Message411889
It does not happen on `3.11` (main):
```
Python 3.11.0a4+ (heads/main-dirty:ef3ef6fa43, Jan 20 2022, 20:48:25) [Clang 11.0.0 (clang-1100.0.33.16)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> class A:
... __slots__ = ('x',)
...
>>> A.__slots__ += ('y',)
>>> A.__slots__
('x', 'y')
>>> a = A()
>>> a.__slots__
('x', 'y')
>>> a.__slots__ += ('z',)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'A' object attribute '__slots__' is read-only
>>> a.__slots__
('x', 'y')
```
It also does not happen on `3.9`:
```
Python 3.9.9 (main, Dec 21 2021, 11:35:28)
[Clang 11.0.0 (clang-1100.0.33.16)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> class A:
... __slots__ = ('x',)
...
>>> a = A()
>>> a.__slots__ += ('y',)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'A' object attribute '__slots__' is read-only
>>> a.__slots__
('x',)
``` |
|
Date |
User |
Action |
Args |
2022-01-27 15:26:29 | sobolevn | set | recipients:
+ sobolevn, IanLee1521 |
2022-01-27 15:26:29 | sobolevn | set | messageid: <1643297189.0.0.126410360252.issue46550@roundup.psfhosted.org> |
2022-01-27 15:26:28 | sobolevn | link | issue46550 messages |
2022-01-27 15:26:28 | sobolevn | create | |
|