===> Installing existing package /packages/All/py36-igraph-0.7.0.txz Installing py36-igraph-0.7.0... pkg-static: py36-igraph-0.7.0 conflicts with py27-igraph-0.7.0 (installs files into the same place). Problematic file: /usr/local/bin/igraph It seems that it can be easily resolved by adding 'USE_PYTHON=concurrent'.
Created attachment 189315 [details] Patch to fix the conflict
A commit references this bug: Author: lwhsu Date: Fri Jan 12 09:54:16 UTC 2018 New revision: 458813 URL: https://svnweb.freebsd.org/changeset/ports/458813 Log: - Set USE_PYTHON+=concurrent to enable multiple flavors coexist PR: 224811 submitted by: ting-wei lan <lantw44@gmail.com> Changes: head/math/py-igraph/Makefile