[issue34387] Deletion of attributes in dataclass is buggy

[Brett Cannon]

Brett Cannon <brett at python.org> added the comment:

I agree with Eric that without concrete details I suspect everything is working as expected. E.g.

```python
class Foo:
   attr = -13

ins = Foo()
ins.attr = 42
print(ins.attr)
del ins.attr
print(ins.attr)
```

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nosy: +brett.cannon
title: Deletion of attributes in dataclass is buggy! -> Deletion of attributes in dataclass is buggy

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue34387>
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