patch 8.2.1821: Vim9: concatenating to a NULL list doesn't work Commit: https://github.com/vim/vim/commit/1a73923705744ab8297dd856d194e20297563456 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Oct 10 15:37:58 2020 +0200 patch 8.2.1821: Vim9: concatenating to a NULL list doesn't work Problem: Vim9: concatenating to a NULL list doesn't work. Solution: Handle a NULL list like an empty list. (closes https://github.com/vim/vim/issues/7064)

" 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