running python on vim - vim

Question

Over on askubuntu.com I was told how to run python on Vim. I am testing the set up which works with the code 1st or 2nd code python code at using python to solve a non linear equation.
The only thing I have done different was added print(a) as the last line. I ran this yesterday from the shell and it worked perfectly. Could someone let me know what is going wrong?
Ok so I corrected the vimrc with the appropriate question marks,
chmod +x ~/path/to/file/hw6problem2.py
Then from vim I ran
:Shell ./#
but I received the same syntax error again. (Does the file have to be saved as .sh because I can't get any .py files to run?)
dustin#dustin:~$ vim /home/dustin/Documents/School/UVM/Engineering/OrbitalMechanics/hw6problem2.py
File "hw6problem2.py", line 14
a0 = max(s/2, (s - c)/2)
^
SyntaxError: invalid syntax
shell returned 1
Press ENTER or type command to continue
vimrc
syntax on
au BufWinLeave * mkview "records settings
au BufWinEnter * silent loadview "reloads settings
set nu "puts line numbers on
set ic "case insensitive
set foldmethod=syntax "for the latex-suite
set autoread "autoload when files in the buffer have been modified
set autochdir "autochange directory
"set wrap
set wrap
" set lines=50 columns=80
" resizes window
:map g1 :set lines=20<CR>:set columns=80<CR>
:map g2 :set lines=50<CR>:set columns=80<CR>
:map g3 :set lines=50<CR>:set columns=170<CR>
:map <F6> :! firefox % &<CR>
:map E Ea
"set autoindent
set tabstop=4
set shiftwidth=2
set expandtab
set smartindent
"
" Stuff for latex-suite
" REQUIRED. This makes vim invoke Latex-Suite when you open a tex file.
" It also allows you to set different actions for different filetypes
" in ~/.vim/after/ftplugin/*.vim
filetype plugin on
set shellslash
" IMPORTANT: grep will sometimes skip displaying the file name if you
" search in a singe file. This will confuse Latex-Suite. Set your grep
" program to always generate a file-name.
set grepprg=grep\ -nH\ $*
" OPTIONAL: This enables automatic indentation as you type.
filetype indent on
" OPTIONAL: Starting with Vim 7, the filetype of empty .tex files defaults to
" 'plaintex' instead of 'tex', which results in vim-latex not being loaded.
" The following changes the default filetype back to 'tex':
let g:tex_flavor='latex'
let g:Tex_ViewRule_pdf = 'okular'
"""""""""""""""""""""""""""""""""""""""
" => Shell command
"""""""""""""""""""""""""""""""""""""""
command! -complete=shellcmd -nargs=+ Shell call s:RunShellCommand(<q-args>)
function! s:RunShellCommand(cmdline)
let isfirst = 1
let words = []
for word in split(a:cmdline)
if isfirst
let isfirst = 0 " don't change first word (shell command)
else
if word[0] =~ '\v[%#<]'
let word = expand(word)
endif
let word = shellescape(word, 1)
endif
call add(words, word)
endfor
let expanded_cmdline = join(words)
rightbelow new
setlocal buftype=nofile bufhidden=wipe nobuflisted noswapfile nowrap
call setline(1, 'You entered: ' . a:cmdline)
call setline(2, 'Expanded to: ' . expanded_cmdline)
call append(line('$'), substitute(getline(2), '.', '=', 'g'))
silent execute '$read !'. expanded_cmdline
1
endfunction

Answer 1

This is likely to be a python issue.
On a side not, there's a great shell function for executing scripts and redirecting output to vim buffer (split window).
Syntax to execute current script (you should have chmod +x and shebang line):
:Shell ./#
In order to add the function, add this to .vimrc:
command! -complete=shellcmd -nargs=+ Shell call s:RunShellCommand(<q-args>)
function! s:RunShellCommand(cmdline)
let isfirst = 1
let words = []
for word in split(a:cmdline)
if isfirst
let isfirst = 0 " don't change first word (shell command)
else
if word[0] =~ '\v[%#<]'
let word = expand(word)
endif
let word = shellescape(word, 1)
endif
call add(words, word)
endfor
let expanded_cmdline = join(words)
rightbelow new
setlocal buftype=nofile bufhidden=wipe nobuflisted noswapfile nowrap
call setline(1, 'You entered: ' . a:cmdline)
call setline(2, 'Expanded to: ' . expanded_cmdline)
call append(line('$'), substitute(getline(2), '.', '=', 'g'))
silent execute '$read !'. expanded_cmdline
1
endfunction
https://github.com/ruslanosipov/dotfiles/blob/master/.vimrc#L137