assisging multiple values to a element in dictionary

[saif.shakeel at gmail.com]

Hi,
       I have a dictionary which is something like this:
id_lookup={
16:'subfunction',
26:'dataId',
34:'parameterId',
39:'subfunction',
44:'dataPackageId',
45:'parameterId',
54:'subfunction',
59:'dataId',
165:'subfunction',
169:'subfunction',
170:'dataPackageId',
174:'controlParameterId'
}
     How do i assign multiple values to the key here.Like i want the
key 170 to take either the name 'dataPackageID' or the name
'LocalId'.I use this in my code,and hence if either comes it should
work .
Can someone help me.
                  Thanks