如何定义一个Python字典，其中多个子字典具有相同的值？

Question

我正在尝试创建一个Python dict其成员本身就是dict ，其中两个是相同的：

servers = {
  "test": {
    "auth_token": "some-auth-token",
    "client_id": "some-client-id",
    "client_secret": "some-client-secret",
    "scope": "some-scope"
  },
  "live": {
    "auth_token": "auth-token-for-live",
    "client_id": "client-id-for-live",
    "client_secret": "client-secret-for-live",
    "scope": "scope-for-live"
  },
  "demo": servers["test"] # this doesn't work, but this is what I need
}

我的demo服务器定义与test服务器定义相同，但是我不想重复它-有什么方法可以做到这一点？

Answer 1

x = {
    "auth_token": "some-auth-token",
    "client_id": "some-client-id",
    "client_secret": "some-client-secret",
    "scope": "some-scope"
}

servers = {
  "test": x,

  "live": {
    "auth_token": "auth-token-for-live",
    "client_id": "client-id-for-live",
    "client_secret": "client-secret-for-live",
    "scope": "scope-for-live"
  },

  "demo": x

}

例如https://repl.it/GO6Y/0

Answer 2

servers = {
  "test": {
    "auth_token": "some-auth-token",
    "client_id": "some-client-id",
    "client_secret": "some-client-secret",
    "scope": "some-scope"
  },
  "live": {
    "auth_token": "auth-token-for-live",
    "client_id": "client-id-for-live",
    "client_secret": "client-secret-for-live",
    "scope": "scope-for-live"
  }}

servers['demo'] = servers['test']