Models and python object difference

simple_django_model.py

from django.db import models

class User(models.Model):
    email = models.EmailField()
    
obj = User(email='kavirajkanagaraj@gmail.com')

print(User.email)
# output: AttributeError: type object 'User' has no attribute 'email'
print(obj.email)
# output: kavirajkanagaraj@gmail.com

simple_python_instance.py

class EmailField(object):
  def __init__(self, email=''):
    self.email = email

class User(object):
  email = EmailField('kavirajkanagaraj@gmail.com')
  
obj = User()

print(User.email)
# output: <__main__.EmailField object at 0x7f59e81e8550>
print(obj.email)
# output: <__main__.EmailField object at 0x7f59e81e8550>