ARCHIVED TRAINING / microsoft/Qcodes

microsoft__qcodes-8039

This is a preserved training example. Membership in the current training wave has not been verified.

Problem statement

Acccessing a faulty property of an instrument throws obscure error.
### Acccessing a faulty property of an instrument raises obscure error.
If an instrument has a `property` which raises an exception when gotten, the resulting error trace obscures the source of the error.

### Steps to reproduce
Take the following subclass of an instrument:
```python
In [1]: import qcodes

In [2]: class Foo(qcodes.Instrument):
   ...:    @property
   ...:    def foo(self):
   ...:        return self.bar
```
Accessing the `foo` property raises the following error, which has no traceback or reference whatsoever to what actually causes the error, which is the missing `bar` attribute:
```python
In [3]: foo = Foo('foo')
In [4]: foo.foo
Traceback (most recent call last):

  Cell In[4], line 1
    foo.foo

  File ~\Documents\Qcodes\src\qcodes\utils\attribute_helpers.py:69 in __getattr__
    raise AttributeError(

AttributeError: 'Foo' object and its delegates have no attribute 'foo'
```
This behavior makes these sorts of errors extremely cumbersome to debug if you're not aware of it. Instead, there should be a traceback to an `AttributeError` when getting `self.bar` in this example.

Branch: **main** @ **42c74833d227a85ee45d7812e1ac0f66b8d948b0**

Training membership

opd_e4b_pure_v6a opd_e4b_pure_v6b

Task issues extracted from preserved verified_rft_messages training examples. This is not a verified current RL wave manifest.

Task and snapshot provenance

Snapshot captured 2026-11-12T17:06:59.476467+00:00 · Autoresearch-Arena/gemma-4-developer-agent

{
  "datasets": [
    "opd_e4b_pure_v6a",
    "opd_e4b_pure_v6b"
  ],
  "examples": 4,
  "instance_id": "microsoft__qcodes-8039",
  "problem_statement": "Acccessing a faulty property of an instrument throws obscure error.\n### Acccessing a faulty property of an instrument raises obscure error.\r\nIf an instrument has a `property` which raises an exception when gotten, the resulting error trace obscures the source of the error.\r\n\r\n### Steps to reproduce\r\nTake the following subclass of an instrument:\r\n```python\r\nIn [1]: import qcodes\r\n\r\nIn [2]: class Foo(qcodes.Instrument):\r\n   ...:    @property\r\n   ...:    def foo(self):\r\n   ...:        return self.bar\r\n```\r\nAccessing the `foo` property raises the following error, which has no traceback or reference whatsoever to what actually causes the error, which is the missing `bar` attribute:\r\n```python\r\nIn [3]: foo = Foo('foo')\r\nIn [4]: foo.foo\r\nTraceback (most recent call last):\r\n\r\n  Cell In[4], line 1\r\n    foo.foo\r\n\r\n  File ~\\Documents\\Qcodes\\src\\qcodes\\utils\\attribute_helpers.py:69 in __getattr__\r\n    raise AttributeError(\r\n\r\nAttributeError: 'Foo' object and its delegates have no attribute 'foo'\r\n```\r\nThis behavior makes these sorts of errors extremely cumbersome to debug if you're not aware of it. Instead, there should be a traceback to an `AttributeError` when getting `self.bar` in this example.\r\n\r\nBranch: **main** @ **42c74833d227a85ee45d7812e1ac0f66b8d948b0**",
  "repo": "microsoft/Qcodes",
  "source": "v2/experiments/train_data/opd_e4b_pure_v6a/verified_rft_messages.jsonl",
  "source_sha256": "f045b7ca5b3883a1e2eaee81e1c02a4a1b53dd7b7b36e98bacb2ba5823a15148"
}

{
  "captured_at": "2026-11-12T17:06:59.476467+00:00",
  "membership": "archived training",
  "membership_evidence": "Task issues extracted from preserved verified_rft_messages training examples. This is not a verified current RL wave manifest.",
  "name": "Preserved post-training task archive",
  "source": "Autoresearch-Arena/gemma-4-developer-agent",
  "source_revision": "016496de222aaafca0d4ee4c18efc63ba616f76e",
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