python vim specifics

python.vim

setlocal tabstop=4
" column highlight for pep8; thou shall not pass 79 columns
highlight ColorColumn ctermbg=090
let &colorcolumn=join(range(80,80),",")

" set text width, tabs, and other goodies for Python
setlocal softtabstop=4
setlocal shiftwidth=4
setlocal textwidth=79
setlocal smarttab
setlocal expandtab

"execute Python from within: F11 for Py3 / F12 for Py2
nnoremap <buffer> <F12> :exec '!python' shellescape(@%, 1)<cr>
nnoremap <buffer> <F11> :exec '!python3' shellescape(@%, 1)<cr>