A few notes:

• Apparently the teachers thought it would be a good idea to do age and date of birth for me. It seems all I have to do is integrate everything.

from datetime import date

def calculate_age(born):
    today = date.today()
    return today.year - born.year - ((today.month, today.day) < (born.month, born.day))

dob = date(2004, 12, 31)
age = calculate_age(dob)
print(age)

18

from werkzeug.security import generate_password_hash, check_password_hash
from datetime import date
import json

class User:    

    def __init__(self, name, uid, password, dob):
        self._name = name    # variables with self prefix become part of the object, 
        self._uid = uid
        self.set_password(password)
        self._dob = dob
    
    @property
    def name(self):
        return self._name
    
    # a setter function, allows name to be updated after initial object creation
    @name.setter
    def name(self, name):
        self._name = name
    
    # a getter method, extracts email from object
    @property
    def uid(self):
        return self._uid
    
    # a setter function, allows name to be updated after initial object creation
    @uid.setter
    def uid(self, uid):
        self._uid = uid
        
    # check if uid parameter matches user id in object, return boolean
    def is_uid(self, uid):
        return self._uid == uid
    
    # dob property is returned as string, to avoid unfriendly outcomes
    @property
    def dob(self):
        dob_string = self._dob.strftime('%m-%d-%Y')
        return dob_string
    
    # dob should be have verification for type date
    @dob.setter
    def dob(self, dob):
        self._dob = dob
        
    # age is calculated and returned each time it is accessed
    @property
    def age(self):
        today = date.today()
        return today.year - self._dob.year - ((today.month, today.day) < (self._dob.month, self._dob.day))
    
    # Getter + Setter for classOf, is largely a test. Based off previous codes.
    @property
    def classOf(self):
        print(self._dob.year + 18)
        return self._dob.year + 18

    #@classOf.setter
    #def classOf(self, classOf):
        #self._classOf = classOf


    # dictionary is customized, removing password for security purposes
    @property
    def dictionary(self):
        dict = {
            "name" : self.name,
            "uid" : self.uid,
            "dob" : self.dob,
            "age" : self.age,
            "classOf" : self.classOf
        }
        return dict
    
    # update password, this is conventional setter
    def set_password(self, password):
        """Create a hashed password."""
        self._password = generate_password_hash(password, method='sha256')

    # check password parameter versus stored/encrypted password
    def is_password(self, password):
        """Check against hashed password."""
        result = check_password_hash(self._password, password)
        return result
    
    # output content using json dumps, this is ready for API response
    def __str__(self):
        return json.dumps(self.dictionary)
    
    # output command to recreate the object, uses attribute directly
    def __repr__(self):
        return f'User(name={self._name}, uid={self._uid}, password={self._password},dob={self._dob})'
    

if __name__ == "__main__":
    u1 = User(name='Thomas Edison', uid='toby', password='123toby', dob=date(1847, 2, 11))
    print("JSON ready string:\n", u1, "\n") 
    print("Raw Variables of object:\n", vars(u1), "\n") 
    print("Raw Attributes and Methods of object:\n", dir(u1), "\n")
    print("Representation to Re-Create the object:\n", repr(u1), "\n") 

JSON ready string:
 1865
{"name": "Thomas Edison", "uid": "toby", "dob": "02-11-1847", "age": 175, "classOf": 1865} 

Raw Variables of object:
 {'_name': 'Thomas Edison', '_uid': 'toby', '_password': 'sha256$PPLDLb13bFSgSwAF$ea169c4ff72ec8c4a71b8bd09afeb11e929873237a015861bcda740433c0e2dc', '_dob': datetime.date(1847, 2, 11)} 

Raw Attributes and Methods of object:
 ['__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__', '_dob', '_name', '_password', '_uid', 'age', 'classOf', 'dictionary', 'dob', 'is_password', 'is_uid', 'name', 'set_password', 'uid'] 

Representation to Re-Create the object:
 User(name=Thomas Edison, uid=toby, password=sha256$PPLDLb13bFSgSwAF$ea169c4ff72ec8c4a71b8bd09afeb11e929873237a015861bcda740433c0e2dc,dob=1847-02-11)