'Tasks' object has no attribute 'remove'

[chimerax-bug-report@…]

The following bug report has been submitted:
Platform:        macOS-10.16-x86_64-i386-64bit
ChimeraX Version: 1.4 (2022-06-03 23:39:42 UTC)
Description
(Describe the actions that caused this problem to occur here)

Log:
UCSF ChimeraX version: 1.4 (2022-06-03)  
© 2016-2022 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open /Users/itsadmin/Downloads/7l0q.pdb

7l0q.pdb title:  
Structure of NTS-NTSR1-gi complex In lipid nanodisc, canonical state, with ahd
[more info...]  
  
Chain information for 7l0q.pdb #1  
---  
Chain | Description | UniProt  
A | adenylate cyclase-inhibiting G α protein | GNAI1_HUMAN  
B | transducin β chain 1 | GBB1_HUMAN  
C | neurotensin receptor type 1 | NTR1_RAT  
D | neurotensin | NEUT_RAT  
G | transducin γ chain | GBG1_HUMAN  
  

> select /D

58 atoms, 59 bonds, 6 residues, 1 model selected  

> ui tool show "Model Loops"

> select ~sel

7798 atoms, 7950 bonds, 5 pseudobonds, 996 residues, 2 models selected  

> delete atoms (#!1 & sel)

> delete bonds (#!1 & sel)

> ui tool show "Show Sequence Viewer"

> sequence chain /D

Alignment identifier is 1/D  

> modeller refine 1/D:1:all-missing numModels 1 fast false adjacentFlexible 1
> protocol standard

Webservices job id: SCTTOJXYXXK5J62M  

Mismatch between Cocoa '\x0' and Carbon 'c' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(NoModifier)  

Mismatch between Cocoa '\x0' and Carbon 'C' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(ShiftModifier)  

Mismatch between Cocoa '\x0' and Carbon 'c' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(ControlModifier)  

Mismatch between Cocoa '\x0' and Carbon 'c' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(ShiftModifier|ControlModifier)  

Mismatch between Cocoa '\x0' and Carbon '\u00e7' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(AltModifier)  

Mismatch between Cocoa '\x0' and Carbon '\u00c7' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(ShiftModifier|AltModifier)  

Mismatch between Cocoa '\x0' and Carbon '\u00e7' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(ControlModifier|AltModifier)  

Mismatch between Cocoa '\x0' and Carbon '\u00c7' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(ShiftModifier|ControlModifier|AltModifier)  

Mismatch between Cocoa '\x0' and Carbon '\x3' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(MetaModifier)  

Mismatch between Cocoa '\x0' and Carbon '\x3' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(ShiftModifier|MetaModifier)  

Mismatch between Cocoa '\x0' and Carbon '\x3' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(ControlModifier|MetaModifier)  

Mismatch between Cocoa '\x0' and Carbon '\x3' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(ShiftModifier|ControlModifier|MetaModifier)  

Mismatch between Cocoa '\x0' and Carbon '\x3' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(AltModifier|MetaModifier)  

Mismatch between Cocoa '\x0' and Carbon '\x3' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(ShiftModifier|AltModifier|MetaModifier)  

Mismatch between Cocoa '\x0' and Carbon '\x3' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(ControlModifier|AltModifier|MetaModifier)  

Mismatch between Cocoa '\x0' and Carbon '\x3' for virtual key 8 with
QFlags<Qt::KeyboardModifier>(ShiftModifier|ControlModifier|AltModifier|MetaModifier)  

Destroying pre-existing alignment with identifier 1/D  
Alignment identifier is 1/D  

> ui tool show "Modeller Comparative"

> modeller comparative 1/D:1 numModels 1 fast false multichain true
> hetPreserve false hydrogens false waterPreserve false

Webservices job id: BKWNQK1O41YVVTTN  
Modeller job ID BKWNQK1O41YVVTTN finished  
Parameters  
---  
Chain pairing | ss  
Alignment algorithm | Needleman-Wunsch  
Similarity matrix | BLOSUM-62  
SS fraction | 0.3  
Gap open (HH/SS/other) | 18/18/6  
Gap extend | 1  
SS matrix |  |  | H | S | O  
---|---|---|---  
H | 6 | -9 | -6  
S |  | 6 | -6  
O |  |  | 4  
Iteration cutoff | 2  
  
