def iter_last_days num today datetime now replace hour minute second m

def iter_last_days(num):
    today = datetime.now().replace(hour=0, minute=0, second=0, microsecond=0)
    start = today - timedelta(days=(num - 1))
    for x in xrange(num):
        end = start + timedelta(days=1)
        yield {
            'start': start,
            'end': end,
            'tag': start.strftime('%Y-%m-%d'), 
        }
        start = end


@login_required
def stats_page(request):
    data_reg = []
    data_search = []
    for day in iter_last_days(7):
        data_reg.append({
            'day': day['tag'],
            'value': User.objects.filter(date_joined__gte=day['start'],
                                         date_joined__lt=day['end']).count(),
        })
        data_search.append({
            'day': day['tag'],
            'value': SearchRequest.objects.filter(created__gte=day['start'],
                                                  created__lt=day['end']).count(),
        })

    context = {
        'data_reg': json.dumps(data_reg),
        'data_search': json.dumps(data_search),
    }
    return render(request, 'keydb/stats_page.html', context)