Hi all, I'm cleaning up Python 2 codepath now and find that VCF IO codes still remain though they might not work properly with latest Beam because they depend on PyVCF which does not support Python 3. According to comments in vcfio.py, migrating to Nucleus is expected, but it is concluded that the plan is not the right option at the comment of https://issues.apache.org/jira/browse/BEAM-5628
Now, it would be needed to decide which should we do for VCF IO - drop support or maintain support using another vcf package. Would anyone have a basis for the decision? Yoshiki
