patch 8.1.1679: test using SwapExists autocommand file may fail commit https://github.com/vim/vim/commit/eaa49e40d7e7f84deef14424c84ef1da0796fa58 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jul 13 18:08:59 2019 +0200 patch 8.1.1679: test using SwapExists autocommand file may fail Problem: Test using SwapExists autocommand file may fail. Solution: Remove the SwapExists autocommand.

" Vim compiler file
" Compiler:	Unit testing tool for Python
" Maintainer:	Max Ischenko <mfi@ukr.net>
" Last Change: 2004 Mar 27

if exists("current_compiler")
  finish
endif
let current_compiler = "pyunit"

if exists(":CompilerSet") != 2		" older Vim always used :setlocal
  command -nargs=* CompilerSet setlocal <args>
endif

CompilerSet efm=%C\ %.%#,%A\ \ File\ \"%f\"\\,\ line\ %l%.%#,%Z%[%^\ ]%\\@=%m