Trouble reading gzipped cif file: unexpected data value near line 1

[chimerax-bug-report@…]

The following bug report has been submitted:
Platform:        Windows-7-6.1.7601-SP1
ChimeraX Version: 0.8 (2018-10-05)
Description
(Describe the actions that caused this problem to occur here)

Log:
Startup Messages  
---  
note | available bundle cache has not been initialized yet  
  
UCSF ChimeraX version: 0.8 (2018-10-05)  
How to cite UCSF ChimeraX  

open C:/Users/rchi1/Desktop/1tup.cif.gz ↵

Traceback (most recent call last):  
  File "C:\Program Files\ChimeraX\bin\lib\site-packages\chimerax\ui\gui.py",
line 457, in dropEvent  
    _open_dropped_file(self.session, p)  
  File "C:\Program Files\ChimeraX\bin\lib\site-packages\chimerax\ui\gui.py",
line 1152, in _open_dropped_file  
    run(session, 'open %s' % quote_if_necessary(path))  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\commands\run.py", line 31, in run  
    results = command.run(text, log=log)  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\commands\cli.py", line 2562, in run  
    result = ci.function(session, **kw_args)  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\commands\open.py", line 41, in open  
    from_database=from_database, ignore_cache=ignore_cache, **kw))  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\commands\open.py", line 110, in open  
    models = handle_unknown_kw(session.models.open, paths, format=format,
name=name, **kw)  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\commands\open.py", line 62, in handle_unknown_kw  
    return f(*args, **kw)  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\models.py", line 575, in open  
    session, filenames, format=format, name=name, **kw)  
  File "C:\Program Files\ChimeraX\bin\lib\site-packages\chimerax\core\io.py",
line 444, in open_multiple_data  
    models, status = open_data(session, fspec, format=format, name=name, **kw)  
  File "C:\Program Files\ChimeraX\bin\lib\site-packages\chimerax\core\io.py",
line 404, in open_data  
    models, status = open_func(*args, **kw)  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\atomic\mmcif\\__init__.py", line 52, in open_file  
    log_info=log_info)  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\atomic\mmcif\mmcif.py", line 59, in open_mmcif  
    pointers = _mmcif.parse_mmCIF_file(path, categories, log, coordsets,
atomic)  
_mmcif.error: unexpected data value near line 1  
  

_mmcif.error: unexpected data value near line 1  
  
File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\atomic\mmcif\mmcif.py", line 59, in open_mmcif  
pointers = _mmcif.parse_mmCIF_file(path, categories, log, coordsets, atomic)  
  
See log for complete Python traceback.  
  

open C:/Users/rchi1/Desktop/1tup.cif.gz ↵

Traceback (most recent call last):  
  File "C:\Program Files\ChimeraX\bin\lib\site-packages\chimerax\ui\gui.py",
line 542, in _qt_safe  
    run(session, "open " \+ quote_if_necessary(paths[0]))  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\commands\run.py", line 31, in run  
    results = command.run(text, log=log)  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\commands\cli.py", line 2562, in run  
    result = ci.function(session, **kw_args)  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\commands\open.py", line 41, in open  
    from_database=from_database, ignore_cache=ignore_cache, **kw))  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\commands\open.py", line 110, in open  
    models = handle_unknown_kw(session.models.open, paths, format=format,
name=name, **kw)  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\commands\open.py", line 62, in handle_unknown_kw  
    return f(*args, **kw)  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\core\models.py", line 575, in open  
    session, filenames, format=format, name=name, **kw)  
  File "C:\Program Files\ChimeraX\bin\lib\site-packages\chimerax\core\io.py",
line 444, in open_multiple_data  
    models, status = open_data(session, fspec, format=format, name=name, **kw)  
  File "C:\Program Files\ChimeraX\bin\lib\site-packages\chimerax\core\io.py",
line 404, in open_data  
    models, status = open_func(*args, **kw)  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\atomic\mmcif\\__init__.py", line 52, in open_file  
    log_info=log_info)  
  File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\atomic\mmcif\mmcif.py", line 59, in open_mmcif  
    pointers = _mmcif.parse_mmCIF_file(path, categories, log, coordsets,
atomic)  
_mmcif.error: unexpected data value near line 1  
  

_mmcif.error: unexpected data value near line 1  
  
File "C:\Program Files\ChimeraX\bin\lib\site-
packages\chimerax\atomic\mmcif\mmcif.py", line 59, in open_mmcif  
pointers = _mmcif.parse_mmCIF_file(path, categories, log, coordsets, atomic)  
  
See log for complete Python traceback.  
  




OpenGL version: 3.3.13286 Core Profile Forward-Compatible Context FireGL 14.502.1005.0
OpenGL renderer: AMD FirePro W5100 (FireGL V) Graphics Adapter
OpenGL vendor: ATI Technologies Inc.

[Greg Couch]

Need to use temporary file