s3cmd version 2.0.1 was pushed to epel7 in issue#1533676 but el6 still has version 2.0.0. It sounds like s3cmd 2.0.1 improved compatibility with python 3 (as well as fixing some other issues). Would it be possible to get this version for el6 as well?
s3cmd-2.0.1-2.el6 has been submitted as an update to Fedora EPEL 6. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-20f029493b
s3cmd-2.0.1-2.el6 has been pushed to the Fedora EPEL 6 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-20f029493b
s3cmd-2.0.2-1.el7 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-956b62c280
s3cmd-2.0.2-1.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-aab24743c0
s3cmd-2.0.2-1.el7 has been pushed to the Fedora EPEL 7 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-956b62c280
s3cmd-2.0.2-1.fc28 has been pushed to the Fedora 28 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-aab24743c0
s3cmd-2.0.2-1.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.
s3cmd-2.0.2-1.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.
FEDORA-EPEL-2020-6cdd0d7446 has been submitted as an update to Fedora EPEL 6. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-6cdd0d7446
FEDORA-EPEL-2020-6cdd0d7446 has been pushed to the Fedora EPEL 6 testing repository. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-6cdd0d7446 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-EPEL-2020-6cdd0d7446 has been pushed to the Fedora EPEL 6 stable repository. If problem still persists, please make note of it in this bug report.