import json # some JSON:
x = '{"first": {"Id": "1","Zone": "South", "Product": "toy"}, "second": {"Id": "2","Zone": "North", "Product": "softtoy"}, "third": {"Id": "1", "Zone": "East","Product": "bat"}}'
# parse x:
y = json.loads(x)
for i in y:
if y[i]['Id'] == "1":
if y[i]['Zone'] == "East":
print (y[i]['Product'])