How to succinctly list all attributes of classes and objects?

Question

I have started to create classes and objects in python, progress is slow but I am getting there. I wanted to ask the community whether it was possible to output all the attributes of a class/object.

I have created the following class:-

import inspect class Helloclass: def __init__(self): self.A = "" self.B = "" self.C = "" self.D = "" london = Helloclass() london.A = "Apples" london.D = 120 print(inspect.getmembers(london))

I have created an object called london from Helloclass (so london is an instance of Helloclass).
There are 4 x properties that i coded into the class these are A, B, C, and D.
I have assigned the string 'Apples' to the A attribute of the london object.
I have assigned the value 120 to the A attribute of the london object.
I wanted to print out all of the available properties of the london object or the Helloclass class.
I have used the module inspect, however this gives me a horrible output and looks like:-

 ('A', 'Apples'), ('B', ''), ('C', ''), ('D', 120), ('__class__', <class '__main__.Helloclass'>), ('__delattr__', <method-wrapper '__delattr__' of Helloclass object at 0x000001E6B704CD00>), ('__dict__', {'A': 'Apples', 'B': '', 'C': '', 'D': 120}), ('__dir__', <built-in method __dir__ of Helloclass object at 0x000001E6B704CD00>), ('__doc__', None), ('__eq__', <method-wrapper '__eq__' of Helloclass object at 0x000001E6B704CD00>), ('__format__', <built-in method __format__ of Helloclass object at 0x000001E6B704CD00>), ('__ge__', <method-wrapper '__ge__' of Helloclass object at 0x000001E6B704CD00>), ('__getattribute__', <method-wrapper '__getattribute__' of Helloclass object at 0x000001E6B704CD00>), ('__gt__', <method-wrapper '__gt__' of Helloclass object at 0x000001E6B704CD00>), ('__hash__', <method-wrapper '__hash__' of Helloclass object at 0x000001E6B704CD00>), ('__init__', <bound method Helloclass.__init__ of <__main__.Helloclass object at 0x000001E6B704CD00>>), ('__init_subclass__', <built-in method __init_subclass__ of type object at 0x000001E6B57CF350>), ('__le__', <method-wrapper '__le__' of Helloclass object at 0x000001E6B704CD00>), ('__lt__', <method-wrapper '__lt__' of Helloclass object at 0x000001E6B704CD00>), ('__module__', '__main__'), ('__ne__', <method-wrapper '__ne__' of Helloclass object at 0x000001E6B704CD00>), ('__new__', <built-in method __new__ of type object at 0x00007FFF9F7DCB50>), ('__reduce__', <built-in method __reduce__ of Helloclass object at 0x000001E6B704CD00>), ('__reduce_ex__', <built-in method __reduce_ex__ of Helloclass object at 0x000001E6B704CD00>), ('__repr__', <method-wrapper '__repr__' of Helloclass object at 0x000001E6B704CD00>), ('__setattr__', <method-wrapper '__setattr__' of Helloclass object at 0x000001E6B704CD00>), ('__sizeof__', <built-in method __sizeof__ of Helloclass object at 0x000001E6B704CD00>), ('__str__', <method-wrapper '__str__' of Helloclass object at 0x000001E6B704CD00>), ('__subclasshook__', <built-in method __subclasshook__ of type object at 0x000001E6B57CF350>), ('__weakref__', None)

Although this gives me what i want, there is so much extra stuff which I do not need or want to see.

I just want the output to be something like:-

london Object of Class Helloclass london.A = "Apples" london.B = "" london.C = "" london.D = 120

Is there any way of getting cleaner output?

Arundeep Chohan · Accepted Answer · 2020-08-27 00:30:03Z

You could simply do this to get both.

import inspect class Helloclass: def __init__(self): self.A = "" self.B = "" self.C = "" self.D = "" def __str__(self): return str(self.__class__) + '\n' + '\n'.join((str(item) + ' = ' + str(self.__dict__[item]) for item in sorted(self.__dict__))) london = Helloclass() london.A = "Apples" london.D = 120 print(london)

Should produce something close

<class '__main__.Helloclass'> A = Apples B = C = D = 120

You could also use self.class.name and change up the string however you want.

 def __str__(self): return 'Object of Class '+str(self.__class__.__name__ ) + '\n' + '\n'.join((str(item) + ' = ' + str(self.__dict__[item]) for item in sorted(self.__dict__)))

It should be closer.

Object of Class Helloclass A = Apples B = C = D = 120

Cory Kramer · Accepted Answer · 2020-08-26 23:38:57Z

You could use vars to get this kind of output

>>> vars(london) {'A': 'Apples', 'B': '', 'C': '', 'D': 120}

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