Matchmaker 7l0q.pdb, chain D (#1) with chain_D, chain D (#), sequence
alignment score = 29.6  
RMSD between 6 pruned atom pairs is 0.942 angstroms; (across all 6 pairs:
0.942)  
  
Associated chain_D chain D to chain D with 0 mismatches and/or gaps  
Chain information for chain_D  
---  
Chain | Description  
2.1/D | No description available  
  

> ui tool show "Build Structure"

> ui tool show Rotamers

> toolshed show

> ui tool show AlphaFold

> alphafold match #1

Fetching AlphaFold database settings from
https://www.rbvi.ucsf.edu/chimerax/data/status/alphafold_database.json  
Fetching compressed AlphaFold P20068 from
https://alphafold.ebi.ac.uk/files/AF-P20068-F1-model_v2.cif  
1 AlphaFold model found using UniProt identifier: P20068 (chain D)  
AlphaFold chains matching 7l0q.pdb  
---  
Chain| UniProt Name| UniProt Id| RMSD| Length| Seen| % Id  
D | NEUT_RAT | P20068 | 2.50 | 6 | 6 | 100  
  
Opened 1 AlphaFold model  

> alphafold search #1

Webservices job id: M9QM4A5C7CGTIAKZ  

BLAST search returned no results.  

> alphafold predict #1

Running AlphaFold prediction  

> show target ab

> view #3.1 clip false

> show #!2 target m

> view #3 clip false

[Repeated 1 time(s)]

> hide #!2 target m

> hide #!1 target m

> show #!2 target m

> show #2.1 target m

[Repeated 1 time(s)]

> show #!3 target m

[Repeated 1 time(s)]

> view #3 clip false

[Repeated 2 time(s)]

> show #!1 target m

> hide #!2 target m

> show #!2 target m

> view #2 clip false

[Repeated 1 time(s)]

Populating font family aliases took 349 ms. Replace uses of missing font
family ".AppleSystemUIFont" with one that exists to avoid this cost.  

> save /Users/itsadmin/Desktop/123456.pdb models #3

> save /Users/itsadmin/Desktop/1234567.pdb models #2

> close session

Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/ui/gui.py", line 1051, in <lambda>  
close_action.triggered.connect(lambda *, s=self, sess=session:
s.file_close_cb(sess))  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/ui/gui.py", line 700, in file_close_cb  
run(session, 'close session')  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/commands/run.py", line 38, in run  
results = command.run(text, log=log, return_json=return_json)  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/commands/cli.py", line 2897, in run  
result = ci.function(session, **kw_args)  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/std_commands/close.py", line 60, in close_session  
session.reset()  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 541, in reset  
sm.reset_state(container, self)  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/tasks.py", line 547, in reset_state  
task.terminate()  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/tasks.py", line 155, in terminate  
self.session.tasks.remove(self)  
AttributeError: 'Tasks' object has no attribute 'remove'  
  
AttributeError: 'Tasks' object has no attribute 'remove'  
  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/tasks.py", line 155, in terminate  
self.session.tasks.remove(self)  
  
See log for complete Python traceback.  
  

> close session

Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/ui/gui.py", line 1051, in <lambda>  
close_action.triggered.connect(lambda *, s=self, sess=session:
s.file_close_cb(sess))  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/ui/gui.py", line 700, in file_close_cb  
run(session, 'close session')  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/commands/run.py", line 38, in run  
results = command.run(text, log=log, return_json=return_json)  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/commands/cli.py", line 2897, in run  
result = ci.function(session, **kw_args)  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/std_commands/close.py", line 60, in close_session  
session.reset()  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 541, in reset  
sm.reset_state(container, self)  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/tasks.py", line 547, in reset_state  
task.terminate()  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/tasks.py", line 155, in terminate  
self.session.tasks.remove(self)  
AttributeError: 'Tasks' object has no attribute 'remove'  
  
AttributeError: 'Tasks' object has no attribute 'remove'  
  
File
"/Applications/ChimeraX-1.4.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/tasks.py", line 155, in terminate  
self.session.tasks.remove(self)  
  
See log for complete Python traceback.  
  




