pyqt5 in virtualenv "Cannot mix incompatible Qt library" error
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I have to deploy an application based on pyqt5. My setup requires everything to be done inside a python3 virtualenv.
It is obvious from the logs that I have two versions of pyqt5. One that comes default with my ubuntu-18.04 installation and one that I setup in the virtualenv. And they are picking files from both the versions, which is creating conflicts.
How do I make my system use only pyqt5 files from the virtualenv and not the system's installation ?
b-ak@ideapad-330S ~/Coder/venv_0.2.0/lib/python3.6/site-packages/PyQt5/Qt/plugins [009f9b6 *] ± % dpkg -al | grep libqt !5014 ii libqt5core5a:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 core module ii libqt5dbus5:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 D-Bus module ii libqt5gui5:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 GUI module ii libqt5help5:amd64 5.9.5-0ubuntu1 amd64 Qt 5 help module ii libqt5network5:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 network module ii libqt5sql5:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 SQL module ii libqt5sql5-sqlite:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 SQLite 3 database driver ii libqt5svg5:amd64 5.9.5-0ubuntu1 amd64 Qt 5 SVG module ii libqt5widgets5:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 widgets module ii libqt5x11extras5:amd64 5.9.5-0ubuntu1 amd64 Qt 5 X11 extras (venv_0.2.0) b-ak@ideapad-330S ~/Coder/venv_0.2.0/lib/python3.6/site-packages/PyQt5/Qt/plugins [009f9b6 *] ± % pip3 install pyqt5 Requirement already satisfied: pyqt5 in /home/b-ak/Coder/venv_0.2.0/lib/python3.6/site-packages (5.11.2) Requirement already satisfied: PyQt5_sip<4.20,>=4.19.11 in /home/b-ak/Coder/venv_0.2.0/lib/python3.6/site-packages (from pyqt5) (4.19.12) (venv_0.2.0) b-ak@ideapad-330S ~/Coder/venv_0.2.0/lib/python3.6/site-packages/PyQt5/Qt/plugins [009f9b6 *] ± % python3 audio_gui.py Cannot mix incompatible Qt library (version 0x50905) with this library (version 0x50b01) [1] 10863 abort python3 audio_gui.py (venv_0.2.0) ± % -
I have to deploy an application based on pyqt5. My setup requires everything to be done inside a python3 virtualenv.
It is obvious from the logs that I have two versions of pyqt5. One that comes default with my ubuntu-18.04 installation and one that I setup in the virtualenv. And they are picking files from both the versions, which is creating conflicts.
How do I make my system use only pyqt5 files from the virtualenv and not the system's installation ?
b-ak@ideapad-330S ~/Coder/venv_0.2.0/lib/python3.6/site-packages/PyQt5/Qt/plugins [009f9b6 *] ± % dpkg -al | grep libqt !5014 ii libqt5core5a:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 core module ii libqt5dbus5:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 D-Bus module ii libqt5gui5:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 GUI module ii libqt5help5:amd64 5.9.5-0ubuntu1 amd64 Qt 5 help module ii libqt5network5:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 network module ii libqt5sql5:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 SQL module ii libqt5sql5-sqlite:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 SQLite 3 database driver ii libqt5svg5:amd64 5.9.5-0ubuntu1 amd64 Qt 5 SVG module ii libqt5widgets5:amd64 5.9.5+dfsg-0ubuntu1 amd64 Qt 5 widgets module ii libqt5x11extras5:amd64 5.9.5-0ubuntu1 amd64 Qt 5 X11 extras (venv_0.2.0) b-ak@ideapad-330S ~/Coder/venv_0.2.0/lib/python3.6/site-packages/PyQt5/Qt/plugins [009f9b6 *] ± % pip3 install pyqt5 Requirement already satisfied: pyqt5 in /home/b-ak/Coder/venv_0.2.0/lib/python3.6/site-packages (5.11.2) Requirement already satisfied: PyQt5_sip<4.20,>=4.19.11 in /home/b-ak/Coder/venv_0.2.0/lib/python3.6/site-packages (from pyqt5) (4.19.12) (venv_0.2.0) b-ak@ideapad-330S ~/Coder/venv_0.2.0/lib/python3.6/site-packages/PyQt5/Qt/plugins [009f9b6 *] ± % python3 audio_gui.py Cannot mix incompatible Qt library (version 0x50905) with this library (version 0x50b01) [1] 10863 abort python3 audio_gui.py (venv_0.2.0) ± %@b-ak
This being a very PyQt question, like my https://forum.qt.io/post/482841 if you do not get a solution here try joining the "PyQt mailing list" (https://riverbankcomputing.com/mailman/listinfo/pyqt or similar) and ask there. And btw I found hassle with virtualenvs and stuck with Ubuntu distribution, though I realise you probably cannot afford this simplification.
