def get_list_locations(request):
    account = Account.objects.get(user=request.user)
    street = request.GET.get('street', '')
    number_building = request.GET.get('num', '')
    sub_polyclinic = request.GET.get('bra', '')
    polyclinic = account.polyclinic.get()
    if sub_polyclinic == '':
        sub_polyclinic = Subdivision_Polyclinic.objects.get(polyclinic = account.polyclinic.get())
        sub_polyclinic = sub_polyclinic.branch
    location = Location.objects.select_related('subdivision_polyclinics', 'polyclinic')

    if street:
        locations = location.filter(street__icontains = street)
    if number_building:
        locations = location.filter(building__icontains = number_building)
    if sub_polyclinic:
        locations = location.filter(subdivision_polyclinics__branch=sub_polyclinic)
    if not locations:
        locations = location.filter(chek_building = False,subdivision_polyclinics__branch=sub_polyclinic, polyclinic__id = polyclinic.id)
    locations_json = []
    for i in locations:
        if(chek_write(i.polyclinic.id)):
            locations_json.append({'polyclinic': str(i.polyclinic.name),'building': str(i.building), 'branch': i.subdivision_polyclinics.name_sub,
                                    'street': str(i.street),'zone': str(i.zone), 'email': str(i.polyclinic.email),
                                    'contact': str(i.polyclinic.contact), 'recording': set_or_redirect(i)})
    return HttpResponse(json.dumps(locations_json), content_type='application/json')

====================== Твой код ==================================
def get_list_locations(request):
    account = Account.objects.get(user=request.user)
    street = request.GET.get('street', '')
    number_building = request.GET.get('num', '')
    sub_polyclinic = request.GET.get('bra', '')
    polyclinic = account.polyclinic.get()
    if sub_polyclinic == '':
        sub_polyclinic = Subdivision_Polyclinic.objects.get(polyclinic = account.polyclinic.get())
        sub_polyclinic = sub_polyclinic.branch
    location = Location.objects.select_related('subdivision_polyclinics', 'polyclinic')
    if len(number_building) == 0:
        locations = location.filter(
            street__icontains=street,
            subdivision_polyclinics__branch=sub_polyclinic,
            polyclinic__id = polyclinic.id)
    else:
        locations = location.filter(
            Q (street__icontains=street)
            & Q (building__icontains=number_building)
            & Q (subdivision_polyclinics__branch=sub_polyclinic)
            & Q (polyclinic__id = polyclinic.id))
        if not locations:
            locations = location.filter(
                street__icontains=street,
                chek_building = False,
                subdivision_polyclinics__branch=sub_polyclinic,
                polyclinic__id = polyclinic.id)

    locations_json = []
    for i in locations:
        if(chek_write(i.polyclinic.id)):
            locations_json.append({'polyclinic': str(i.polyclinic.name),'building': str(i.building), 'branch': i.subdivision_polyclinics.name_sub,
                                    'street': str(i.street),'zone': str(i.zone), 'email': str(i.polyclinic.email),
                                    'contact': str(i.polyclinic.contact), 'recording': set_or_redirect(i)})
    return HttpResponse(json.dumps(locations_json), content_type='application/json')