OpenGL version: 4.1 INTEL-20.6.4
OpenGL renderer: Intel(R) Iris(TM) Plus Graphics 655
OpenGL vendor: Intel Inc.

Python: 3.9.11
Locale: UTF-8
Qt version: PyQt6 6.3.0, Qt 6.3.0
Qt runtime version: 6.3.0
Qt platform: cocoa
Hardware:

    Hardware Overview:

      Model Name: MacBook Pro
      Model Identifier: MacBookPro15,2
      Processor Name: Quad-Core Intel Core i5
      Processor Speed: 2.4 GHz
      Number of Processors: 1
      Total Number of Cores: 4
      L2 Cache (per Core): 256 KB
      L3 Cache: 6 MB
      Hyper-Threading Technology: Enabled
      Memory: 8 GB
      System Firmware Version: 2020.41.1.0.0 (iBridge: 21.16.1069.0.0,0)
      OS Loader Version: 577.140.2~15

Software:

    System Software Overview:

      System Version: macOS 13.6.1 (22G313)
      Kernel Version: Darwin 22.6.0
      Time since boot: 4天9小时37分钟

Graphics/Displays:

    Intel Iris Plus Graphics 655:

      Chipset Model: Intel Iris Plus Graphics 655
      Type: GPU
      Bus: Built-In
      VRAM (Dynamic, Max): 1536 MB
      Vendor: Intel
      Device ID: 0x3ea5
      Revision ID: 0x0001
      Metal Support: Metal 3
      Displays:
        Color LCD:
          Display Type: Built-In Retina LCD
          Resolution: 2560 x 1600 Retina
          Framebuffer Depth: 24-Bit Color (ARGB8888)
          Main Display: Yes
          Mirror: Off
          Online: Yes
          Automatically Adjust Brightness: No
          Connection Type: Internal


