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Add __delitem__ to InferenceData #2295

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merged 3 commits into from
Dec 14, 2023
Merged

Add __delitem__ to InferenceData #2295

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b9aae6e
Add __delitem__ to InferenceData
aadya940 Dec 3, 2023
86aeeef
Add tests for __delitem__ for InferenceData
aadya940 Dec 3, 2023
f2a3562
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OriolAbril Dec 14, 2023
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4 changes: 4 additions & 0 deletions arviz/data/inference_data.py
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Original file line number Diff line number Diff line change
Expand Up @@ -236,6 +236,10 @@ def __delattr__(self, group: str) -> None:
self._groups_warmup.remove(group)
object.__delattr__(self, group)

def __delitem__(self, key: str) -> None:
"""Delete an item from the InferenceData object using del idata[key]."""
self.__delattr__(key)

@property
def _groups_all(self) -> List[str]:
return self._groups + self._groups_warmup
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4 changes: 3 additions & 1 deletion arviz/tests/base_tests/test_data.py
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Expand Up @@ -496,7 +496,7 @@ def test_sel_chain_prior(self):
with pytest.raises(KeyError):
idata.sel(inplace=False, chain_prior=True, chain=[0, 1, 3])

@pytest.mark.parametrize("use", ("del", "delattr"))
@pytest.mark.parametrize("use", ("del", "delattr", "delitem"))
def test_del(self, use):
# create inference data object
data = np.random.normal(size=(4, 500, 8))
Expand All @@ -523,6 +523,8 @@ def test_del(self, use):
# Use del method
if use == "del":
del idata.sample_stats
elif use == "delitem":
del idata["sample_stats"]
else:
delattr(idata, "sample_stats")

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