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<== Date ==> <== Thread ==>
Subject: Quickstart Error trying P4P
From: Matt Rippa via Tech-talk <tech-talk at aps.anl.gov>
To: Talk EPICS Tech <tech-talk at aps.anl.gov>
Date: Tue, 31 Jan 2023 23:59:37 -1000
Hi folks,

I'm starting to look at p4p and following this guide https://mdavidsaver.github.io/p4p/starting.html#starting.

I'm running into this error.
ImportError: libpvxs.so.1.1: cannot open shared object file: No such file or directory

pip show pvxslibs 
shows it's installed.  Full output below. 

But further inspection looks like only the info directory is installed.
(p4ptest) [mrippa@localhost p4p2]$ ls -ltra /home/mrippa/work/p4p2/p4ptest/lib64/python3.11/site-packages
total 40
drwxr-xr-x.  3 mrippa mrippa 4096 Jan 31 23:19 ..
drwxr-xr-x.  2 mrippa mrippa 4096 Jan 31 23:29 numpy.libs
drwxr-xr-x. 21 mrippa mrippa 4096 Jan 31 23:29 numpy
drwxr-xr-x.  2 mrippa mrippa 4096 Jan 31 23:29 numpy-1.24.1.dist-info
drwxr-xr-x.  9 mrippa mrippa 4096 Jan 31 23:29 epicscorelibs
drwxr-xr-x.  2 mrippa mrippa 4096 Jan 31 23:29 epicscorelibs-7.0.7.99.0.0.dist-info
drwxr-xr-x.  2 mrippa mrippa 4096 Jan 31 23:29 pvxslibs-1.1.1.dist-info
drwxr-xr-x. 10 mrippa mrippa 4096 Jan 31 23:44 .
drwxr-xr-x.  8 mrippa mrippa 4096 Jan 31 23:44 p4p
drwxr-xr-x.  2 mrippa mrippa 4096 Jan 31 23:44 p4p-4.1.5.dist-info

I tried to uninstall and reinstall with the same result.
Tried on Fedora 37 and Rocky8 with the same result.

$ uname -a
Linux localhost.localdomain 6.1.8-200.fc37.x86_64 #1 SMP PREEMPT_DYNAMIC Tue Jan 24 20:32:16 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
$ python -V
Python 3.11.1

Thanks for any insight!
-Matt

(p4ptest) [mrippa@localhost p4p2]$ python -m pip install -U p4p nose2
Requirement already satisfied: p4p in ./p4ptest/lib64/python3.11/site-packages (4.1.5)
Requirement already satisfied: nose2 in ./p4ptest/lib/python3.11/site-packages (0.12.0)
Requirement already satisfied: epicscorelibs<7.0.7.99.1,>=7.0.7.99.0.0 in ./p4ptest/lib64/python3.11/site-packages (from p4p) (7.0.7.99.0.0)
Requirement already satisfied: pvxslibs<1.2.0a1,>=1.1.1 in ./p4ptest/lib64/python3.11/site-packages (from p4p) (1.1.1)
Requirement already satisfied: numpy>=1.24.1 in ./p4ptest/lib64/python3.11/site-packages (from p4p) (1.24.1)
Requirement already satisfied: ply in ./p4ptest/lib/python3.11/site-packages (from p4p) (3.11)
Requirement already satisfied: setuptools in ./p4ptest/lib/python3.11/site-packages (from epicscorelibs<7.0.7.99.1,>=7.0.7.99.0.0->p4p) (65.6.3)
Requirement already satisfied: setuptools-dso>=2.0a1 in ./p4ptest/lib/python3.11/site-packages (from epicscorelibs<7.0.7.99.1,>=7.0.7.99.0.0->p4p) (2.6)


(p4ptest) [mrippa@localhost p4p2]$ python -m nose2 p4p
E
======================================================================
ERROR: p4p (nose2.loader.LoadTestsFailure.p4p)
----------------------------------------------------------------------
Traceback (most recent call last):
 File "/home/mrippa/work/p4p2/p4ptest/lib/python3.11/site-packages/nose2/_vendor/six.py", line 719, in reraise
   raise value
 File "/home/mrippa/work/p4p2/p4ptest/lib/python3.11/site-packages/nose2/plugins/loader/functions.py", line 81, in loadTestsFromName
   result = util.test_from_name(name, module)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/home/mrippa/work/p4p2/p4ptest/lib/python3.11/site-packages/nose2/util.py", line 92, in test_from_name
   parent, obj = object_from_name(name, module)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/home/mrippa/work/p4p2/p4ptest/lib/python3.11/site-packages/nose2/util.py", line 112, in object_from_name
   (module, import_error) = try_import_module_from_name(parts[:])
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/home/mrippa/work/p4p2/p4ptest/lib/python3.11/site-packages/nose2/util.py", line 171, in try_import_module_from_name
   six.reraise(*import_error)
 File "/home/mrippa/work/p4p2/p4ptest/lib/python3.11/site-packages/nose2/_vendor/six.py", line 719, in reraise
   raise value
 File "/home/mrippa/work/p4p2/p4ptest/lib/python3.11/site-packages/nose2/util.py", line 165, in try_import_module_from_name
   module = __import__(".".join(splitted_name))
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/home/mrippa/work/p4p2/p4ptest/lib64/python3.11/site-packages/p4p/__init__.py", line 14, in <module>
   from .wrapper import Value, Type
 File "/home/mrippa/work/p4p2/p4ptest/lib64/python3.11/site-packages/p4p/wrapper.py", line 5, in <module>
   from . import _p4p
ImportError: libpvxs.so.1.1: cannot open shared object file: No such file or directory

----------------------------------------------------------------------
Ran 1 test in 0.000s

FAILED (errors=1)

(p4ptest) [mrippa@localhost p4p2]$ pip show pvxslibs
Name: pvxslibs
Version: 1.1.1
Summary: PVXS libraries packaged for python
Home-page: https://mdavidsaver.github.io/pvxs
Author: Michael Davidsaver
Author-email: mdavidsaver at gmail.com
License: BSD
Location: /home/mrippa/work/p4p2/p4ptest/lib64/python3.11/site-packages
Requires: epicscorelibs, setuptools-dso
Required-by: p4p


(p4ptest) [mrippa@localhost p4p2]$ python -m p4p.server.cli my:pv:name=int
Traceback (most recent call last):
 File "<frozen runpy>", line 189, in _run_module_as_main
 File "<frozen runpy>", line 112, in _get_module_details
 File "/home/mrippa/work/p4p2/p4ptest/lib64/python3.11/site-packages/p4p/__init__.py", line 14, in <module>
   from .wrapper import Value, Type
 File "/home/mrippa/work/p4p2/p4ptest/lib64/python3.11/site-packages/p4p/wrapper.py", line 5, in <module>
   from . import _p4p
ImportError: libpvxs.so.1.1: cannot open shared object file: No such file or directory

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Re: Quickstart Error trying P4P Michael Davidsaver via Tech-talk
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