from noc.inv.models import Interface, InterfaceProfile
from noc.sa.models import ManagedObject

pi = InterfaceProfile.objects.get(name="seg_gb_ports").id
pd = InterfaceProfile.objects.get(name="default").id
print pi
print pd

for mo in ManagedObject.objects.filter(profile_name="Opticin.OS"):
    print str(mo.id)

    ifaces = Interface.objects.filter(managed_object=mo.id, name="Port 25", profile=pd)
#    print ifaces
    for i in ifaces:
        print "Changing profile for %s" % i
        i["profile"] = pi
        i.save()