conda environment for 2025_1

[prjemian]

• close conda environment for 2025_1 #333

[prjemian]

Included dependencies from https://github.com/BCDA-APS/bs_model_instrument/blob/main/pyproject.toml

[coveralls]

Pull Request Test Coverage Report for Build 12958363196

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 83.197%

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Totals
Change from base Build 12170875078:	0.0%
Covered Lines:	1020
Relevant Lines:	1226

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💛 - Coveralls

[prjemian]

To be merged 2025-01-24 unless there are objections.

[prjemian]

Trouble with import ophyd:

ChannelAccessException: loading Epics CA DLL failed: libncurses.so.5: cannot open shared object file: No such file or directory

(bluesky_2025_1) jemian@otz ~/bluesky $ ipython
Python 3.11.11 | packaged by conda-forge | (main, Dec  5 2024, 14:17:24) [GCC 13.3.0]
Type 'copyright', 'credits' or 'license' for more information
IPython 8.31.0 -- An enhanced Interactive Python. Type '?' for help.

In [1]: import ophyd
---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
File ~/.conda/envs/bluesky_2025_1/lib/python3.11/site-packages/epics/ca.py:383, in initialize_libca()
    381     if os.name == 'nt':
    382         load_dll(find_libCom())
--> 383     libca = load_dll(find_libca())
    384 except Exception as exc:
    385     raise ChannelAccessException('loading Epics CA DLL failed: ' + str(exc))

File ~/.conda/envs/bluesky_2025_1/lib/python3.11/ctypes/__init__.py:454, in LibraryLoader.LoadLibrary(self, name)
    453 def LoadLibrary(self, name):
--> 454     return self._dlltype(name)

File ~/.conda/envs/bluesky_2025_1/lib/python3.11/ctypes/__init__.py:376, in CDLL.__init__(self, name, mode, handle, use_errno, use_last_error, winmode)
    373 self._FuncPtr = _FuncPtr
    375 if handle is None:
--> 376     self._handle = _dlopen(self._name, mode)
    377 else:
    378     self._handle = handle

OSError: libncurses.so.5: cannot open shared object file: No such file or directory
---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
File ~/.conda/envs/bluesky_2025_1/lib/python3.11/site-packages/epics/ca.py:383, in initialize_libca()
    382         load_dll(find_libCom())
--> 383     libca = load_dll(find_libca())
    384 except Exception as exc:

File ~/.conda/envs/bluesky_2025_1/lib/python3.11/ctypes/__init__.py:454, in LibraryLoader.LoadLibrary(self, name)
    453 def LoadLibrary(self, name):
--> 454     return self._dlltype(name)

File ~/.conda/envs/bluesky_2025_1/lib/python3.11/ctypes/__init__.py:376, in CDLL.__init__(self, name, mode, handle, use_errno, use_last_error, winmode)
    375 if handle is None:
--> 376     self._handle = _dlopen(self._name, mode)
    377 else:

OSError: libncurses.so.5: cannot open shared object file: No such file or directory

During handling of the above exception, another exception occurred:

ChannelAccessException                    Traceback (most recent call last)
Cell In[1], line 1
----> 1 import ophyd

File ~/.conda/envs/bluesky_2025_1/lib/python3.11/site-packages/ophyd/__init__.py:89
     85         raise RuntimeError("control layer not set, " "unsure how you got to this state")
     86     return cl
---> 89 set_cl()
     91 # Areadetector-related
     92 from .areadetector import *  # noqa: F401, F402, E402, F403

File ~/.conda/envs/bluesky_2025_1/lib/python3.11/site-packages/ophyd/__init__.py:24, in set_cl(control_layer, pv_telemetry)
     22 for c_type in known_layers:
     23     try:
---> 24         set_cl(c_type, pv_telemetry=pv_telemetry)
     25     except ImportError:
     26         continue

File ~/.conda/envs/bluesky_2025_1/lib/python3.11/site-packages/ophyd/__init__.py:51, in set_cl(control_layer, pv_telemetry)
     48 else:
     49     raise ValueError("unknown control_layer")
---> 51 shim.setup(logger)
     53 exports = (
     54     "setup",
     55     "caput",
   (...)
     61     "get_dispatcher",
     62 )
     63 # this sets the module level value

File ~/.conda/envs/bluesky_2025_1/lib/python3.11/site-packages/ophyd/_pyepics_shim.py:203, in setup(logger)
    199     _dispatcher = None
    201 logger.debug("Installing event dispatcher")
    202 _dispatcher = EventDispatcher(
--> 203     thread_class=PyepicsCallbackThread, context=ca.current_context(), logger=logger
    204 )
    205 atexit.register(_cleanup)
    206 return _dispatcher

File ~/.conda/envs/bluesky_2025_1/lib/python3.11/site-packages/epics/ca.py:596, in withCA.<locals>.wrapper(*args, **kwds)
    594 global libca
    595 if libca is None:
--> 596     initialize_libca()
    597 elif libca is _LIBCA_FINALIZED:
    598     return  # Avoid raising exceptions when Python shutting down

File ~/.conda/envs/bluesky_2025_1/lib/python3.11/site-packages/epics/ca.py:385, in initialize_libca()
    383     libca = load_dll(find_libca())
    384 except Exception as exc:
--> 385     raise ChannelAccessException('loading Epics CA DLL failed: ' + str(exc))
    387 ca_context = {False:0, True:1}[PREEMPTIVE_CALLBACK]
    388 ret = libca.ca_context_create(ca_context)

ChannelAccessException: loading Epics CA DLL failed: libncurses.so.5: cannot open shared object file: No such file or directory

[prjemian]

With these changes, import ophyd passes. Also, ophyd objects work as expected.

[prjemian]

@tacaswell raised a good point on Bluesky's Mattermost discussion:

I strongly suggest you prefer conda packages over wheels. See https://pypackaging-native.github.io/ for a long discussion of the technical (and social) issues with the wheel packaging ecosystem