Just FTR current numbers about packages which requires python3 vs python2:

# dnf repoquery -C --whatrequires python3| grep -cv i686; dnf repoquery -C --whatrequires python2| grep -cv i686

Last metadata expiration check: 0:59:03 ago on Mon 10 Sep 2018 18:23:45 BST.

3034

Last metadata expiration check: 0:59:09 ago on Mon 10 Sep 2018 18:23:45 BST.

3415