def warnpy3k(message, category=None, stacklevel=1):
    if sys.py3kwarning:
        if category is None:
            category = DeprecationWarning
        warn(message, category, stacklevel+1)
Single product, mutliple reports with 0 quantity.
dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/warnings.py/warnpy3k--crossover with--dataset/ETHPy150Open dimagi/commcare-hq/custom/ewsghana/tests/test_notifications.py/StockoutReportNotificationTestCase.test_multi_report_stockout