Added py3kwarn checker

syntax_checkers/python/py3kwarn.vim

@@ -0,0 +1,26 @@
+"============================================================================
+"File:        py3kwarn.vim
+"Description: Syntax checking plugin for syntastic.vim
+"Authors:     Liam Curry <liam@curry.name>
+"
+"============================================================================
+if exists("g:loaded_syntastic_python_py3kwarn_checker")
+    finish
+endif
+let g:loaded_syntastic_python_py3kwarn_checker=1
+
+function! SyntaxCheckers_python_py3kwarn_IsAvailable()
+    return executable('py3kwarn')
+endfunction
+
+function! SyntaxCheckers_python_py3kwarn_GetLocList()
+    let makeprg = syntastic#makeprg#build({
+                \ 'exe': 'py3kwarn',
+                \ 'subchecker': 'py3kwarn' })
+    let errorformat = '%W%f:%l:%c: %m'
+    return SyntasticMake({ 'makeprg': makeprg, 'errorformat': errorformat })
+endfunction
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'python',
+    \ 'name': 'py3kwarn'})