Paul Banks created PROTON-2518:
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Summary: Installing Python bindings via pip in a venv causes an
ImportError
Key: PROTON-2518
URL: https://issues.apache.org/jira/browse/PROTON-2518
Project: Qpid Proton
Issue Type: Bug
Components: python-binding
Affects Versions: proton-c-0.36.0
Environment: CentOS 7
Python 3.8.12 (Anaconda 4.11.0)
Using a standard venv within that. That is I created a python virtual
environment inside an anaconda environment. (Not my choice but if it makes a
difference I've run into the same issue without it)
Reporter: Paul Banks
When attempting to use the QPid Proton libraries by installing the
`python-qpid-proton` package in pip an ImportError appears related to the
_cproton shared object.
I was able to recreate it with a python 3.6.8 virtual environment. The error is
the same in my python 3.8.12 environment. I am attempting to run one of the
provided examples.
{code:java}
Traceback (most recent call last):
File
"/export/home/pbanks/Downloads/qpid-proton-0.36.0/python/examples/simple_recv.py",
line 22, in <module>
from proton.handlers import MessagingHandler
File
"/export/home/pbanks/anaconda3/envs/testEnviron/lib/python3.6/site-packages/proton/__init__.py",
line 35, in <module>
from cproton import PN_VERSION_MAJOR, PN_VERSION_MINOR, PN_VERSION_POINT
File
"/export/home/pbanks/anaconda3/envs/testEnviron/lib/python3.6/site-packages/cproton.py",
line 15, in <module>
import _cproton
ImportError:
/export/home/pbanks/anaconda3/envs/testEnviron/lib/python3.6/site-packages/_cproton.cpython-36m-x86_64-linux-gnu.so:
undefined symbol: CRYPTO_set_locking_callback{code}
Normally in CentOS7 I would use the Fedora provided yum package
`python36-qpid-proton` as that works without issue.
My current workaround is to replace the shared object provided by the pip
package with the yum package.
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