gistfile1.txt

    # Python 2.7:
    from io import BytesIO
    def get_dumpdata_results(self):
        # https://stackoverflow.com/questions/16075789/how-to-use-call-command-with-dumpdata-command-to-save-json-to-file#16076115
        buf = BytesIO()
        management.call_command('dumpdata', stdout=buf)
        buf.seek(0)
        return json.loads(buf.read())
        
    # Python 3.6
    from io import StringIO
    def get_dumpdata_results(self):
        # https://stackoverflow.com/questions/16075789/how-to-use-call-command-with-dumpdata-command-to-save-json-to-file#16076115
        buf = StringIO()
        management.call_command('dumpdata', stdout=buf)
        buf.seek(0)
        return json.loads(buf.read())