Python JSON parse duplicate records

Question

In my JSON file I have sequence of same-named records

\"ability_upgrades\":{
    \"ability\":5155,
    \"time\":1226
},
\"ability_upgrades\":{
    \"ability\":51         


        

Answer 1

The documentation says a parameter called object_pairs_hook in json.loads can be used for handling duplicated records:

>>> json.loads(s, object_pairs_hook=(lambda x:  x))
[(u'ability_upgrades', [(u'ability', 5155), (u'time', 1226)]), (u'ability_upgrades', [(u'ability', 5155), (u'time', 1426)]), (u'ability_upgrades', [(u'ability', 5155), (u'time', 1497)]), (u'ability_upgrades', [(u'ability', 5157), (u'time', 1543)])]

How that function is defined is totally depending on what you want it to be. In the example above, since that hook gets as parameters a list of pairs, the identity function simply gives the list back.

E.g., if you define:

def collectAbilityUpgrades(s):
    d = {}
    for k, v in s:
        if k not in d:
            d[k] = []
        d[k].append(v)
    return d

Then:

>>> json.loads(s, object_pairs_hook=collectAbilityUpgrades)
{u'ability_upgrades': [{u'ability': [5155], u'time': [1226]}, {u'ability': [5155], u'time': [1426]}, {u'ability': [5155], u'time': [1497]}, {u'ability': [5157], u'time': [1543]}]}

Which probably is similar to what you want.