import datetime
print(datetime.date.today()-datetime.timedelta(days=datetime.date.today().weekday()))
获取本周星期二
import datetime
print(datetime.date.today()-datetime.timedelta(days=datetime.date.today().weekday()-1))
获取本周星期三
import datetime
print(datetime.date.today()-datetime.timedelta(days=datetime.date.today().weekday()-2))
后面以此类推
俗人昭昭，我独昏昏。俗人察察，我独闷闷。
