rrule

Method 1: Iteration using timedelta

rrule is a package present in dateutil library and this package consists of a method also rrule which takes dtstart, until and specific time period as parameters which are start date, end date, and time period based on iteration respectively. Specific time periods are WEEKLY, MONTHLY, YEARLY, etc.

Note: Use MONTHLY when you want to iterate over months between dates.

Syntax:

rrule(rrule.MONTHLY, dtstart=start_date, until=end_date)

Example:

Iterate over months between dates using rrule.

Python3

# import necessary packages
from datetime import datetime
from dateutil import rrule
 
# dates
start_date = datetime(2021, 1, 1)
end_date = datetime(2022, 1, 1)
 
for dt in rrule.rrule(rrule.MONTHLY, dtstart=start_date, until=end_date):
    print(dt)

Output

2021-01-01 00:00:00
2021-02-01 00:00:00
2021-03-01 00:00:00
2021-04-01 00:00:00
2021-05-01 00:00:00
2021-06-01 00:00:00
2021-07-01 00:00:00
2021-08-01 00:00:00
2021-09-01 00:00:00
2021-10-01 00:00:00
2021-11-01 00:00:00
2021-12-01 00:00:00
2022-01-01 00:00:00

Example:

Iterate over years in between dates using rrule.

Python3

# import necessary packages
from datetime import datetime
from dateutil import rrule
 
# dates
start_date = datetime(2021, 1, 1)
end_date = datetime(2022, 1, 1)
 
for dt in rrule.rrule(rrule.YEARLY, dtstart=start_date, until=end_date):
    print(dt)

Output

2021-01-01 00:00:00
2022-01-01 00:00:00

Time complexity : O(years), where years is the number of years between start_date and end_date.

Space complexity : O(years), where years is the number of years between start_date and end_date

How to Iterate over months between two dates in Python?

In this article, we will discuss how to iterate over months between two dates using Python.

We can iterate over months between two dates using timedelta and rrule methods.

Tags:

#Python-datetime #Python #python

Method 1: Iteration using timedelta

rrule

Python3

Python3

How to Iterate over months between two dates in Python?

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