I'll try a fresh build using apt-get, but it's important to note that this is an issue with python imports, not mnemosyne itself. In fact, I was able to fix the import issue by rolling back the version of PyQt5 and PyQtWebEngine to an arbitrary earlier build.
I'm now able to launch Mnemosyne (and don't hate me but I downloaded Anki as a second option, which was also failing thanks to the errors while importing - but it's now working), so I actually don't need reinstall anything. If anyone runs into this issue in the future, here are the versions of PyQt5 and QtWebEngine that are working: PyQt5 5.12 PyQt5-sip 12.8.1 PyQtWebEngine 5.12 I'm sorry if this was the wrong forum to post to, I didn't know in the beginning that it was an issue with Qt, and not Mnemosyne. However, I'm now able to get my cards back up and running again, so cheers!!!! Feel free to close the forum as my issue has been resolved. Ejovo On Sunday, January 31, 2021 at 5:56:49 PM UTC+1 Bithov Vinu wrote: > I find that error only comes up when installing from source. Remove > Mnemosyne using dpkg and install it using apt-get. > > On Sun, 31 Jan 2021, 16:08 Peter Bienstman, <[email protected]> wrote: > >> Hi, >> >> Alternatively you could also try asking on a Linux Mint forum on how to >> install Pyqt if the standard 'pip install PyQt5' does not work. >> >> Cheers, >> >> Peter >> >> >> On Sun, 31 Jan 2021, 17:05 'ejovo' via mnemosyne-proj-users, < >> [email protected]> wrote: >> >>> Hey guys, I recently switched to linux and wanted to get mnemosyne up >>> and running on my new machine. However, when I try to run mnemosyne, I'm >>> running into an error with PyQt. I've already installed the dependencies >>> that are specified in the readme file, and I've tried exporting my >>> LD_LIBRARY_PATH where the PyQt module gets installed. Still haven't had any >>> luck. I unfortunately don't have a lot of experience with Python so I don't >>> know how to hack a solution, but here is the error messages that I get: >>> >>> Log body: >>> An unexpected error has occurred. >>> Please forward the following info to the developers: >>> >>> Traceback (innermost last): >>> File "/usr/local/bin/mnemosyne", line 4, in <module> >>> __import__('pkg_resources').run_script('Mnemosyne==2.7.3', >>> 'mnemosyne') >>> File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line >>> 667, in run_script >>> self.require(requires)[0].run_script(script_name, ns) >>> File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line >>> 1463, in run_script >>> exec(code, namespace, namespace) >>> File >>> "/usr/local/lib/python3.8/dist-packages/Mnemosyne-2.7.3-py3.8.egg/EGG-INFO/scripts/mnemosyne", >>> >>> line 150, in <module> >>> from PyQt5 import QtWebEngineWidgets # Needs to happen first for >>> some reason. >>> ImportError: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: version >>> `Qt_5.15' not found (required by >>> /home/ejovo13/.local/lib/python3.8/site-packages/PyQt5/QtCore.abi3.so) >>> >>> An unexpected error has occurred. >>> Please forward the following info to the developers: >>> >>> Traceback (innermost last): >>> File "/usr/local/bin/mnemosyne", line 4, in <module> >>> __import__('pkg_resources').run_script('Mnemosyne==2.7.3', >>> 'mnemosyne') >>> File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line >>> 667, in run_script >>> self.require(requires)[0].run_script(script_name, ns) >>> File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line >>> 1463, in run_script >>> exec(code, namespace, namespace) >>> File >>> "/usr/local/lib/python3.8/dist-packages/Mnemosyne-2.7.3-py3.8.egg/EGG-INFO/scripts/mnemosyne", >>> >>> line 150, in <module> >>> from PyQt5 import QtWebEngineWidgets # Needs to happen first for >>> some reason. >>> ImportError: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: version >>> `Qt_5.15' not found (required by >>> /home/ejovo13/.local/lib/python3.8/site-packages/PyQt5/QtCore.abi3.so) >>> An unexpected error has occurred. >>> Please forward the following info to the developers: >>> >>> Traceback (innermost last): >>> File "/usr/local/bin/mnemosyne", line 4, in <module> >>> __import__('pkg_resources').run_script('Mnemosyne==2.7.3', >>> 'mnemosyne') >>> File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line >>> 667, in run_script >>> self.require(requires)[0].run_script(script_name, ns) >>> File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line >>> 1463, in run_script >>> exec(code, namespace, namespace) >>> File >>> "/usr/local/lib/python3.8/dist-packages/Mnemosyne-2.7.3-py3.8.egg/EGG-INFO/scripts/mnemosyne", >>> >>> line 150, in <module> >>> from PyQt5 import QtWebEngineWidgets # Needs to happen first for >>> some reason. >>> ImportError: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: version >>> `Qt_5.15' not found (required by >>> /home/ejovo13/.local/lib/python3.8/site-packages/PyQt5/QtCore.abi3.so) >>> >>> If any Linux power users who are experienced with Python could suggest >>> some possible approaches, I'd be more than happy. >>> >>> Cheers, >>> ejovo >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "mnemosyne-proj-users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/mnemosyne-proj-users/0bcf3772-7b7b-4d95-a049-0c7e91bbea13n%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/mnemosyne-proj-users/0bcf3772-7b7b-4d95-a049-0c7e91bbea13n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "mnemosyne-proj-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> > To view this discussion on the web visit >> https://groups.google.com/d/msgid/mnemosyne-proj-users/CAMdxoPG8NHBSUe4bzmf%3D8Lqo1Cuw%3DhHZfjLdfonxr0k-AWgFCQ%40mail.gmail.com >> >> <https://groups.google.com/d/msgid/mnemosyne-proj-users/CAMdxoPG8NHBSUe4bzmf%3D8Lqo1Cuw%3DhHZfjLdfonxr0k-AWgFCQ%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > > Student Account > Calday Grange Grammar School is a charitable company limited by guarantee > and registered in England and Wales with company number 8332696. > The Registered Office is at Grammar School Lane, West Kirby, Wirral, CH48 > 8GG -- You received this message because you are subscribed to the Google Groups "mnemosyne-proj-users" group. 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