py-jedi needs py-parso to work. Looking at the changelog the parso function was split off in v0.11.0 of jedi. Trying to use jedi without parso installed causes an error.
A commit references this bug: Author: skreuzer Date: Thu May 3 13:42:34 UTC 2018 New revision: 468928 URL: https://svnweb.freebsd.org/changeset/ports/468928 Log: Update to version 0.12.0 Add textproc/py-parso as a dependency PR: 227947 Reported by: hliebel@gmail.com Changes: head/devel/py-jedi/Makefile head/devel/py-jedi/distinfo
Thanks for the report! I added textproc/py-parso as a dependency and also updated the port to v0.12.0