patch 8.2.1538: Python: iteration over vim objects fails to keep reference Commit: https://github.com/vim/vim/commit/423a85a11a9d3d658906aea715fed7fe6aa83cd8 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 29 12:57:16 2020 +0200 patch 8.2.1538: Python: iteration over vim objects fails to keep reference Problem: Python: iteration over vim objects fails to keep reference. Solution: Keep a reference for the object. (Paul Ollis, closes https://github.com/vim/vim/issues/6803, closes #6806)

" Provide 'PrintVer' command to print the interface versions.

func s:print_ver(lang, ...)
  if has(a:lang)
    exec a:lang join(a:000)
  else
    echo 'N/A'
  endif
  echo ''
endfunc

command -nargs=+ PrintVer call <SID>print_ver(<f-args>)