Switch Python Version for Vim & Syntastic

Question

Is it possible to change the python version used by syntastic for syntax checking?

As the Issue https://github.com/scrooloose/syntastic/issues/385 indicates I could

Answer 1

Not really, but you can get the python3 incompatible warning by install this package.

Let's say your current Syntastic Python checker is python and you want to get python3 incompatible warning. In command mode, you can add py3kwarn to g:syntastic_python_checkers by

:let g:syntastic_python_checkers=['python', 'py3kwarn']

and switch to python2.x only

:let g:syntastic_python_checkers=['python']