python 嵌套字典比较值，取值

#取值
import types
allGuests = {'Alice': {'apples': 5, 'pretzels': {'12':{'beijing':456}}},
'Bob': {'ham sandwiches': 3, 'apple': 2},
'Carol': {'cups': 3, 'apple pies': 1}}
def dictget(dict1,obj,default=None):
for k,v in dict1.items():
if k == obj:
print(v)
else:
if type(v) is dict:
re=dictget(v,obj)
if re is not default:
print(re)
dictget(allGuests,'beijing')

def bijiaodict(dict1,dict2):
for k,v in dict1.items():
for k2,v2 in dict2.items():
if k==k2 and v==v2:
print('dict1=dict2')
else:
print('dict1!=dict2')
dict1={'2':'6'}
dict2={2:{1:{1:8}}}
bijiaodict(dict1,dict2)