def quarter(d):
"""
Return start/stop datetime for the quarter as defined by dt.
"""
from django_toolkit.datetime_util import quarter as datetime_quarter
first_date, last_date = datetime_quarter(datetime(d.year, d.month, d.day))
return first_date.date(), last_date.date()
def previous_quarter(d):
"""
Retrieve the previous quarter for dt
"""
from django_toolkit.datetime_util import quarter as datetime_quarter
return quarter( (datetime_quarter(datetime(d.year, d.month, d.day))[0] + timedelta(days=-1)).date() )