Hi Alexander,

  Your error says it can't import libpython3.7m.so the Python language system library.  That suggests that you ran your test.py script in a strange way.  A few ways to run your Python script are

$ chimerax test.py

Don't start a graphical user interface.

$ chimerax --nogui.py

Start ChimeraX and after it starts use a ChimeraX command to open the script

$ chimerax
ChimeraX command "open test.py"

  Tom



On Apr 22, 2021, at 8:34 AM, Alexander Julian <ajulian@hawk.iit.edu> wrote:

Good morning,

I am currently trying to create a python script that hides atoms and shows ribbons in a .pdb file.

However, I am getting an error while trying to initialize a session. I've been trying to debug the problem to the best of my ability, but I am unable to figure out the issue.

My code:
```
import chimerax.core.session as cxsession
session = cxsession.Session('name')
```

My error:
```
 File "./test.py", line 15, in <module>
    session = cxsession.Session('name')
  File "/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/session.py", line 437, in __init__
    self.app_name = app_name
  File "/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/session.py", line 508, in __setattr__
    if not name.startswith('_') and self.snapshot_methods(value, base_type=StateManager) is not None:
  File "/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/session.py", line 535, in snapshot_methods
    from .serialize import PRIMITIVE_TYPES
  File "/opt/UCSF/ChimeraX/lib/python3.7/site-packages/chimerax/core/serialize.py", line 42, in <module>
    from ._serialize import msgpack_serialize_stream, msgpack_deserialize_stream, PRIMITIVE_TYPES
ImportError: libpython3.7m.so.1.0: cannot open shared object file: No such file or directory
```

I look forward to your assistance.

Best,
Alexander

--
Alexander T. Julian
PhD Student, Department of Biology, Microbiology
Bachelor of Science, Biomedical Engineering, Cell and Tissue Specialization 2021
Master of Advanced Study, Chemical Engineering 2021
Illinois Institute of Technology
Chicago, IL 60616
Phone (727)-735-7104
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