Sumar un mes con python


>>> from datetime import date
>>> current_date=date.today()
>>> carry, new_month=divmod(current_date.month-1+1, 12)
>>> new_month+=1
>>> current_date=current_date.replace(year=current_date.year+carry, month=new_month)
>>> print date.today()
2011-05-21
>>> print current_date
2011-06-21
>>>