Re: [Python-ideas] Fix that broken callable builtin

17 Apr 2015


      Same as what would happen when you use the call operator on an object that
has an AttributeError raising property:
...
...
...
class D:
...  @property
...  def __add__(self):
...   raise AttributeError('Not so fast, pardner!')
...
...
D() + D()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 4, in __add__
AttributeError: Not so fast, pardner!
Thanks,
-- Ionel Cristian Mărieș, http://blog.ionelmc.ro

On Sat, Apr 18, 2015 at 12:44 AM, Ethan Furman <ethan@stoneleaf.us> wrote:
...
On 04/18, Ionel Cristian Mărieș wrote:
...
__add__ as a property/descriptor seems to work fine, eg:
...
...
...
class C:
...  @property
...  def __add__(self):
...   return lambda other: [self, other]
...
...
C() + C()
[<__main__.C object at 0x0000000003652AC8>, <__main__.C object at
0x0000000003652CC0>]
Am I missing something?
What happens when your __add__ raises an AttributeError?
--
~Ethan~
_______________________________________________
Python-ideas mailing list
Python-ideas@python.org
https://mail.python.org/mailman/listinfo/python-ideas
Code of Conduct: http://python.org/psf/codeofconduct/