Looks like you forgot to merge the latest updates into f33: https://src.fedoraproject.org/rpms/python-httpx/commits/master
FEDORA-2020-440d19f0f7 has been submitted as an update to Fedora 33. https://bodhi.fedoraproject.org/updates/FEDORA-2020-440d19f0f7
Thanks
FEDORA-2020-440d19f0f7 has been pushed to the Fedora 33 testing repository. In short time you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2020-440d19f0f7` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-440d19f0f7 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2020-440d19f0f7 has been pushed to the Fedora 33 stable repository. If problem still persists, please make note of it in this bug report.