我有一个接收节目指南的代码。
class ProgramList(UseSlaveMixin, TvmiddlewareApiView):
@method_decorator(auth_required)
def get(self, request, params):
print params.tariffs
channel = self.channel
maintenances = self.get_maintances()
timestamp_from, timestamp_to = self.get_filters()
epg = self.get_epg(channel.epg_channel_id, timestamp_from, timestamp_to)
utc_date = datetime.datetime.utcnow()
utc_timestamp = int((utc_date - datetime.datetime(1970, 1, 1)).total_seconds())
max_archive_duration_days = channel.max_archive_duration(params)
archive_start_time = (utc_timestamp - (max_archive_duration_days * 3600 * 24))
has_npvr_service = False
items = {'error': 0, 'programs': []}
我试图获得结果并收到：
archive_start_time = (utc_timestamp - (max_archive_duration_days * 3600 * 24))
但是我收到了这个错误：
TypeError: unsupported operand type(s) for *: 'NoneType' and 'int'