patch 8.2.1259: empty group in 'tabline' may cause using an invalid pointer Commit: https://github.com/vim/vim/commit/f56c95fdad5af521887f8cd7bc15729b5355231d Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jul 21 19:25:18 2020 +0200 patch 8.2.1259: empty group in 'tabline' may cause using an invalid pointer Problem: Empty group in 'tabline' may cause using an invalid pointer. Solution: Set the group start position. (closes https://github.com/vim/vim/issues/6505)

" Print py3 interface versions for Ubuntu. Part 2.

if 1
  execute 'source' expand('<sfile>:h') .. '/if_ver-cmd.vim'

  echo 'Python 3:'
  PrintVer python3 print(sys.version)
endif