Comparing @Property access versus direct access

property_vs_property.txt

In [1]: class Foo: 
   ...:     def __init__(self, a, b): 
   ...:         self._a = a 
   ...:         self.b = b 
   ...:     @property 
   ...:     def a(self): 
   ...:         return self._a 
   ...:                                                    

In [2]: Foo.a                                              
Out[2]: <property at 0x7f5aec3e28b0>

In [3]: Foo.b                                              
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-3-6cbe443c09a1> in <module>
----> 1 Foo.b

AttributeError: type object 'Foo' has no attribute 'b'

In [4]: f = Foo(1, 1)                                      

In [5]: f.a                                                
Out[5]: 1

In [6]: f.b                                                
Out[6]: 1

In [7]: %timeit f.a                                        
109 ns ± 1.31 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)

In [8]: %timeit f.b                                        
47.4 ns ± 3.12 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)