| Summary: |
python3-qt5: dbus.mainloop.pyqt5 fails to import (causes issues with Cadence from Multimedia:apps) |
| Product: |
[openSUSE] openSUSE Tumbleweed
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Reporter: |
Marc Joliet <marcec> |
| Component: |
Other | Assignee: |
E-mail List <bnc-team-screening> |
| Status: |
RESOLVED
DUPLICATE
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QA Contact: |
E-mail List <qa-bugs> |
| Severity: |
Normal
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| Priority: |
P5 - None
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CC: |
wbauer
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| Version: |
Current | |
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| Target Milestone: |
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| Hardware: |
x86-64 | |
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| OS: |
Linux | |
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| Whiteboard: |
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Found By:
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Services Priority:
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Business Priority:
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Blocker:
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Marketing QA Status:
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IT Deployment:
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I use Cadence from Multimedia:apps for managing JACK. This used to work up to November 2019, but I recently tried it again and it complains that dbus is not available (which is nonsense). It turns out that the way it tests this is via a try/except block: try: import dbus from dbus.mainloop.pyqt5 import DBusQtMainLoop haveDBus = True except: haveDBus = False the "from ... import ..." line is what fails and causes the error message I see. The bizarre thing is that that module is installed: % rpm --query --list python3-qt5 | grep -i mainloop /usr/lib64/python3.7/site-packages/dbus/mainloop /usr/lib64/python3.7/site-packages/dbus/mainloop/pyqt5.so If I run python3 myself, I can successfully import dbus and dbus.mainloop, but not dbus.mainloop.pyqt5: % python3 Python 3.7.3 (default, Apr 09 2019, 05:18:21) [GCC] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import dbus >>> import dbus.mainloop >>> import dbus.mainloop.pyqt5 Traceback (most recent call last): File "<stdin>", line 1, in <module> ModuleNotFoundError: No module named 'dbus.mainloop.pyqt5' >>> And here I am stumped. I don't know enough about how Python loads C extension modules to be able to debug this further. At least it's not something trivial like a missing symbol... Seems this is a problem on other distros, too: https://stackoverflow.com/questions/56462559/no-module-named-dbus-mainloop-pyqt5-even-if-all-dependencies-seem-to-be-instal. However, on my Gentoo desktop it works fine: % python3 Python 3.6.9 (default, Oct 12 2019, 14:38:00) [GCC 8.3.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import dbus.mainloop.pyqt5 >>> Some system info: % cat /etc/os-release NAME="openSUSE Tumbleweed" # VERSION="20200218" ID="opensuse-tumbleweed" ID_LIKE="opensuse suse" VERSION_ID="20200218" PRETTY_NAME="openSUSE Tumbleweed" ANSI_COLOR="0;32" CPE_NAME="cpe:/o:opensuse:tumbleweed:20200218" BUG_REPORT_URL="https://bugs.opensuse.org" HOME_URL="https://www.opensuse.org/" LOGO="distributor-logo" % env LANG=C zypper info python3-qt5 Loading repository data... Reading installed packages... Information for package python3-qt5: ------------------------------------ Repository : openSUSE-Tumbleweed-Oss Name : python3-qt5 Version : 5.13.2-2.2 Arch : x86_64 Vendor : openSUSE Installed Size : 22.7 MiB Installed : Yes (automatically) Status : up-to-date Source package : python3-qt5-5.13.2-2.2.src Summary : Python bindings for Qt 5 Description : PyQt is a set of Python bindings for the Qt framework. The version of PyQt5 on my Gentoo system is the same (5.13.2), but as can be seen above, I'm still on Python 3.6 there.