[Chimera-users] AttributeError of "Model Panel" when using nogui mode to save session

[Eric Pettersen]

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 at 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​)​
> 
> 
> The content of run.cmd
> 
> ​-------------------------------------
> 
> 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
> 
> -------------------------------------
> 
> The error message returned
> 
> -------------------------------------
> 
> 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.
> 
> --------------------------------------​
> 
> 
> I've tested ​1.16 (build 42360) and 1.15 (build 42233). Both of them failed.
> 
> ​ 
> ​​ 
> ​
> 
> 
> 
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