Use jedi instead of python-mode

vim/ftplugin/python.vim

@@ -0,0 +1,4 @@
+" use python3 as linter
+if getline(1) =~# '^#!.*python3\>'
+    let syntastic_python_python_exec="python3"
+endif

vimrc.symlink

@@ -85,7 +85,8 @@ let g:clang_library_path='/usr/lib/llvm-4.0/lib/libclang-4.0.so.1'
 Plug 'lvht/phpcd.vim', { 'for': 'php', 'do': 'composer install' }
 
 " Python
-Plug 'python-mode/python-mode', { 'for': 'python' }
+Plug 'davidhalter/jedi-vim', { 'for': 'python', 'do': 'pip install jedi' }
+Plug 'zchee/deoplete-jedi', { 'for': 'python' }
 
 " Java
 Plug 'artur-shaik/vim-javacomplete2', { 'for': 'java' }