Python 中字典转对象演示

dict2obj.py

from types import SimpleNamespace
npc = {
 'name': {
	 'first': 'san',
	 'last': 'zhang'
 },
 'hp': 1000
}
npc
npc = SimpleNamespace(**npc)
npc.hp
npc.name
npc.name.first
from functools import singledispatch

@singledispatch
def wrap_namespace(ob):
    return ob
    
wrap_namespace(1)

@singledispatch
def mytype(obj):
    return obj
    
@mytype.register(list)
def handle_list(obj):
    print("i am list")
    return obj
    
mytype([1,2,3,4])
mytype("a")

def dict2obj
@singledispatch
def dict2obj(o):
    return o
    
@dict2obj.register(dict)
def handle_obj(obj):
    return SimpleNamespace(**{ k:dict2obj(v) for k,v in obj.items() })
    
@dict2obj.register(list)
def handle_list(lst):
    return [ dict2obj(i) for i in lst]
    
npc
dict2obj(npc)
zhangsan = {}
zhangsan = {'name': {'first': 'san', 'last': 'zhang'}, 'hp': 1000}
lisi = {'name': {'first': 'si', 'last': 'li'}, 'hp': 1000, 'friends': [zhangsan]}
lisi
zhangsan
lisi
obj_lisi = dict2obj(lisi)
obj_lisi.name
obj_lisi.name.first
obj_lisi.hp
obj_lisi.friends[0].name
obj_lisi.friends[0].name.first