Installed Packages:
    alabaster: 0.7.12
    appdirs: 1.4.4
    appnope: 0.1.3
    Babel: 2.10.1
    backcall: 0.2.0
    blockdiag: 3.0.0
    certifi: 2021.10.8
    cftime: 1.6.0
    charset-normalizer: 2.0.12
    ChimeraX-AddCharge: 1.2.3
    ChimeraX-AddH: 2.1.11
    ChimeraX-AlignmentAlgorithms: 2.0
    ChimeraX-AlignmentHdrs: 3.2.1
    ChimeraX-AlignmentMatrices: 2.0
    ChimeraX-Alignments: 2.4.3
    ChimeraX-AlphaFold: 1.0
    ChimeraX-AltlocExplorer: 1.0.2
    ChimeraX-AmberInfo: 1.0
    ChimeraX-Arrays: 1.0
    ChimeraX-Atomic: 1.39.1
    ChimeraX-AtomicLibrary: 7.0
    ChimeraX-AtomSearch: 2.0.1
    ChimeraX-AxesPlanes: 2.1
    ChimeraX-BasicActions: 1.1
    ChimeraX-BILD: 1.0
    ChimeraX-BlastProtein: 2.1.1
    ChimeraX-BondRot: 2.0
    ChimeraX-BugReporter: 1.0
    ChimeraX-BuildStructure: 2.7
    ChimeraX-Bumps: 1.0
    ChimeraX-BundleBuilder: 1.1
    ChimeraX-ButtonPanel: 1.0
    ChimeraX-CageBuilder: 1.0
    ChimeraX-CellPack: 1.0
    ChimeraX-Centroids: 1.2
    ChimeraX-ChemGroup: 2.0
    ChimeraX-Clashes: 2.2.4
    ChimeraX-ColorActions: 1.0
    ChimeraX-ColorGlobe: 1.0
    ChimeraX-ColorKey: 1.5.1
    ChimeraX-CommandLine: 1.2.3
    ChimeraX-ConnectStructure: 2.0.1
    ChimeraX-Contacts: 1.0
    ChimeraX-Core: 1.4
    ChimeraX-CoreFormats: 1.1
    ChimeraX-coulombic: 1.3.2
    ChimeraX-Crosslinks: 1.0
    ChimeraX-Crystal: 1.0
    ChimeraX-CrystalContacts: 1.0
    ChimeraX-DataFormats: 1.2.2
    ChimeraX-Dicom: 1.1
    ChimeraX-DistMonitor: 1.1.5
    ChimeraX-Dssp: 2.0
    ChimeraX-EMDB-SFF: 1.0
    ChimeraX-ExperimentalCommands: 1.0
    ChimeraX-FileHistory: 1.0
    ChimeraX-FunctionKey: 1.0
    ChimeraX-Geometry: 1.2
    ChimeraX-gltf: 1.0
    ChimeraX-Graphics: 1.1
    ChimeraX-Hbonds: 2.1.2
    ChimeraX-Help: 1.2
    ChimeraX-HKCage: 1.3
    ChimeraX-IHM: 1.1
    ChimeraX-ImageFormats: 1.2
    ChimeraX-IMOD: 1.0
    ChimeraX-IO: 1.0.1
    ChimeraX-ItemsInspection: 1.0
    ChimeraX-Label: 1.1.1
    ChimeraX-ListInfo: 1.1.1
    ChimeraX-Log: 1.1.5
    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: 2.0.6
    ChimeraX-MDcrds: 2.6
    ChimeraX-MedicalToolbar: 1.0.1
    ChimeraX-Meeting: 1.0
    ChimeraX-MLP: 1.1
    ChimeraX-mmCIF: 2.7
    ChimeraX-MMTF: 2.1
    ChimeraX-Modeller: 1.5.5
    ChimeraX-ModelPanel: 1.3.2
    ChimeraX-ModelSeries: 1.0
    ChimeraX-Mol2: 2.0
    ChimeraX-Morph: 1.0
    ChimeraX-MouseModes: 1.1
    ChimeraX-Movie: 1.0
    ChimeraX-Neuron: 1.0
    ChimeraX-Nucleotides: 2.0.2
    ChimeraX-OpenCommand: 1.9
    ChimeraX-PDB: 2.6.6
    ChimeraX-PDBBio: 1.0
    ChimeraX-PDBLibrary: 1.0.2
    ChimeraX-PDBMatrices: 1.0
    ChimeraX-PickBlobs: 1.0
    ChimeraX-Positions: 1.0
    ChimeraX-PresetMgr: 1.1
    ChimeraX-PubChem: 2.1
    ChimeraX-ReadPbonds: 1.0.1
    ChimeraX-Registration: 1.1
    ChimeraX-RemoteControl: 1.0
    ChimeraX-ResidueFit: 1.0
    ChimeraX-RestServer: 1.1
    ChimeraX-RNALayout: 1.0
    ChimeraX-RotamerLibMgr: 2.0.1
    ChimeraX-RotamerLibsDunbrack: 2.0
    ChimeraX-RotamerLibsDynameomics: 2.0
    ChimeraX-RotamerLibsRichardson: 2.0
    ChimeraX-SaveCommand: 1.5.1
    ChimeraX-SchemeMgr: 1.0
    ChimeraX-SDF: 2.0
