How to change part of the value string in Python Dictionary?

[sbabu]

recs = {1: ['Susan Smith', '[email protected]'],
            2: ['Cole Brown', '[email protected]'],
            3: ['Sue John', '[email protected]']}
for key in recs:
    recs[key] = [item.replace('.com', '.org') for item in recs[key]]

Thank U


Sir,
recs[key]= how the whole record is being stored? Here key means 1,2,3, but the value also being stored. Please explain how this key works.