json OrderedDict vs json sort_keys

gistfile1.txt

>>> import json
>>> from collections import OrderedDict
>>> d = json.load(file('cards.json'), object_pairs_hook=OrderedDict)
>>> 'count' in d[333]
False
>>> d[333]['count'] = 10
>>> print(json.dumps(d[333],indent=4))
{
    "cardset": "empires", 
    "cost": "5", 
    "description": "+1 Card\n +1 Action\n______________________\nWhile this is in play, when you gain a Victory card, +1<VP>", 
    "extra": "This can trigger multiple times in a turn, for cards gained different ways. For example you could play Groundskeeper, then play Engineer gaining an Estate and taking 1<VP>, then in your Buy phase buy a Duchy taking another +1<VP>. Multiple Groundskeepers are cumulative. If you Crown a Groundskeeper, there is still just one Groundskeeper in play, so you only get +1<VP> per Victory card gained.", 
    "name": "Groundskeeper", 
    "potcost": 0, 
    "types": [
        "Action"
    ], 
    "count": 10
}
>>> print(json.dumps(d[333],indent=4, sort_keys=True))
{
    "cardset": "empires", 
    "cost": "5", 
    "count": 10, 
    "description": "+1 Card\n +1 Action\n______________________\nWhile this is in play, when you gain a Victory card, +1<VP>", 
    "extra": "This can trigger multiple times in a turn, for cards gained different ways. For example you could play Groundskeeper, then play Engineer gaining an Estate and taking 1<VP>, then in your Buy phase buy a Duchy taking another +1<VP>. Multiple Groundskeepers are cumulative. If you Crown a Groundskeeper, there is still just one Groundskeeper in play, so you only get +1<VP> per Victory card gained.", 
    "name": "Groundskeeper", 
    "potcost": 0, 
    "types": [
        "Action"
    ]
}