开始日期是每月的第一天，结束日期是下个月的第一天 Pandas

Question

I'm looking to iterate through a date range where start_date and end_date increment on a monthly basis with each iteration starting at the beginning of the month.

First iteration example:

start_date = '2020-01-01'
end_date = '2020-02-01'

The second iteration of the loop should look like:

start_date = '2020-02-01'
end_date = '2020-03-01'

what I've tried:

for x in range(20):
    start_date = pd.Timestamp('2020-01-01') + pd.offsets.MonthBegin(n=1)
    end_date = start_date + pd.offsets.MonthBegin(n=1)
    

The issue I am having is that on the next iteration I am not incrementing to the next month. it stays on the current month. Is there a way to increment to the next month?

Answer 1

start_date = pd.to_datetime('2020-02-01')
end_date = pd.to_datetime('2020-03-01')
for x in range(20):
     
    print(start_date.strftime('%Y-%m-%d'))
    print(end_date.strftime('%Y-%m-%d'))
    # do the work here...


    # then increment the dates for the next iteration
    start_date = start_date + pd.offsets.MonthBegin(n=1)
    end_date = start_date + pd.offsets.MonthBegin(n=1)

seems to do the job