id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blockedby	blocking	notify_on_close	platform	project
404	ChimeraX fails to start if tool is missing	Tom Goddard	Conrad Huang	"Trying to run any older version of ChimeraX fails because it does not find the ""stl"" tool which is apparently in some cache file and exists in newer ChimeraX versions.

$ ~/Desktop/ChimeraX\ old/ChimeraX\ July\ 20,\ 2016.app/Contents/MacOS/ChimeraX 
ERROR: Traceback (most recent call last):
  File ""/Users/goddard/Desktop/ChimeraX old/ChimeraX July 20, 2016.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/core/toolshed/__init__.py"", line 1262, in initialize
    f = self._get_module().initialize
  File ""/Users/goddard/Desktop/ChimeraX old/ChimeraX July 20, 2016.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/core/toolshed/__init__.py"", line 1287, in _get_module
    m = importlib.import_module(self._module_name)
  File ""/Users/goddard/Desktop/ChimeraX old/ChimeraX July 20, 2016.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/importlib/__init__.py"", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File ""<frozen importlib._bootstrap>"", line 986, in _gcd_import
  File ""<frozen importlib._bootstrap>"", line 969, in _find_and_load
  File ""<frozen importlib._bootstrap>"", line 956, in _find_and_load_unlocked
ImportError: No module named 'chimerax.stl'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File ""/Users/goddard/Desktop/ChimeraX old/ChimeraX July 20, 2016.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/runpy.py"", line 170, in _run_module_as_main
    ""__main__"", mod_spec)
  File ""/Users/goddard/Desktop/ChimeraX old/ChimeraX July 20, 2016.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/runpy.py"", line 85, in _run_code
    exec(code, run_globals)
  File ""/Users/goddard/Desktop/ChimeraX old/ChimeraX July 20, 2016.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/ChimeraX_main.py"", line 548, in <module>
    raise SystemExit(init(sys.argv))
  File ""/Users/goddard/Desktop/ChimeraX old/ChimeraX July 20, 2016.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/ChimeraX_main.py"", line 387, in init
    sess.toolshed.bootstrap_bundles(sess)
  File ""/Users/goddard/Desktop/ChimeraX old/ChimeraX July 20, 2016.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/core/toolshed/__init__.py"", line 498, in bootstrap_bundles
    bi.initialize(session)
  File ""/Users/goddard/Desktop/ChimeraX old/ChimeraX July 20, 2016.app/Contents/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/chimerax/core/toolshed/__init__.py"", line 1265, in initialize
    % self.name)
chimerax.core.toolshed.ToolshedError: no initialize function found for bundle ""stl""
"	defect	closed	major		Tool Shed		fixed		gregc@…				all	ChimeraX