python - Django initial data serialization error -

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i trying provide initial data model in django. when try run python manage.py loaddata <fixture path> following error: 

django.core.serializers.base.deserializationerror: problem installing  fixture '/home/location/fixtures/initial_data.json':  expecting property name enclosed in double quotes: line 7 column 10 (char 119)

my fixtures or initial data this: 

[ {     "model": "location.zipcode",     "pk": 1,     "fields": {       "zipcode": 79936,      } }, {     "model": "location.zipcode",     "pk": 2,     "fields": {         "zipcode": 90011,     } } ]

i have zipcode integerfield in zipcode model. appreciated.

trailing commas not valid in json remove them.
give:

[ {     "model": "location.zipcode",     "pk": 1,     "fields": {       "zipcode": 79936      } }, {     "model": "location.zipcode",     "pk": 2,     "fields": {         "zipcode": 90011     } } ]

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