如何获取日期范围内的所有日期并按这些日期分组？

from datetime import datetime, timedelta

start_date = datetime(2022, 1, 1)
end_date = datetime(2022, 1, 31)

date_range = []
current_date = start_date

while current_date <= end_date:
    date_range.append(current_date)
    current_date += timedelta(days=1)

date_range.sort()

grouped_dates = {}

for date in date_range:
    year = date.year
    month = date.month
    day = date.day

    # 以年份为分组
    if year not in grouped_dates:
        grouped_dates[year] = []
    grouped_dates[year].append(date)

    # 以月份为分组
    if month not in grouped_dates:
        grouped_dates[month] = []
    grouped_dates[month].append(date)

    # 以星期为分组
    weekday = date.strftime('%A')
    if weekday not in grouped_dates:
        grouped_dates[weekday] = []
    grouped_dates[weekday].append(date)

print(grouped_dates)