Hi Henry, The .py extension is for files containing Python code. The fact that the first line of your file is "@<TRIPOS>MOLECULE" indicates that it is a Sybyl Mol2 file and therefore should have a .mol2 extension. Try renaming the file to have a .mol2 extension and then try opening it. --Eric Eric Pettersen UCSF Computer Graphics Lab

On Jan 4, 2022, at 7:40 AM, Henry Shook via Chimera-users wrote:

Chimera User Support,

I'm working on dockprepping the sars-2 main protease and whenever I try and save it as a .py file, I can't open it from sources other than the saved session I wrote. Whenever I try and open it from a dropbox or my finder, I get the message:

Error while processing /Users/8642165/Desktop/Research/DC AP Research /[7l0d]DOCKPREPPEDFINAL.py: File "[7l0d]DOCKPREPPEDFINAL.py", line 1 @<TRIPOS>MOLECULE ^ SyntaxError: invalid syntax

File "/Applications/Chimera.app/Contents/Resources/share/chimera/__init__.py", line 1325, in _openPython loadFunc(sandboxName, fileName, f)

See reply log for Python traceback.

Is there any way that I can fix this problem?

Thanks,

Henry Shook

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