how to convert logical operators query string to dictionary in Python 3

问题

i have query string and i need to convert json object, as shown below

((blue AND green) OR (brown AND green) OR green) AND NOT red

{
  "filter": {
"operator": "and",
"filters": [{
    "operator": "or",
    "filters": [{
        "operator": "and",
        "filters": [{
            "means": "contains",
            "value": "blue"
          },
          {
            "means": "contains",
            "value": "green"
          }
        ]
      },
      {
        "operator": "and",
        "filters": [{
            "means": "contains",
            "value": "brown"
          },
          {
            "means": "contains",
            "value": "green"
          }
        ]
      },
      {
        "means": "contains",
        "value": "green"
      }
    ]
  },
  {
    "means": "not contains",
    "value": "red"
  }
]
  }
}

can you help me? how to convert query to same dict, i need good solutions for mappings

来源：https://stackoverflow.com/questions/49500373/how-to-convert-logical-operators-query-string-to-dictionary-in-python-3