Vim update plugins with errors

Question

Now i update my .vimrc in Mac Osx but i have the next errors:

Error detected while processing /Users/dmuino/.vimrc: line 59: E319: Sorry, the command is not available in this version: py << EOF line
60: E492: Not an editor command: import os line 61: E492: Not an editor command: import sys line 62: E15: Invalid expression: 'VIRTUAL_ENV' in os.environ: line 117: E171: Missing :endif

But i checked my .vimrc but i don't find any error in it, could you help me? My .vimrc is the next:

set nocompatible              " required
filetype off                  " required
 set runtimepath+=~/.vim_runtime
 source ~/.vim_runtime/vimrcs/basic.vim
 source ~/.vim_runtime/vimrcs/filetypes.vim
 source ~/.vim_runtime/vimrcs/plugins_config.vim
 source ~/.vim_runtime/vimrcs/extended.vim
 set rtp+=~/.vim/bundle/Vundle.vim
 set splitbelow
 set splitright
 call vundle#begin()
 "split navigations
 nnoremap <C-J> <C-W><C-J>
 nnoremap <C-K> <C-W><C-K>
 nnoremap <C-L> <C-W><C-L>
 nnoremap <C-H> <C-W><C-H>
 " Enable folding
 set foldmethod=indent
 set foldlevel=99
 " Enable folding with the spacebar
 nnoremap <space> za
 " alternatively, pass a path where Vundle should install plugins
 "call vundle#begin('~/some/path/here')

 " let Vundle manage Vundle, required
 Plugin 'gmarik/Vundle.vim'
 Plugin 'tmhedberg/SimpylFold'
 Helptags

 let g:SimplyFold_docstring_preview=1
 " PEP8 indetantion
 au BufNewFile,BufRead *.py
    \ set tabstop=4
    \ set softtabstop=4
    \ set shiftwidth=4
    \ set textwidth=79
    \ set expandtab
    \ set autoindent
    \ set fileformat=unix
 " HTML, JS, CSS indentation
 au BufNewfile,BufRead *.js, *.html, *.css
    \ set tabstop=2
    \ set softtabstop=2
    \ set shiftwidth=2
 "Fix problem indentation PEP8
 Plugin 'vim-scripts/indentpython.vim'
 "Uneccesary whitespace
 au BufRead,BufNewfile *.py,*.pyw,*.c,*.h match BadWhitespace /\s\+$/
 " UTF8 support
 set encoding=utf-8
 "Autocomplete
 Bundle 'Valloric/YouCompleteMe'

 let g:ymc_autoclose_preview_window_after_completion=1
 map <leader>g :YcmCompleter GoToDefinitionElseDeclaration<CR>

 " python with virtualenv support

 py << EOF
 import os
 import sys
 if 'VIRTUAL_ENV' in os.environ:
     project_base_dir = os.environ['VIRTUAL_ENV']
     activate_this = os.path.join(project_base_dir, 'bin/activate_this.py')
     execfile(activate_this, dict(__file__=activate_this))
 EOF

 " Syntax Checkin/Highlighting
 Plugin 'vim-syntastic/syntastic'
 Plugin 'nvie/vim-flake8'
 let python_highlight_all=1
 syntax on

 "Color Shemes
 Plugin 'jnurmin/Zenburn'
 Plugin 'altercation/vim-colors-solarized'
 if has('gui_running')
     set background=dark
     colorscheme solarized
 else
     colorscheme zenburn
 endif
 call togglebg#map("<F5>")
 "File Browsing
 Plugin 'scrooloose/nerdtree'
 Plugin 'jistr/vim-nerdtree-tabs'
 let NERDTreeIgnore=['\.pyc$','\~$'] "Ignore files in NERDTree

 "SuperSearching
 Plugin 'kien/ctrlp.vim'
 "Line numering
 set nu
 "Git integration
 Plugin 'tpope/vim-fugitive'

 "Powerline
 Plugin 'Lokaltog/powerline', {'rtp': 'powerline/bindings/vim/'}

 "System clipboard
 set clipboard=unnamed
 "VIM in the shell
 set editing-mode vi

 " add all your plugins here (note older versions of Vundle
 " used Bundle instead of Plugin)

 " ...

 " All of your Plugins must be added before the following line
 call vundle#end()            " required
 filetype plugin indent on    " required

try
source ~/.vim_runtime/my_configs.vim
catch
endtry

Answer 1

change

 " python with virtualenv support

 py << EOF

to

" python with virtualenv support
py3 3
py3 << EOF