    ChimeraX-Segger: 1.0
    ChimeraX-Segment: 1.0
    ChimeraX-SelInspector: 1.0
    ChimeraX-SeqView: 2.6
    ChimeraX-Shape: 1.0.1
    ChimeraX-Shell: 1.0
    ChimeraX-Shortcuts: 1.1
    ChimeraX-ShowAttr: 1.0
    ChimeraX-ShowSequences: 1.0
    ChimeraX-SideView: 1.0
    ChimeraX-Smiles: 2.1
    ChimeraX-SmoothLines: 1.0
    ChimeraX-SpaceNavigator: 1.0
    ChimeraX-StdCommands: 1.8
    ChimeraX-STL: 1.0
    ChimeraX-Storm: 1.0
    ChimeraX-StructMeasure: 1.0.1
    ChimeraX-Struts: 1.0.1
    ChimeraX-Surface: 1.0
    ChimeraX-SwapAA: 2.0
    ChimeraX-SwapRes: 2.1.1
    ChimeraX-TapeMeasure: 1.0
    ChimeraX-Test: 1.0
    ChimeraX-Toolbar: 1.1.1
    ChimeraX-ToolshedUtils: 1.2.1
    ChimeraX-Tug: 1.0
    ChimeraX-UI: 1.18.3
    ChimeraX-uniprot: 2.2
    ChimeraX-UnitCell: 1.0
    ChimeraX-ViewDockX: 1.1.2
    ChimeraX-VIPERdb: 1.0
    ChimeraX-Vive: 1.1
    ChimeraX-VolumeMenu: 1.0
    ChimeraX-VTK: 1.0
    ChimeraX-WavefrontOBJ: 1.0
    ChimeraX-WebCam: 1.0
    ChimeraX-WebServices: 1.1.0
    ChimeraX-Zone: 1.0
    colorama: 0.4.4
    cxservices: 1.2
    cycler: 0.11.0
    Cython: 0.29.26
    debugpy: 1.6.0
    decorator: 5.1.1
    docutils: 0.17.1
    entrypoints: 0.4
    filelock: 3.4.2
    fonttools: 4.33.3
    funcparserlib: 1.0.0
    grako: 3.16.5
    h5py: 3.7.0
    html2text: 2020.1.16
    idna: 3.3
    ihm: 0.27
    imagecodecs: 2021.11.20
    imagesize: 1.3.0
    ipykernel: 6.6.1
    ipython: 7.31.1
    ipython-genutils: 0.2.0
    jedi: 0.18.1
    Jinja2: 3.0.3
    jupyter-client: 7.1.0
    jupyter-core: 4.10.0
    kiwisolver: 1.4.2
    line-profiler: 3.4.0
    lxml: 4.7.1
    lz4: 3.1.10
    MarkupSafe: 2.1.1
    matplotlib: 3.5.1
    matplotlib-inline: 0.1.3
    msgpack: 1.0.3
    nest-asyncio: 1.5.5
    netCDF4: 1.5.8
    networkx: 2.6.3
    numexpr: 2.8.1
    numpy: 1.22.1
    openvr: 1.16.802
    packaging: 21.0
    ParmEd: 3.4.3
    parso: 0.8.3
    pexpect: 4.8.0
    pickleshare: 0.7.5
    Pillow: 9.0.1
    pip: 21.3.1
    pkginfo: 1.8.2
    prompt-toolkit: 3.0.29
    psutil: 5.9.0
    ptyprocess: 0.7.0
    pycollada: 0.7.2
    pydicom: 2.2.2
    Pygments: 2.11.2
    PyOpenGL: 3.1.5
    PyOpenGL-accelerate: 3.1.5
    pyparsing: 3.0.9
    PyQt6-commercial: 6.3.0
    PyQt6-Qt6: 6.3.0
    PyQt6-sip: 13.3.1
    PyQt6-WebEngine-commercial: 6.3.0
    PyQt6-WebEngine-Qt6: 6.3.0
    python-dateutil: 2.8.2
    pytz: 2022.1
    pyzmq: 23.1.0
    qtconsole: 5.3.0
    QtPy: 2.1.0
    RandomWords: 0.3.0
    requests: 2.27.1
    scipy: 1.7.3
    setuptools: 59.8.0
    sfftk-rw: 0.7.2
    six: 1.16.0
    snowballstemmer: 2.2.0
    sortedcontainers: 2.4.0
    Sphinx: 4.3.2
    sphinx-autodoc-typehints: 1.15.2
    sphinxcontrib-applehelp: 1.0.2
    sphinxcontrib-blockdiag: 3.0.0
    sphinxcontrib-devhelp: 1.0.2
    sphinxcontrib-htmlhelp: 2.0.0
    sphinxcontrib-jsmath: 1.0.1
    sphinxcontrib-qthelp: 1.0.3
    sphinxcontrib-serializinghtml: 1.1.5
    suds-community: 1.0.0
    tables: 3.7.0
    tifffile: 2021.11.2
    tinyarray: 1.2.4
    tornado: 6.1
    traitlets: 5.1.1
    urllib3: 1.26.9
    wcwidth: 0.2.5
    webcolors: 1.11.1
    wheel: 0.37.1
    wheel-filename: 1.3.0