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Add depends_on path to error output #248

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merged 6 commits into from
Nov 12, 2024
Merged

Add depends_on path to error output #248

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ec76a44
Add depends_on path to error output
ggoneiESS Nov 9, 2024
0b1a641
Apply automatic formatting
pre-commit-ci-lite[bot] Nov 11, 2024
f289624
add regex to test for any or no depends_on chain
ggoneiESS Nov 11, 2024
4bf1a4a
Merge branch 'main' into patch-1
ggoneiESS Nov 11, 2024
7741c1e
Update tests/nxtransformations_test.py
ggoneiESS Nov 12, 2024
a3bb2c2
Update tests/nxtransformations_test.py
ggoneiESS Nov 12, 2024
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3 changes: 2 additions & 1 deletion src/scippnexus/nxtransformations.py
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Original file line number Diff line number Diff line change
Expand Up @@ -280,7 +280,8 @@ def parse_depends_on_chain(
chain.transformations[transform.name] = transform[()]
except KeyError as e:
warnings.warn(
UserWarning(f'depends_on chain references missing node {e}'), stacklevel=2
UserWarning(f'depends_on chain {depends_on} references missing node {e}'),
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No sure what this adds? I think the depends_on was already in the warning message as e?

Old error message: UserWarning: depends_on chain references missing node 'transform'
New error message: UserWarning: depends_on chain transform references missing node 'transform'

The KeyError is just the name of the missing entry.

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I think that's a lucky example, what I'm interested in is which node is causing the problem, and I get a message like so:

WARNING root:fileloading_test.py:31 UserWarning: depends_on chain /entry/instrument/detector_panel_2/transformations/stageZ references missing node 'depends_on'

Run against 443503_00032754.hdf

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The CI is complaining as the tests at

scippnexus/tests/nxtransformations_test.py

Lines 727 to 735 in 7878e8a

def test_compute_positions_warns_if_depends_on_is_dead_link(h5root):
instrument = snx.create_class(h5root, 'instrument', snx.NXinstrument)
detector = create_detector(instrument)
snx.create_field(detector, 'depends_on', sc.scalar('transform'))
root = make_group(h5root)
with pytest.warns(UserWarning, match='depends_on chain references missing node'):
loaded = root[()]
with pytest.warns(UserWarning, match='depends_on chain references missing node'):
snx.compute_positions(loaded)
also need to be updated.

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I ran it locally like so UserWarning(f'depends_on chain references missing node {e} {depends_on}'), and that was good enough for me then although it doesn't read as nicely. If that makes it easier to do the matching though you could do that, in case you match multiple warnings using wildcards

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@nvaytet nvaytet Nov 11, 2024 •
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Replace the match with match='depends_on chain .* references missing node' ?

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done, let's see if it works

stacklevel=2,
)
return None
return chain
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