>>> from datetime import datetime
>>> datetime.today().strftime('%A')
'Wednesday'
import datetime as dt
dt.datetime.strptime('2019-01-01', '%Y-%m-%d').isocalendar()[1]
import datetime
from dateutil.relativedelta import relativedelta
week = 25
year = 2021
date = datetime.date(year, 1, 1) + relativedelta(weeks=+week)
print(date)