Fails to render tabs in neuronal units section.

[rcpeene]

I am attempting to inspect the nwb file named sub-699733573_ses-715093703.nwb here in Dandiset:000021. When clicking on the Units section, and clicking on any of the tabs Raster Grid , Tuning Curve, or Combined, this error shows up.

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
File ~\AppData\Local\Programs\Python\Python39\lib\site-packages\ipywidgets\widgets\widget.py:756, in Widget._handle_msg(self, msg)
    754         if 'buffer_paths' in data:
    755             _put_buffers(state, data['buffer_paths'], msg['buffers'])
--> 756         self.set_state(state)
    758 # Handle a state request.
    759 elif method == 'request_state':

File ~\AppData\Local\Programs\Python\Python39\lib\site-packages\ipywidgets\widgets\widget.py:625, in Widget.set_state(self, sync_data)
    622 if name in self.keys:
    623     from_json = self.trait_metadata(name, 'from_json',
    624                                     self._trait_from_json)
--> 625     self.set_trait(name, from_json(sync_data[name], self))

File ~\AppData\Local\Programs\Python\Python39\lib\contextlib.py:126, in _GeneratorContextManager.__exit__(self, typ, value, traceback)
    124 if typ is None:
    125     try:
--> 126         next(self.gen)
    127     except StopIteration:
    128         return False

File ~\AppData\Local\Programs\Python\Python39\lib\site-packages\traitlets\traitlets.py:1371, in HasTraits.hold_trait_notifications(self)
   1369 for changes in cache.values():
   1370     for change in changes:
-> 1371         self.notify_change(change)

File ~\AppData\Local\Programs\Python\Python39\lib\site-packages\ipywidgets\widgets\widget.py:686, in Widget.notify_change(self, change)
    683     if name in self.keys and self._should_send_property(name, getattr(self, name)):
    684         # Send new state to front-end
    685         self.send_state(key=name)
--> 686 super(Widget, self).notify_change(change)

File ~\AppData\Local\Programs\Python\Python39\lib\site-packages\traitlets\traitlets.py:1386, in HasTraits.notify_change(self, change)
   1384 def notify_change(self, change):
   1385     """Notify observers of a change event"""
-> 1386     return self._notify_observers(change)

File ~\AppData\Local\Programs\Python\Python39\lib\site-packages\traitlets\traitlets.py:1431, in HasTraits._notify_observers(self, event)
   1428 elif isinstance(c, EventHandler) and c.name is not None:
   1429     c = getattr(self, c.name)
-> 1431 c(event)

File ~\AppData\Local\Programs\Python\Python39\lib\site-packages\nwbwidgets\base.py:161, in lazy_tabs.<locals>.on_selected_index(change)
    159 def on_selected_index(change):
    160     if isinstance(change.owner.children[change.new], widgets.HTML):
--> 161         children[change.new] = vis2widget(tabs_spec[change.new][1](node))
    162         change.owner.children = children

File ~\AppData\Local\Programs\Python\Python39\lib\site-packages\nwbwidgets\misc.py:1188, in RasterGridWidget.__init__(self, units, trials, unit_index, units_trials_controller)
   1179     units_trials_controller = UnitsAndTrialsControllerWidget(
   1180         units=units,
   1181         trials=trials,
   1182         unit_index=unit_index
   1183     )
   1184     self.children = [units_trials_controller]
   1186 self.fig = interactive_output(
   1187     f=raster_grid,
-> 1188     controls=units_trials_controller.controls,
   1189     fixed=units_trials_controller.fixed
   1190 )
   1192 self.children += tuple([self.fig])

AttributeError: 'UnitsAndTrialsControllerWidget' object has no attribute 'controls'

[CodyCBakerPhD]

Hi there - sorry for the delayed response

Quick question while we look into this - what version of NWB Widgets are you using?

[rcpeene]

version 0.10.0

[CodyCBakerPhD]

Can confirm this is still an issue in v0.10.1

For easy reproducibility

import h5py
import fsspec
from fsspec.implementations.cached import CachingFileSystem
from pynwb import NWBHDF5IO

s3_url = "https://dandiarchive.s3.amazonaws.com/blobs/f5f/175/f5f1752f-5227-47d5-8f75-cd71937878aa"
cfs = CachingFileSystem(
    fs=fsspec.filesystem("http"),
    cache_storage="/home/jovyan/fsspec_cache",  # Local folder for the cache
)
file_system = cfs.open(s3_url, "rb")
file = h5py.File(file_system)
io = NWBHDF5IO(file=file, load_namespaces=True)
nwbfile = io.read()

Then navigate to Units/tuning tab

I was also surprised at how long the units section took to render, guessing that's due to it loading in all unit properties (including spike features like amplitude)