if you want to have the python syntax highlighting for wsgi-files, you just have to edit this vim file:
sudo vim /usr/share/vim/vim72/filetype.vim
After opening this file search for the keyword python. You can search with vim via the „/“-command. Type „:/ python“ and search the line:
au BufNewFile,BufRead *.py,*.pyw setf python
You just have to add ,*.wsgi after pyw. It should look like this:
au BufNewFile,BufRead *.py,*.pyw,*.wsgi setf python
Now you can open a wsgi-File and the syntax-highlighting should be enabled.