlier then we should append the last count
    retlist.append(count)
    retlist.sort(reverse=True)
    print(retlist)
    # return retlist[0]
days_str = '''2021-11-17,2021-11-19,2021-11-20,2021-11-21,2021-11-23,2021-11-24'''
#连续最长日期
calculate_consecutive_dates(days_str)