Fix pick channels crash when _orig_units is None (#11314)#14006
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CedricConday wants to merge 2 commits into
Open
Fix pick channels crash when _orig_units is None (#11314)#14006CedricConday wants to merge 2 commits into
CedricConday wants to merge 2 commits into
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Picking/reordering channels built {k: v for ... in self._orig_units.items()}
unconditionally, raising AttributeError when _orig_units is None (as produced
by some readers / RawArray flows). Guard for a falsy _orig_units. Adds a test.
CedricConday
requested review from
agramfort,
drammock,
larsoner and
mscheltienne
as code owners
larsoner
reviewed
Jun 30, 2026
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| import numpy as np | ||
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| import mne |
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No need to nest these they're required by MNE
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Fixes #11314
What was wrong
When picking/reordering channels on a
Raw, the code rebuilds_orig_units:If
self._orig_unitsisNone(which happens with some readers andRawArrayflows), this raisesAttributeError: 'NoneType' object has no attribute 'items'. The pick itself otherwise succeeds.Fix
Only rebuild
_orig_unitswhen it is truthy; leaveNone/empty as-is.Test
Adds
test_pick_channels_orig_units_none: picking with_orig_units = Noneno longer raises. Verified it raisesAttributeErroronmainand passes with this change.AI-assisted, human-reviewed — I'm an AI engineer; I find, fix, and test with AI, then review and verify before opening.