如何在嵌套字典中 select 元素並遞歸刪除它們

Question

我已經生成了一個嵌套字典作為 JSON ，其中包含一個概念，然后在從網站或不同的 JSON （稱為“ALTERNATIVE”）抓取的句子中引用該概念，並具有關聯的超類（請參閱超鏈接和下面的實際最小值可行的例子）：

"Glide": {"superclasses": {"Entity": [{"source": "ALTERNATIVE"}]}}, "Yacht": {"superclasses": {"Boat": [{"reference": "Originally, yachts were sailing-boats, but now there are also motor yachts.", "source": "https://simple.wikipedia.org/wiki/Yacht"}, {"reference": "A yacht is a type of boat which is mainly used for recreation.", "source": "https://simple.wikipedia.org/wiki/Yacht"}], "Vessel": [{"reference": "In sailboat racing, a yacht is any sailing vessel taking part in a race.", "source": "https://simple.wikipedia.org/wiki/Yacht"}]}}, "Yam": {"superclasses": {"Vegetable": [{"reference": "A yam is a root vegetable.", "source": "https://simple.wikipedia.org/wiki/Yam"}, {"reference": "Yam is a vegetable that can be cooked in many ways.", "source": "https://simple.wikipedia.org/wiki/Yam"}], "Name": [{"reference": "Yam is the common name for some species in the genus Dioscorea.  ", "source": "https://simple.wikipedia.org/wiki/Yam"}]}},

我想為嵌套字典中的鍵（例如“Yacht”）做的是查看它的“超類”（例如在本例中為“Boat”和“Vessel”）並查看它們是否是鍵我的嵌套字典。

目前，我已將嵌套字典轉換為“（鍵，超類）”形式的元組列表，該列表按照每個鍵有多少超類（按降序排列）進行排序，以使事情變得更容易。

    import json
    from nltk.corpus import wordnet as wn
   
    
    ## importing the nested dictionary
    tax = json.load(open("data/nested_dict.json"))
    
    ## Converting our nested dictionary into a list of tuples
    tax_list = [(key, value) for key, value in tax.items()]
    
    ## Sorting out list with tuples in descending order of how many superclasses they have
    tax_list.sort(key=lambda x: len(x[1]["superclasses"].keys()), reverse = True)

謝謝，

標記

Answer 1

# Get all Keys in Master Dictionary and Convert to a LIST
allKeys = tax.keys()
allkeys = list(allkeys)  # Convert to a 'list' data structure so you can check it in one line of code (see below)

# I assume you want the user to specify the key in question
myKey = input("Please input key: ")

# Get the Superclass Dictionary Associated with that Specific Key
superClassDictionary = tax[myKey]

# Iterate through the Keys in the superClassDictionary
for superclass in superClassDictionary.keys():
  if superclass in allKeys:
     print("Superclass {} of key {} is also a key in the master dictionary".format(superclass, myKey))