Python hasattr vs getattr

Question

I have been reading lately some tweets and the python documentation about hasattr and it says:

hasattr(object, name)

The

Answer 1

Seems that hasattr has a problem with swallowing exceptions (at least in Python 2.7), so probably is better to stay away from it until it's fixed.

Take, for instance, the following code:

>>> class Foo(object):
...     @property
...     def my_attr(self):
...         raise ValueError('nope, nope, nope')
...
>>> bar = Foo()
>>> bar.my_attr
Traceback (most recent call last):
  File "", line 1, in 
  File "", line 4, in my_attr
ValueError: nope, nope, nope
>>> hasattr(Foo, 'my_attr')
True
>>> hasattr(bar, 'my_attr')
False
>>> getattr(bar, 'my_attr', None)
Traceback (most recent call last):
  File "", line 1, in 
  File "", line 4, in my_attr
ValueError: nope, nope, nope
>>>