Color by attribute traceback for unknown attribute

[goddard@…]

The following bug report has been submitted:
Platform:        macOS-10.15.7-x86_64-i386-64bit
ChimeraX Version: 1.3.dev202105190558 (2021-05-19 05:58:03 UTC)
Description
Color by attribute for a non-existent attribute name gives a traceback.  Should give a simple message that attribute does not exist.

Log:
UCSF ChimeraX version: 1.3.dev202105190558 (2021-05-19)  
© 2016-2021 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open 1a0m format mmcif fromDatabase pdb

1a0m title:  
1.1 angstrom crystal structure of A-conotoxin [TYR15]-epi [more info...]  
  
Chain information for 1a0m #1  
---  
Chain | Description  
A B | α-conotoxin [TYR15]-epi  
  
Non-standard residues in 1a0m #1  
---  
NH2 — amino group  
  

> color byattribute something #1

Traceback (most recent call last):  
File "/Users/goddard/Desktop/ChimeraX May 19
2021.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/cmd_line/tool.py", line 280, in execute  
cmd.run(cmd_text)  
File "/Users/goddard/Desktop/ChimeraX May 19
2021.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/commands/cli.py", line 2854, in run  
result = ci.function(session, **kw_args)  
File "/Users/goddard/Desktop/ChimeraX May 19
2021.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/std_commands/color.py", line 1082, in color_by_attr  
attr_name, class_obj = parse_attribute_name(session, attr_name,
allowable_types=[int, float])  
File "/Users/goddard/Desktop/ChimeraX May 19
2021.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/std_commands/defattr.py", line 288, in parse_attribute_name  
allowable_attrs =
session.get_state_manager(MANAGER_NAME).attributes_returning(  
File "/Users/goddard/Desktop/ChimeraX May 19
2021.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/attributes.py", line 201, in attributes_returning  
for attr_name, types in builtin_attr_info.items():  
AttributeError: 'list' object has no attribute 'items'  
  
AttributeError: 'list' object has no attribute 'items'  
  
File "/Users/goddard/Desktop/ChimeraX May 19
2021.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/attributes.py", line 201, in attributes_returning  
for attr_name, types in builtin_attr_info.items():  
  
See log for complete Python traceback.  
  




OpenGL version: 4.1 ATI-3.10.18
OpenGL renderer: AMD Radeon Pro Vega 20 OpenGL Engine
OpenGL vendor: ATI Technologies Inc.Hardware:

    Hardware Overview:

      Model Name: MacBook Pro
      Model Identifier: MacBookPro15,3
      Processor Name: 8-Core Intel Core i9
      Processor Speed: 2.4 GHz
      Number of Processors: 1
      Total Number of Cores: 8
      L2 Cache (per Core): 256 KB
      L3 Cache: 16 MB
      Hyper-Threading Technology: Enabled
      Memory: 32 GB
      Boot ROM Version: 1037.147.4.0.0 (iBridge: 17.16.16610.0.0,0)

Software:

    System Software Overview:

      System Version: macOS 10.15.7 (19H2)
      Kernel Version: Darwin 19.6.0
      Time since boot: 10 days 4:39

Graphics/Displays:

    Intel UHD Graphics 630:

      Chipset Model: Intel UHD Graphics 630
      Type: GPU
      Bus: Built-In
      VRAM (Dynamic, Max): 1536 MB
      Vendor: Intel
      Device ID: 0x3e9b
      Revision ID: 0x0002
      Automatic Graphics Switching: Supported
      gMux Version: 5.0.0
      Metal: Supported, feature set macOS GPUFamily2 v1

    Radeon Pro Vega 20:

      Chipset Model: Radeon Pro Vega 20
      Type: GPU
      Bus: PCIe
      PCIe Lane Width: x8
      VRAM (Total): 4 GB
      Vendor: AMD (0x1002)
      Device ID: 0x69af
      Revision ID: 0x00c0
      ROM Revision: 113-D2060I-087
      VBIOS Version: 113-D20601MA0T-016
      Option ROM Version: 113-D20601MA0T-016
      EFI Driver Version: 01.01.087
      Automatic Graphics Switching: Supported
      gMux Version: 5.0.0
      Metal: Supported, feature set macOS GPUFamily2 v1
      Displays:
        Color LCD:
          Display Type: Built-In Retina LCD
          Resolution: 2880 x 1800 Retina
          Framebuffer Depth: 24-Bit Color (ARGB8888)
          Main Display: Yes
          Mirror: Off
          Online: Yes
          Automatically Adjust Brightness: No
          Connection Type: Internal

