按参数对字典进行分组和求和

def group_and_sum_by_param(dictionary, param):
    result = {}
    for key, value in dictionary.items():
        if param in value:
            group_key = value[param]
            if group_key in result:
                result[group_key] += value
            else:
                result[group_key] = value
    return result

# 待处理的字典
data = {
    "apple": {"color": "red", "price": 1.2},
    "banana": {"color": "yellow", "price": 0.5},
    "orange": {"color": "orange", "price": 0.8},
    "grape": {"color": "purple", "price": 1.0}
}

# 按颜色对字典进行分组和求和
result = group_and_sum_by_param(data, "color")

print(result)

{
    "red": {"color": "red", "price": 1.2},
    "yellow": {"color": "yellow", "price": 0.5},
    "orange": {"color": "orange", "price": 0.8},
    "purple": {"color": "purple", "price": 1.0}
}