Hi Jeff,
Sorry for the trouble, and yes I can confirm this trouble. It's actually
not specific to MacOS version. It appears to be related to Python 3.7.6
(yes, 3.7.5 and 3.8.0 were OK) breaking pyepics on all systems.
Unfortunately, a "conda update" will now install Python 3.7.6.
For now, I would suggest just removing pyepics from the installation (it's
not really necessary for Larch functionality) with
rm -rf /Users/jterry/anaconda3/lib/python3.7/site-packages/epics/
I think that should work, at least until pyepics gets fixed.
On Thu, Jan 9, 2020 at 2:37 AM Jeff Terry <ter...@iit.edu> wrote:
> Hi Matt,
>
> I had to upgrade my Mac to OS X 10.15 and it blew up my Anaconda
> distribution which has forced me to reinstall everything from scratch.
>
> Now whether I install larch from source or by using conda, I get the
> following error:
>
> Traceback (most recent call last):
> File "/Users/jterry/anaconda3/lib/python3.7/ctypes/__init__.py", line
> 97, in CFUNCTYPE
> return _c_functype_cache[(restype, argtypes, flags)]
> KeyError: (None, (<class 'epics.dbr.access_rights_handler_args'>,), 1)
>
> During handling of the above exception, another exception occurred:
>
> Traceback (most recent call last):
> File "/Users/jterry/anaconda3/bin/larch", line 11, in <module>
> load_entry_point('xraylarch==0.9.46', 'console_scripts', 'larch')()
> File
> "/Users/jterry/anaconda3/lib/python3.7/site-packages/pkg_resources/__init__.py",
> line 489, in load_entry_point
> return get_distribution(dist).load_entry_point(group, name)
> File
> "/Users/jterry/anaconda3/lib/python3.7/site-packages/pkg_resources/__init__.py",
> line 2852, in load_entry_point
> return ep.load()
> File
> "/Users/jterry/anaconda3/lib/python3.7/site-packages/pkg_resources/__init__.py",
> line 2443, in load
> return self.resolve()
> File
> "/Users/jterry/anaconda3/lib/python3.7/site-packages/pkg_resources/__init__.py",
> line 2449, in resolve
> module = __import__(self.module_name, fromlist=['__name__'], level=0)
> File
> "/Users/jterry/anaconda3/lib/python3.7/site-packages/larch/__init__.py",
> line 50, in <module>
> from . import builtins
> File
> "/Users/jterry/anaconda3/lib/python3.7/site-packages/larch/builtins.py",
> line 33, in <module>
> from . import epics
> File
> "/Users/jterry/anaconda3/lib/python3.7/site-packages/larch/epics/__init__.py",
> line 9, in <module>
> import epics
> File
> "/Users/jterry/anaconda3/lib/python3.7/site-packages/epics/__init__.py",
> line 29, in <module>
> from . import ca
> File "/Users/jterry/anaconda3/lib/python3.7/site-packages/epics/ca.py",
> line 761, in <module>
> dbr.access_rights_handler_args)
> File "/Users/jterry/anaconda3/lib/python3.7/site-packages/epics/dbr.py",
> line 339, in make_callback
> return ctypes.CFUNCTYPE(None, args)(func)
> File "/Users/jterry/anaconda3/lib/python3.7/ctypes/__init__.py", line
> 99, in CFUNCTYPE
> class CFunctionType(_CFuncPtr):
> TypeError: item 1 in _argtypes_ passes a struct/union with a bitfield by
> value, which is unsupported.
>
>
>
> I think that line 11 is: load_entry_point('xraylarch==0.9.46',
> 'console_scripts', 'larch')()
>
> Any ideas on how to address this issue?
>
> Thanks,
>
> Jeff
>
> Jeff Terry
> Professor of Physics, Illinois Institute of Technology
> ter...@iit.edu
>
>
>
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--
--Matt Newville <newville at cars.uchicago.edu> 630-252-0431
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