[Python] How to use pattern matching with objects?

I have the following python code that converts an object into a view-like mapping.

from collections.abc import Mapping

class ObjView(Mapping):
def __init__(self, obj):
self.obj = obj

def __contains__(self, key):
return key in dir(self.obj)
#return hasattr(self.obj, key) # Better, see the answers.

def __getitem__(self, key):
return getattr(self.obj, key)

def __len__(self):
return len(dir(self.obj))

def __iter__(self):
return iter(dir(self.obj))


The use-case I have in mind is pattern-matching class elements:

class Bird():
...
def type(self):
match ObjView(self):
case {'quacks': True}:
return 'Duck'
case {'wings': [w1, w2, w3], 'flies': False, 'colors': ['black', 'white']}:
return 'Three-winged penguin'
...


The good thing is that an AttributeError is raised if the key is not an attribute, instead of the KeyError that gets caught in dict pattern-matching. I know the example is a bit silly, but in my situation a lot of the attributes are tuples of length 0 to 3, and I want to pattern-match them.

Question. Can I achieve this type of pattern-matching behaviour using builtins instead of creating a custom ObjView class?

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