how to get all dates of week based on week number in python

Question

I want all the dates of the present week based on weeknumber.

I can get week number like

import datetime
weeknum=datetime.datetime.now().isocalendar()[1]

result is 20.

wanted all dates of week 20. the final output should be

dates=['2019-05-12','2019-05-13','2019-05-14','2019-05-15','2019-05-16','2019-05-17','2019-05-18']

please help me.

Answer 1

You can do it with time and datetime as well as this answer suggest but change it to your requirements:

WEEK  = 20 - 2 # as it starts with 0 and you want week to start from sunday
startdate = time.asctime(time.strptime('2019 %d 0' % WEEK, '%Y %W %w')) 
startdate = datetime.datetime.strptime(startdate, '%a %b %d %H:%M:%S %Y') 
dates = [startdate.strftime('%Y-%m-%d')] 
for i in range(1, 7): 
    day = startdate + datetime.timedelta(days=i)
    dates.append(day.strftime('%Y-%m-%d')) 

Output as following:

dates = ['2019-05-12',
         '2019-05-13',
         '2019-05-14',
         '2019-05-15',
         '2019-05-16',
         '2019-05-17',
         '2019-05-18']

Answer 2

Use timedelta and a list comprehension.

import datetime
theday = datetime.date.today()
weekday = theday.isoweekday()
# The start of the week
start = theday - datetime.timedelta(days=weekday)
# build a simple range
dates = [start + datetime.timedelta(days=d) for d in range(7)]

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To get output in strings

dates = [str(d) for d in dates]