class MyObject():
    
    def __init__(self):
          self.a = 1
         self.b = 2
          self.c = 3
      
    def __iter__(self):
        yield 'a', self.a
        yield 'b', self.b
        yield 'c', self.c

dict(MyObject())

>>>
{
  'a': 1,
  'b': 2,
  'c': 3
}