python str,date以及datetime之间的相互转化

date转datetime

date_time = datetime.datetime.combine(date, datetime.time(0, 0, 0))

datetime转date

date = datetime.date(datetime)

str转datetime

datetime = datetime.datetime.strptime(str, '%Y-%m-%d %H:%M:%S')

datetime转str

str = str(datetime)

str转date

date = datetime.datetime.strptime(str, '%Y-%m-%d').date()

date转str

str = str(date)