Python get number of the week by month

Question

Any one could help me please, How to get number of week by month in Python?

from datetime import datetime, date, timedelta

Input:

date1 = "2015-07-09"
date2 = "2016-08-20"

Output:

2015-07 : 4
2015-08 : 5
2015-08 : 4
....
2016-08 : 5

How to count number of the week by monthly from date1 to date2?

I want to get number of the week by monthly from date to date. — Mr Theavuth, Jul 09 '15 at 01:49
I think that what he is trying to ask is how many weeks are there between date 1 and date 2. Is it @TeahbuthNhel? — tomasyany, Jul 09 '15 at 01:56
@tomasyany: That makes sense, but what does "by monthly" mean? — ycsun, Jul 09 '15 at 01:57
http://stackoverflow.com/questions/2600775/how-to-get-week-number-in-python — dting, Jul 09 '15 at 02:01
Ok. I think your output is wrong because you put `2015-08` twice with differents values. Then, how can a month in a year have 5 weeks? (If I correctly understood what you are trying to say). That would mean 35 days.. — tomasyany, Jul 09 '15 at 02:10

grovesNL · Accepted Answer · 2015-07-09T03:06:51.710

1

If you wanted to measure the number of full weeks between two dates, you could accomplish this with datetime.strptime and timedelta like so:

from datetime import datetime, date, timedelta
dateformat = "%Y-%m-%d"
date1 = datetime.strptime("2015-07-09", dateformat)
date2 = datetime.strptime("2016-08-20", dateformat)
weeks = int((date2-date1).days/7)
print weeks

This outputs 58. The divide by 7 causes the number of weeks to be returned. The number of whole weeks is used (rather than partial) because of int which returns only the integer portion. If you wanted to get the number of partial weeks, you could divide by 7.0 instead of 7, and ensure that you remove the int piece.

edited Jul 09 '15 at 03:06

answered Jul 09 '15 at 02:18

grovesNL

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FYI, integer division in Python 3.x returns floats. – Anand S Kumar Jul 09 '15 at 02:58
@AnandSKumar: Thanks, edited to support both. I've worked in 2.x for so long that I often forget 3.x exists... – grovesNL Jul 09 '15 at 03:07

score 0 · Answer 2 · answered Jul 09 '15 at 02:08

0

Try this:

date1 = "2015-07-09"
date2 = "2016-08-20"
d1 = datetime.datetime.strptime(date1, '%Y-%m-%d').date()
d2 = datetime.datetime.strptime(date2, '%Y-%m-%d').date()  
diff = d2 -d1
weeks, days = divmod(diff.days, 7)

answered Jul 09 '15 at 02:08

GAVD

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Python get number of the week by month

2 Answers2