编辑：如果您有python
3.7+，只需使用数据类
保留签名的装饰器解决方案：
import decoratorimport inspectimport sys@decorator.decoratordef simple_init(func, self, *args, **kws): """ @simple_init def __init__(self,a,b,...,z) dosomething() behaves like def __init__(self,a,b,...,z) self.a = a self.b = b ... self.z = z dosomething() """ #init_argumentnames_without_self = ['a','b',...,'z'] if sys.version_info.major == 2: init_argumentnames_without_self = inspect.getargspec(func).args[1:] else: init_argumentnames_without_self = tuple(inspect.signature(func).parameters.keys())[1:] positional_values = args keyword_values_in_correct_order = tuple(kws[key] for key in init_argumentnames_without_self if key in kws) attribute_values = positional_values + keyword_values_in_correct_order for attribute_name,attribute_value in zip(init_argumentnames_without_self,attribute_values): setattr(self,attribute_name,attribute_value) # call the original __init__ func(self, *args, **kws)class Test(): @simple_init def __init__(self,a,b,c,d=4): print(self.a,self.b,self.c,self.d)#prints 1 3 2 4t = Test(1,c=2,b=3)#keeps signature#prints ['self', 'a', 'b', 'c', 'd']if sys.version_info.major == 2: print(inspect.getargspec(Test.__init__).args)else: print(inspect.signature(Test.__init__))
