[PyQt] Installing PyQt5 on CentOS using Wheels

[Phil Thompson]

On 19 Jul 2017, at 12:05 am, James Stearns - NOAA Affiliate <james.stearns at noaa.gov> wrote:
> 
> I have a PyQt5 application running on Windows that I'd like to get running on CentOS 6 as well. I'd prefer to install from wheels rather than source, as described in Installing PyQt5 . When I do so, and attempt to run, I get this error:
> 
> ImportError: /lib64/libc.so.6: version `GLIBC_2.14' not found (required by /home/jsnoaa/pyqt5-framdata/virtualenv/centos_pyqt5_framdata/lib/python3.6/site-packages/PyQt5/QtCore.so)
> 
> My read of the error: QtCore.so is expecting a /lib64/libc-2.14.so or later, but /lib64/libc.so.6 on CentOS 6.9 is linked to /lib64/libc-2.12.so.
> 
> Environment:
> 	• CentOS release 6.9 (Final) (2.6.32-696.6.3.el6.x86_64)
> 	• Python 3.6.1 (wget http://python.org/ftp/python/3.6.1/Python-3.6.1.tar.xz)
> 	• PyQt5 5.9 (pip3.6 PyQt5==5.9)
> I read with interest How to Install Qt 5 and Qwt on CentOS 6. Is this note saying that one must install PyQt5 onto CentOS 6 by compilation, not from wheels?

The wheels are built with the same versions as used to build the Qt installers. For current versions that means RHEL 7.2. Older versions are still supported (I think) but you must build them yourself.

Phil