Created attachment 211526 [details] patch Attached patch adds B2 option (enabled by default same as the other backends). Tested and working with Python 3.7 on FreeBSD 12.1-RELEASE.
Thanks Henry. I'll test and commit in a few days.
A commit references this bug: Author: dbaio Date: Thu Feb 13 23:02:52 UTC 2020 New revision: 526073 URL: https://svnweb.freebsd.org/changeset/ports/526073 Log: sysutils/duplicity-devel: Add Backblaze B2 support PR: 244013 Submitted by: PopularMoment@protonmail.com Changes: head/sysutils/duplicity-devel/Makefile
Committed, thanks!