如何将 Python 字符串转换为列表字典？

str_content = '''[  {    "id": "failure",    "description": null,    "event": [],    "rowid": 1  },  {    "id": "virtual",    "description": null,    "event": [],    "rowid": 2  },  {    "id": "cleaning",    "description": null,    "event": [],    "rowid": 3  }]'''

expected_result_converted = json.loads(expected_result)