Dictionary in a Dictionary, how to remove and aggregate all the data-CodePudding

I have the below dictionary and want to put all the fruit into a new dictionary ie the output would be

{"Apples":1, "Banana":1, "Pear":1, "Orange":2}.

I keep stumbling at the point where Andy has a dictionary in a dictionary which I cannot figure out how to deal with.

{
    "Martin":{"Apples":1},
    "Andy":{"Dad":{"Banana":1}},
    "Lucy":{"Pear":1,"Orange":2}
}

Any advice please.

CodePudding user response：

You can use python's built in isinstance to check what is the type of your value, and recursive calls to process the value as the flat data:

data = {
    "Martin":{"Apples":1},
    "Andy":{"Dad":{"Banana":1}},
    "Lucy":{"Pear":1,"Orange":2}
}

fruits = {}
def add_fruits(data):
    for key, value in data.items():
        if isinstance(value, dict):
            # it's a dict go one more level
            add_fruits(value)
        else: # it's a fruit
            fruits[key]  = value 
add_fruits(data)
print(fruits)

Which gives the following:

{'Apples': 1, 'Banana': 1, 'Pear': 1, 'Orange': 2}