My solution was as follows: 0 - observed that hplip-uninstall failed (c.f.https://bugs.launchpad.net/hplip/+bug/2008635 for details); great anxiety ensued; notes say "Total WAG experiment:" and then the following actions 1 - [Synaptic] install hplip (version 3.21.12+dfsg0-1) (also installs: hplip-data, lib{hpmud0,sane-hpaio}, printer-driver-{hpcups,postscript-hp}, python3-{notify2,renderpm,reportlab,reportlab-accel}), hplip-doc, hplip-gui (also installs: python3-dbus.mainloop.pyqt5) -- note that after this installation, hp-info "works" (i.e. it doesn't crash immediately as in the bug report) and interacts appropriately with the printer (HP2734E) 2 - Found other files in /usr/share/hplip that the Jan 27 debacle installed, apparently by pip, so uninstalled them: $ sudo bash # for m in cffi charset-normalizer coloredlogs cryptography deprecation humanfriendly imageio img2pdf imutils networkx ocrmypdf opencv-python pdfminer.six pikepdf pluggy pycparser PyPDF2 PyWavelets scikit-image tesserocr tifffile tqdm pip; do pip uninstall $m; done 3 - [Synaptic] re-install python3-cryptography
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to openssl in Ubuntu. https://bugs.launchpad.net/bugs/2004477 Title: cryptography pkg 39.0.0 incompatible with pyOpenSSL 21.0.0 - crashes ensue Status in openssl package in Ubuntu: Invalid Bug description: crypto.py crashes when starting protonvpn: $ protonvpn-cli connect SE1 Tue Jan 31 07:08:04 AM EST 2023 Traceback (most recent call last): File "/usr/bin/protonvpn-cli", line 11, in <module> load_entry_point('protonvpn-cli==3.13.0', 'console_scripts', 'protonvpn-cli')() File "/usr/lib/python3/dist-packages/protonvpn_cli/main.py", line 20, in main from .cli import ProtonVPNCLI File "/usr/lib/python3/dist-packages/protonvpn_cli/cli.py", line 4, in <module> from proton.constants import VERSION as proton_version File "/usr/lib/python3/dist-packages/proton/__init__.py", line 1, in <module> from .api import Session # noqa File "/usr/lib/python3/dist-packages/proton/api.py", line 21, in <module> from .cert_pinning import TLSPinningAdapter File "/usr/lib/python3/dist-packages/proton/cert_pinning.py", line 5, in <module> from OpenSSL import crypto File "/usr/lib/python3/dist-packages/OpenSSL/__init__.py", line 8, in <module> from OpenSSL import crypto, SSL File "/usr/lib/python3/dist-packages/OpenSSL/crypto.py", line 3279, in <module> _lib.OpenSSL_add_all_algorithms() AttributeError: module 'lib' has no attribute 'OpenSSL_add_all_algorithms' Tue Jan 31 07:08:05 AM EST 2023 c.f. https://askubuntu.com/questions/1450578/couldnt-launch-proton-vpn but downgrading openssl package is not desirable for security reasons. per https://github.com/pyca/cryptography/issues/7959 and other hits on search, cryptography package 39.0.0 is incompatible with pyOpenSSL 21.0.0; cryptography 38.0.4 works with 21.0.0; cryptography 39.0.0 requires 22.1.0 or greater. Installed packages are python3-cryptography 3.4.8-1ubuntu2 and 21.0.0-1 python3-openssl Currently, python3-openssl 22.1.0 is not available from repo. $ lsb_release -rd: Description: Ubuntu 22.04.1 LTS Release: 22.04 $ apt-cache policy python3-openssl python3-openssl: Installed: 21.0.0-1 Candidate: 21.0.0-1 Version table: *** 21.0.0-1 500 500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages 500 http://archive.ubuntu.com/ubuntu jammy/main i386 Packages 100 /var/lib/dpkg/status $ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/2004477/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
