Crash on startup Big Sur 11.0 Beta (20A5374i)

[mcm35@…]

I know this is still a beta operating system,  but ChimeraX previously ran without problems. I now crashes on startup. Here’s the output when it’s started form a terminal session:

Traceback (most recent call last):
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/platform/darwin.py", line 38, in GL
    mode=ctypes.RTLD_GLOBAL
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/platform/ctypesloader.py", line 36, in loadLibrary
    return _loadLibraryWindows(dllType, name, mode)
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/platform/ctypesloader.py", line 89, in _loadLibraryWindows
    return dllType( name, mode )
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/ctypes/__init__.py", line 364, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: ('dlopen(OpenGL, 10): image not found', 'OpenGL', None)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/ChimeraX_main.py", line 919, in <module>
    exit_code = init(sys.argv)
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/ChimeraX_main.py", line 460, in init
    sess = session.Session(app_name, debug=opts.debug, silent=opts.silent, minimal=opts.safe_mode)
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/chimerax/core/session.py", line 456, in __init__
    from chimerax.graphics.gsession import register_graphics_session_save
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/chimerax/graphics/__init__.py", line 34, in <module>
    from .opengl import Texture, Lighting, Material
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/chimerax/graphics/opengl.py", line 61, in <module>
    from OpenGL import GL
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/GL/__init__.py", line 3, in <module>
    from OpenGL import error as _error
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/error.py", line 12, in <module>
    from OpenGL import platform, _configflags
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/platform/__init__.py", line 36, in <module>
    _load()
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/platform/__init__.py", line 33, in _load
    plugin.install(globals())
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/platform/baseplatform.py", line 97, in install
    namespace[ name ] = getattr(self,name,None)
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/platform/baseplatform.py", line 15, in __get__
    value = self.fget( obj )
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/platform/darwin.py", line 62, in GetCurrentContext
    return self.CGL.CGLGetCurrentContext
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/platform/baseplatform.py", line 15, in __get__
    value = self.fget( obj )
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/platform/darwin.py", line 45, in CGL
    def CGL(self): return self.GL
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/platform/baseplatform.py", line 15, in __get__
    value = self.fget( obj )
  File "/Applications/ChimeraX-1.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/PyOpenGL-3.1.5-py3.7.egg/OpenGL/platform/darwin.py", line 41, in GL
    raise ImportError("Unable to load OpenGL library", *err.args)
ImportError: ('Unable to load OpenGL library', 'dlopen(OpenGL, 10): image not found', 'OpenGL', None)

__martin

[pett]

Reported by Martin Moncrieffe

[Tom Goddard]

Use tonight's ChimeraX daily build. I put a fix in for Big Sur. The problem is that the Python ctypes module does not find libraries, OpenGL in this case, on Big Sur. Python will eventually be fixed but for now I put a work-around fix into our PyOpenGL.

Duplicate of #3746.

[goddard@…]

Last night's Mac build failed (transient Apple notarization failure).  So the Big Sur version is not yet on the download page.

[Tom Goddard]

The current ChimeraX daily build works on Big Sur.