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fix: Warn when calling nonexistent properties #1370

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speller26 merged 2 commits into from
Oct 21, 2026
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fix: Warn when calling nonexistent properties #1370

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fix: Warn when calling nonexistent properties
speller26 Oct 21, 2026
dd0e7e4
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speller26 Oct 21, 2026
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6 changes: 6 additions & 0 deletions src/braket/aws/aws_device.py
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Original file line number Diff line number Diff line change
Expand Up @@ -497,6 +497,12 @@ def properties(self) -> DeviceCapabilities:

.. _amazon-braket-schemas-python: https://github.com/aws/amazon-braket-schemas-python
"""
if not self._properties:
warnings.warn(
f"No device capabilities found;"
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" please make sure you are using the latest version of amazon-braket-schemas.",
stacklevel=1,
)
return self._properties

@property
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3 changes: 2 additions & 1 deletion test/unit_tests/braket/aws/test_aws_device.py
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Expand Up @@ -693,7 +693,8 @@ def test_get_device_invalid_capabilities(arn):
mock_session.region = RIGETTI_REGION
device = AwsDevice(arn, mock_session)
assert device is not None
assert device.properties is None
with pytest.warns(UserWarning):
assert device.properties is None


MOCK_PULSE_MODEL_QPU_PULSE_CAPABILITIES_JSON_1 = {
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