Locale: (None, 'UTF-8')
PyQt5 5.15.2, Qt 5.15.2
Installed Packages:
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    appdirs: 1.4.4
    appnope: 0.1.2
    Babel: 2.9.1
    backcall: 0.2.0
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    certifi: 2020.12.5
    cftime: 1.4.1
    chardet: 4.0.0
    ChimeraX-AddCharge: 1.1.3
    ChimeraX-AddH: 2.1.6
    ChimeraX-AlignmentAlgorithms: 2.0
    ChimeraX-AlignmentHdrs: 3.2
    ChimeraX-AlignmentMatrices: 2.0
    ChimeraX-Alignments: 2.1
    ChimeraX-AmberInfo: 1.0
    ChimeraX-Arrays: 1.0
    ChimeraX-Atomic: 1.20.1
    ChimeraX-AtomicLibrary: 3.2.1
    ChimeraX-AtomSearch: 2.0
    ChimeraX-AtomSearchLibrary: 1.0
    ChimeraX-AxesPlanes: 2.0
    ChimeraX-BasicActions: 1.1
    ChimeraX-BILD: 1.0
    ChimeraX-BlastProtein: 1.1.1
    ChimeraX-BondRot: 2.0
    ChimeraX-BugReporter: 1.0
    ChimeraX-BuildStructure: 2.5.2
    ChimeraX-Bumps: 1.0
    ChimeraX-BundleBuilder: 1.1
    ChimeraX-ButtonPanel: 1.0
    ChimeraX-CageBuilder: 1.0
    ChimeraX-CellPack: 1.0
    ChimeraX-Centroids: 1.1
    ChimeraX-ChemGroup: 2.0
    ChimeraX-Clashes: 2.1
    ChimeraX-ColorActions: 1.0
    ChimeraX-ColorGlobe: 1.0
    ChimeraX-ColorKey: 1.3
    ChimeraX-CommandLine: 1.1.4
    ChimeraX-ConnectStructure: 2.0
    ChimeraX-Contacts: 1.0
    ChimeraX-Core: 1.3.dev202105190558
    ChimeraX-CoreFormats: 1.0
    ChimeraX-coulombic: 1.3
    ChimeraX-Crosslinks: 1.0
    ChimeraX-Crystal: 1.0
    ChimeraX-CrystalContacts: 1.0
    ChimeraX-DataFormats: 1.1
    ChimeraX-Dicom: 1.0
    ChimeraX-DistMonitor: 1.1.3
    ChimeraX-DistUI: 1.0
    ChimeraX-Dssp: 2.0
    ChimeraX-EMDB-SFF: 1.0
    ChimeraX-ExperimentalCommands: 1.0
    ChimeraX-FileHistory: 1.0
    ChimeraX-FunctionKey: 1.0
    ChimeraX-Geometry: 1.1
    ChimeraX-gltf: 1.0
    ChimeraX-Graphics: 1.1
    ChimeraX-Hbonds: 2.1
    ChimeraX-Help: 1.1
    ChimeraX-HKCage: 1.3
    ChimeraX-IHM: 1.1
    ChimeraX-ImageFormats: 1.1
    ChimeraX-IMOD: 1.0
    ChimeraX-IO: 1.0.1
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    ChimeraX-ListInfo: 1.1.1
    ChimeraX-Log: 1.1.4
    ChimeraX-LookingGlass: 1.1
    ChimeraX-Maestro: 1.8.1
    ChimeraX-Map: 1.1
    ChimeraX-MapData: 2.0
    ChimeraX-MapEraser: 1.0
    ChimeraX-MapFilter: 2.0
    ChimeraX-MapFit: 2.0
    ChimeraX-MapSeries: 2.1
    ChimeraX-Markers: 1.0
    ChimeraX-Mask: 1.0
    ChimeraX-MatchMaker: 1.2.1
    ChimeraX-MDcrds: 2.2
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    ChimeraX-Meeting: 1.0
    ChimeraX-MLP: 1.1
    ChimeraX-mmCIF: 2.3
    ChimeraX-MMTF: 2.1
    ChimeraX-Modeller: 1.0.1
    ChimeraX-ModelPanel: 1.1
    ChimeraX-ModelSeries: 1.0
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    ChimeraX-Morph: 1.0
    ChimeraX-MouseModes: 1.1
    ChimeraX-Movie: 1.0
    ChimeraX-Neuron: 1.0
    ChimeraX-Nucleotides: 2.0.1
    ChimeraX-OpenCommand: 1.5
    ChimeraX-PDB: 2.4.1
    ChimeraX-PDBBio: 1.0
    ChimeraX-PDBLibrary: 1.0.1
    ChimeraX-PDBMatrices: 1.0
    ChimeraX-PickBlobs: 1.0
    ChimeraX-Positions: 1.0
    ChimeraX-PresetMgr: 1.0.1
    ChimeraX-PubChem: 2.0.1
    ChimeraX-ReadPbonds: 1.0
    ChimeraX-Registration: 1.1
    ChimeraX-RemoteControl: 1.0
    ChimeraX-ResidueFit: 1.0
    ChimeraX-RestServer: 1.1
    ChimeraX-RNALayout: 1.0
    ChimeraX-RotamerLibMgr: 2.0
    ChimeraX-RotamerLibsDunbrack: 2.0
    ChimeraX-RotamerLibsDynameomics: 2.0
    ChimeraX-RotamerLibsRichardson: 2.0
    ChimeraX-SaveCommand: 1.4
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    ChimeraX-Struts: 1.0
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    ChimeraX-SwapAA: 2.0
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    ChimeraX-TapeMeasure: 1.0
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    ChimeraX-Vive: 1.1
    ChimeraX-VolumeMenu: 1.0
    ChimeraX-VTK: 1.0
    ChimeraX-WavefrontOBJ: 1.0
    ChimeraX-WebCam: 1.0
    ChimeraX-WebServices: 1.0
    ChimeraX-Zone: 1.0
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    h5py: 2.10.0
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    imagecodecs: 2021.4.28
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[Eric Pettersen]

The Structure class wasn't registering its builtin attributes correctly.

A tad uncommon to run into since you have to both supply a non-existent attribute and also not specify the attribute level. Nonetheless, fixed in both develop and 1.2.