List attributes of an object [duplicate]

Question

>>> 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'])

You may also find pprint helpful.

dir(instance)
# or (same value)
instance.__dir__()
# or
instance.__dict__

Then you can test what type is with type() or if is a method with callable().

All previous answers are correct, you have three options for what you are asking

1. dir()

2. vars()

3. __dict__

>>> dir(a)
['__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']
>>> vars(a)
{'multi': 4, 'str': '2'}
>>> a.__dict__
{'multi': 4, 'str': '2'}

vars(obj) returns the attributes of an object.

Inspect module:

The inspect module provides several useful functions to help get information about live objects such as modules, classes, methods, functions, tracebacks, frame objects, and code objects.

---

Using getmembers() you can see all attributes of your class, along with their value. To exclude private or protected attributes use .startswith('_'). To exclude methods or functions use inspect.ismethod() or 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


a = NewClass(2)

for i in inspect.getmembers(a):
    # 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)

Note that ismethod() is used on the second element of i since the first is simply a string (its name).

_{Offtopic: Use CamelCase for class names.}

>>> ', '.join(i for i in dir(a) if not i.startswith('__'))
'multi, str'

This of course will print any methods or attributes in the class definition. You can exclude "private" methods by changing i.startwith('__') to i.startwith('_')

You can use dir(your_object) to get the attributes and getattr(your_object, your_object_attr) to get the values

usage :

for att in dir(your_object):
    print (att, getattr(your_object,att))

This is particularly useful if your object have no __dict__. If that is not the case you can try var(your_object) also