re-install latest production release of ophyd

[prjemian]

During user operations in November and December, we encountered problems (#114) such that the instrument had to stop using the bluesky software. Through various discussions and testing (prjemian/ipython-vm7#1, #114, bluesky/ophyd#776, bluesky/ophyd#776, bluesky/ophyd#782, bluesky/ophyd#783), some of our problems were likely due to use of a non-production release of ophyd.

To take advantage of various changes since the latest production release (1.3.3), we used 1.4.0rc3 (and then with additional modifications). The master branch of the ophyd repository is well past the 1.3.3 release but the additional changes are not fully tested.

We should re-install the 1.3.3 release locally, then apply any additional modifications locally to regain the changes we hoped to see from the 1.4.0rc3 release.

[prjemian]

Current ophyd version points to local development directory.

(bluesky) 8idiuser@snow ~/.../profile_bluesky/startup $ conda list ophyd
# packages in environment at /home/beams/8IDIUSER/.conda/envs/bluesky:
#
# Name                    Version                   Build  Channel
ophyd                     1.4.0rc3.post14+g3cbf73b           dev_0    <develop>
(bluesky) 8idiuser@snow ~/.../profile_bluesky/startup $ conda install ophyd=1.3.3 -c nsls2forge
Collecting package metadata (current_repodata.json): done
Solving environment: -
The environment is inconsistent, please check the package plan carefully
The following packages are causing the inconsistency:

  - aps-anl-tag/noarch::apstools==1.1.16=py_0                                                                                        done


==> WARNING: A newer version of conda exists. <==
  current version: 4.8.0
  latest version: 4.8.1

Please update conda by running

    $ conda update -n base -c defaults conda



## Package Plan ##

  environment location: /home/beams/8IDIUSER/.conda/envs/bluesky

  added / updated specs:
    - ophyd=1.3.3


The following NEW packages will be INSTALLED:

  ophyd              nsls2forge/noarch::ophyd-1.3.3-py_1

[prjemian]

Now, start bluesky session and look for startup problems.

(bluesky) 8idiuser@snow ~/.../profile_bluesky/startup $ bluesky8IDI
Python 3.7.3 (default, Mar 27 2019, 22:11:17)
Type 'copyright', 'credits' or 'license' for more information
IPython 7.6.0 -- An enhanced Interactive Python. Type '?' for help.

IPython profile: bluesky
/home/beams/8IDIUSER/.ipython-bluesky/profile_bluesky/startup/00-0-checks.py
BlueSky version: 1.5.4
Ophyd version: 1.3.3
/home/beams/8IDIUSER/.ipython-bluesky/profile_bluesky/startup/00-logging.py
Activating auto-logging. Current session state plus future input saved.
Filename       : /home/beams10/8IDIUSER/.ipython-bluesky/profile_bluesky/startup/.logs/ipython_console.log
Mode           : rotate
Output logging : True
...
~/.ipython-bluesky/profile_bluesky/startup/09-imports.py in <module>
     37 from ophyd.areadetector.plugins import PluginBase
     38 # new in ophyd 1.4.0rc1
---> 39 from ophyd.areadetector.plugins import GatherPlugin
     40 from ophyd.areadetector.plugins import ScatterPlugin
     41

ImportError: cannot import name 'GatherPlugin' from 'ophyd.areadetector.plugins' (/home/beams/8IDIUSER/.conda/envs/bluesky/lib/python3.7/site-packages/ophyd/areadetector/plugins.py)

In [1]:

[prjemian]

One local fix already implemented: FixScalerCH (includes: bluesky/ophyd#691, bluesky/ophyd#692, bluesky/ophyd#714) in 11-device-overrides.py

https://github.com/aps-8id-trr/ipython-8idiuser/blob/6cf01e21e08b7fd80d12c1659f7361be348d870f/profile_bluesky/startup/11-device-overrides.py#L27-L29

[prjemian]

Looks like the GatherPlugin is not necessary now since the code that calls it (from __25-areadetector-lambda.py__) is not loaded:

(bluesky) 8idiuser@snow ~/.../profile_bluesky/startup $ git grep GatherPlugin
09-imports.py:from ophyd.areadetector.plugins import GatherPlugin
__25-areadetector-lambda.py__:# class GatherPlugin(PluginBase):
__25-areadetector-lambda.py__:#     gather = Component(GatherPlugin, "Gather1:")

[prjemian]

The changes in ophyd to implement timeout and retry are fundamental to PV connections throughout the ophyd code (EpicsSignal, EpicsMotor, area detector) and would require massive duplication. Not the best place, or even a good place. Better to implement in an ophyd branch.

[prjemian]

@danielballan : Can you help with this ophyd branch?

Ophyd release 1.3.3 installed at beam line and bluesky session starts. This issue is done. Will open a new one once the new ophyd branch with timeout and retry are implemented.