On Sep 23, 2021, at 6:40 AM, Christophe Leterrier via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:

This is the Traceback from the log:

Traceback (most recent call last):
  File "/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/session.py", line 887, in save
    session.save(output, version=version, include_maps=include_maps)
  File "/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/session.py", line 616, in save
    mgr.discovery(self._state_containers)
  File "/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/session.py", line 242, in discovery
    if sm is None and len(value) == 0:
TypeError: object of type 'SurfaceUpdaters' has no len()

TypeError: object of type 'SurfaceUpdaters' has no len()

File "/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/session.py", line 242, in discovery
if sm is None and len(value) == 0:

On Thu, 23 Sept 2021 at 15:38, Christophe Leterrier <christophe.leterrier@gmail.com> wrote:

HI,

When I'm saving a session displaying 3D image stacks as surfaces into a csx file, I get this error:

TypeError: object of type 'SurfaceUpdaters' has no len()

File "/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/session.py", line 242, in discovery
if sm is None and len(value) == 0:

However if I switch the displayed stacks as volume, then there is no error on save.

This is with the daily build 1.3.dev202109160803 (2021-09-16) on OSX Big Sur (Intel architecture).

Thanks,

Christophe

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