0
這是我目前在MongoDB中使用的文檔。通過mongo的python字典進行遞歸迭代
{
"name":"food",
"core":{
"group":{
"carbs":{
"abbreviation": "Cs"
"USA":{
"breakfast":"potatoes",
"dinner":"pasta"
},
"europe":{
"breakfast":"something",
"dinner":"something big"
}
},
"abbreviation": "Ds"
"dessert":{
"USA":{
"breakfast":"potatoes and eggs",
"dinner":"pasta"
},
"europe":{
"breakfast":"something small",
"dinner":"hello"
}
},
"abbreviation": "Vs"
"veggies":{
"USA":{
"breakfast":"broccoli",
"dinner":"salad"
},
"europe":{
"breakfast":"cheese",
"dinner":"asparagus"
}
}
}
}
}
我用下面幾行代碼從mongo中提取數據。
data = collection.foodie.find({"name":"food"}, {"name":False, '_id':False})
def recursee(d):
for k, v in d.items():
if isinstance(v,dict):
print recursee(d)
else:
print "{0} : {1}".format(k,v)
然而,當我運行recursee功能,它無法打印組:碳水化合物,組:甜點,或基團:蔬菜。相反,我得到下面的輸出。
breakfast : something big
dinner : something
None
abbreviation : Cs
breakfast : potatoes
dinner : pasta
None
None
breakfast : something small
dinner : hello
None
abbreviation : Ds
breakfast : potatoes and eggs
dinner : pasta
None
None
breakfast : cheese
dinner : asparagus
None
abbreviation : Vs
breakfast : broccoli
dinner : salad
我跳過了一些我的遞歸繞過打印組和相應的值嗎?