Hi, This is a bug. It is fixed in tomorrow's daily build (look for a build dated Dec. 20, 2022 or later). You can get your script to run right now by preventing the Model Panel tool from auto-starting. Start Chimera normally (i.e. not nogui) and use Favorites→Add to Favorites/Toolbar... to turn off Model Panel auto-starting and click Save. Then your script should run.

--Eric

Eric Pettersen UCSF Computer Graphics Lab

On Dec 20, 2022, at 12:06 AM, 夏前程 via Chimera-users chimera-users@cgl.ucsf.edu wrote:

Hi,

I've tried to use chimera nogui mode to save chimera sessions for a large number of tasks (one session for each task). However, an error message was returned and without the wanted output.py being written. The command I used is chimera --nogui --silent run.cmd. ( followed this https://www.cgl.ucsf.edu/pipermail/chimera-users/2011-October/006863.html%E2...

The content of run.cmd

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background solid white set silhouette open rec.crg.pdb xtal-lig.pdb sel #1-2 zone sel 5 ~sel #1-2 sel up ~rib ~ sel color white sel color byhet sel rlabel sel color black ,lr dis sel ~dis HC open rec.crg.pdb save output.py stop

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The error message returned

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Starting extension 'Model Panel' failed

Error processing trigger "save session": AttributeError: 'ModelPanel' object has no attribute '_updateHandler'

File "/home/xiaqc/.local/UCSF-Chimera64-1.16/share/ModelPanel/base.py", line 1301, in _saveGroups if _mp._updateHandler:

See reply log for Python traceback.

Error while processing run.cmd: AttributeError: 'ModelPanel' object has no attribute '_updateHandler'

File "/home/xiaqc/.local/UCSF-Chimera64-1.16/share/ModelPanel/base.py", line 1301, in _saveGroups if _mp._updateHandler:

See reply log for Python traceback.

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I've tested ​1.16 (build 42360) and 1.15 (build 42233). Both of them failed.

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