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问题描述

我有一个脚本可以构建多个字典并将它们合并为单个字典以返回调用实体。要求是将每个字典附加到前一个字典的末尾。当我在我的 PC(Windows 10、python 3.x)中构建它时,它运行良好,如下所示。

{
  "Array Name": "SU73ARWVSPF01",
  "storageSystemId": "22186",
  "storageSystemName": "POD5_SU73ARWVSPF01",
  "accessible": true,
  "model": "VSP G1500",
  "svpIpAddress": "10.185.35.37",
  "firmwareVersion": "80-06-78-00/00",
  "lastRefreshedTime": "2020-12-21 14:45:31",
  "Pool List": {
     "Pool-1": {
      "storagePoolId": 11,
      "label": "DATA",
      "capacityInBytes": 590323982008320,
      "usedCapacityInBytes": 422152148877312,
      "availableCapacityInBytes": 168171833131008,
      "usedSubscription": 83
    },
      "Pool-2": {
      "storagePoolId": 12,
      "label": "LOGS",
      "capacityInBytes": 28142827732992,
      "usedCapacityInBytes": 21991601995776,
      "availableCapacityInBytes": 6151225737216,
      "usedSubscription": 78
    }
  },
  "SNMP Manager List": {
    "SNMP-1": {
      "name": "Test",
      "ipAddress": "1.1.1.1"
    },
    "SNMP-2": {
      "name": "Test1",
      "ipAddress": "2.2.2.2"
    }
   },
  "Hardware Alert List": {
    "diskAlerts": false,
    "powerSupplyAlerts": false,
    "batteryAlerts": false,
    "fanAlerts": false,
    "portAlerts": false,
    "cacheAlerts": false,
    "memoryAlerts": false,
    "processorAlerts": false
  }
}

但是,在将其移动到将运行实际程序的服务器(RHEL 7、python 2.7)之后,字典的顺序变得混乱,如下所示。

{
  "accessible": true,
  "storageSystemName": "POD5_SU73ARWVSPF01",
  "Hardware Alert List": {
    "cacheAlerts": false,
    "powerSupplyAlerts": false,
    "portAlerts": false,
    "processorAlerts": false,
    "batteryAlerts": false,
    "diskAlerts": false,
    "fanAlerts": false,
    "memoryAlerts": false
  },
  "SNMP Manager List": {
    "SNMP-1": {
      "ipAddress": "1.1.1.1",
      "name": "Test"
    },
    "SNMP-2": {
      "ipAddress": "2.2.2.2",
      "name": "Test1"
    }
  },
  "svpIpAddress": "10.185.35.37",
  "storageSystemId": "22186",
  "Array Name": "SU73ARWVSPF01",
  "lastRefreshedTime": "2020-12-21 21:45:31",
  "model": "VSP G1500",
  "Pool List": {
    "Pool-2": {
      "usedSubscription": 78,
      "label": "LOGS",
      "usedCapacityInBytes": 21991601995776,
      "storagePoolId": 12,
      "availableCapacityInBytes": 6151225737216,
      "capacityInBytes": 28142827732992
    },
    "Pool-1": {
      "usedSubscription": 83,
      "label": "DATA",
      "usedCapacityInBytes": 422152148877312,
      "storagePoolId": 11,
      "availableCapacityInBytes": 168171833131008,
      "capacityInBytes": 590323982008320
    }
  },
  "firmwareVersion": "80-06-78-00/00"
}

第一个输出是我想要和编程的方式,通过使用

OUTPUT={}
OUTPUT.update(new Dict1), OUTPUT.update(new Dict2).... etc

有没有办法避免字典被插入另一个字典的中间而不是它的末尾

标签: pythonpython-2.7dictionary

解决方案


自 Python 3.6 以来,维护其插入顺序的 Python 字典才成为一项功能(尽管当时它们只是一个实现细节;替代 Python 实现不必遵守这一点)。从 Python 3.7 开始,这已成为语言规范。

因为您在服务器上使用 Python 2.7,所以不能保证使用默认dict类的字典顺序。您可以使用collections.OrderedDict该类来确保记住插入顺序。


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