检查模块:

inspect模块提供了几个有用的函数来帮助获取 有关活动对象的信息，如模块、类、方法、 函数、回溯、帧对象和代码对象。

使用getmembers()可以看到类的所有属性及其值。要排除私有或受保护的属性，请使用. startwith('_')。要排除方法或函数，请使用inspect.ismethod()或inspect.isfunction()。

import inspect


class NewClass(object):
    def __init__(self, number):
        self.multi = int(number) * 2
        self.str = str(number)

    def func_1(self):
        pass


inst = NewClass(2)

for i in inspect.getmembers(inst):
    # Ignores anything starting with underscore 
    # (that is, private and protected attributes)
    if not i[0].startswith('_'):
        # Ignores methods
        if not inspect.ismethod(i[1]):
            print(i)

注意，ismethod()用于i的第二个元素，因为第一个元素只是一个字符串(它的名字)。

跑题:类名使用CamelCase。

获取对象的属性

class new_class():
    def __init__(self, number):
    self.multi = int(number) * 2
    self.str = str(number)

new_object = new_class(2)                
print(dir(new_object))                   #total list attributes of new_object
attr_value = new_object.__dict__         
print(attr_value)                        #Dictionary of attribute and value for new_class                   

for attr in attr_value:                  #attributes on  new_class
    print(attr)

输出

['__class__', '__delattr__', '__dict__', '__dir__', '__doc__','__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'multi', 'str']

{'multi': 4, 'str': '2'}

multi
str

请参阅已按顺序执行的python shell脚本，在这里您将获得以逗号分隔的字符串格式的类属性。

>>> class new_class():
...     def __init__(self, number):
...         self.multi = int(number)*2
...         self.str = str(number)
... 
>>> a = new_class(4)
>>> ",".join(a.__dict__.keys())
'str,multi'<br/>

我使用的是python 3.4

>>> class new_class():
...   def __init__(self, number):
...     self.multi = int(number) * 2
...     self.str = str(number)
... 
>>> a = new_class(2)
>>> a.__dict__
{'multi': 4, 'str': '2'}
>>> a.__dict__.keys()
dict_keys(['multi', 'str'])

您可能还会发现pprint有帮助。

你要这个干什么?如果不知道你的确切意图，可能很难得到最好的答案。

It is almost always better to do this manually if you want to display an instance of your class in a specific way. This will include exactly what you want and not include what you don't want, and the order will be predictable. If you are looking for a way to display the content of a class, manually format the attributes you care about and provide this as the __str__ or __repr__ method for your class. If you want to learn about what methods and such exist for an object to understand how it works, use help. help(a) will show you a formatted output about the object's class based on its docstrings. dir exists for programatically getting all the attributes of an object. (Accessing __dict__ does something I would group as the same but that I wouldn't use myself.) However, this may not include things you want and it may include things you do not want. It is unreliable and people think they want it a lot more often than they do. On a somewhat orthogonal note, there is very little support for Python 3 at the current time. If you are interested in writing real software you are going to want third-party stuff like numpy, lxml, Twisted, PIL, or any number of web frameworks that do not yet support Python 3 and do not have plans to any time too soon. The differences between 2.6 and the 3.x branch are small, but the difference in library support is huge.

做这件事的方法不止一种:

#! /usr/bin/env python3
#
# This demonstrates how to pick the attiributes of an object

class C(object) :

  def __init__ (self, name="q" ):
    self.q = name
    self.m = "y?"

c = C()

print ( dir(c) )

当运行时，这段代码产生:

jeffs@jeff-desktop:~/skyset$ python3 attributes.py 
['__class__', '__delattr__', '__dict__', '__dir__', '__doc__',      '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'm', 'q']

jeffs@jeff-desktop:~/skyset$