1>>> class new_class():
2...   def __init__(self, number):
3...     self.multi = int(number) * 2
4...     self.str = str(number)
5... 
6>>> a = new_class(2)
7>>> a.__dict__
8{'multi': 4, 'str': '2'}
9>>> a.__dict__.keys()
10dict_keys(['multi', 'str'])
11