Vim settings for Python source files

Put the code below into ~/.vimrc:

" detect file encoding (I'm using utf-8 for new sources while old ones in cp1251)
set fileencodings=ucs-bom,utf-8,cp1251,default,latin1
" apply settings from .vim/indent/ and .vim/ftplugin/ directories
filetype indent plugin on

And this should be in ~/.vim/ftplugin/python.vim:

setlocal foldmethod=indent
setlocal tabstop=4
setlocal softtabstop=4
setlocal shiftwidth=4
setlocal textwidth=79
setlocal expandtab
setlocal autoindent
setlocal nowrap
setlocal formatoptions+=c
setlocal formatoptions+=r
" Use the below highlight group when displaying bad whitespace is desired
highlight BadWhitespace ctermbg=red guibg=red
" Display tabs at the beginning of a line in Python mode as bad.
match BadWhitespace /^\t\+/
" Make trailing whitespace be flagged as bad.
match BadWhitespace /\s\+$/