Simple compiler for vim to fill python traceback in the quickfix window. Copy the file to `.vim/compiler/python.vim`.

compiler.python.vim

" https://vi.stackexchange.com/questions/5110/quickfix-support-for-python-tracebacks

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

let s:cpo_save = &cpo
set cpo&vim

CompilerSet errorformat=
      \%*\\sFile\ \"%f\"\\,\ line\ %l\\,\ %m,
      \%*\\sFile\ \"%f\"\\,\ line\ %l,
CompilerSet makeprg=python3\ %

let &cpo = s:cpo_save
unlet s:cpo_save