The poster wants to create objects dynamically. Can be created with exec

a = {"object1": {"attr1": "dawdad", "attr2": "dwagfreg"}, "object2": {"attr1": "45324523", "attr2": "45634"}} for obj_name in a: exec ('class %s(object):pass' % (obj_name)) for attr in a[obj_name]: exec ('%s.%s="%s"' % (obj_name, attr, a[obj_name][attr])) print(object1.attr1)

output dawdad

You can also use type to create

class targetobject(object): def __init__(self, attr1, attr2): self.attr1 = attr1 def func1(self): pass if __name__ == '__main__': a = {"object1": {"attr1": "dawdad", "attr2": "dwagfreg"}, "object2": {"attr1": "45324523", "attr2": "45634"}} for obj_name in a: obj = type(str(obj_name), (targetobject,), a[obj_name]) print(obj) print(obj.attr1)

When creating a class in Python, it is not necessary to provide all members (that is to say, all Python objects are not fixed)

eg.

class A: pass a.b = 1 # 可以通过 a.__dict__['c'] = 2 # 使用__dict__获取数据成员 print(a.b) # 1 print(a.c) # 2

So just read Json and add the corresponding data members in Json to any object

It sounds like the poster wants this kind of structure:

# coding: utf-8 from collections import namedtuple obj = {"object1":{"attr1":"dawdad","attr2":"dwagfreg"}, "object2":{"attr1":"45324523","attr2":"45634"}} obj_insts = [] for obj_name in obj: obj_attr = obj[obj_name] attrs = obj_attr.keys() attr_values = obj_attr.values() Obj = namedtuple(obj_name, attrs) obj_insts.append(Obj(*attr_values)) print(obj_insts) print(ibj_insts[0].attr1) [object1(attr2='dwagfreg', attr1='dawdad'), object2(attr2='45634', attr1='45324523')] dawdad

If it is a configuration file, it is recommended to use toml (https://github.com/toml-lang/...
Install python toml and you can use it.

Actually, I think you want to turn thejsondata in the file into an operable object, just like adictionary... Let’s see if thejsonlibrary meets the requirements:

cat 1.txt: {"object1":{"attr1":"dawdad","attr2":"dwagfreg"},"object2":"attr1":"45324523","attr2":"45634"}} # python交互shell >>> import json >>> a = json.load(open('1.txt')) >>> a {u'object1': {u'attr2': u'dwagfreg', u'attr1': u'dawdad'}, u'object2': {u'attr2': u'45634', u'attr1': u'45324523'}} >>> a['object1'] {u'attr2': u'dwagfreg', u'attr1': u'dawdad'}