This seems to be output from vim-flake8 plugin. You probably need to uninstall or disable the plugin, or remove autocommand that runs flake8 on saving Python file.
I cannot give more detailed answer — I need to see your .vimrc and perhaps the content of .vim directory.
If you don't want to disable vim-flake8 but only want to get rid of its output on exit — add this to your .vimrc:
" automatically close quickfix if it's the only window left"
autocmd WinEnter * if winnr('$') == 1 && &buftype == "quickfix" | quit | endif
This seems to be output from
vim-flake8plugin. You probably need to uninstall or disable the plugin, or remove autocommand that runsflake8on saving Python file.I cannot give more detailed answer — I need to see your
.vimrcand perhaps the content of.vimdirectory.If you don't want to disable
vim-flake8but only want to get rid of its output on exit — add this to your.vimrc: