bugfix vim 8.1: E319: Sorry, the command is not available in this version: py << EOF

Author: TTWShell

install-plugins.sh

@@ -27,7 +27,7 @@ function init {
 }
 
 function rebuild() {
-    cd ~/.vim/plugged/YouCompleteMe && git submodule update --init --recursive && ./install.py "$@"
+    cd ~/.vim/plugged/YouCompleteMe && git submodule update --init --recursive && python3 install.py "$@"
 }
 
 function usage {

scripts/init-vim-centos.sh

@@ -7,12 +7,18 @@ sudo yum -y remove vim
 
 cd ~ && rm -rf vim && git clone git@github.com:vim/vim.git && cd vim
 ./configure --with-features=huge \
-            --enable-multibyte \
-            --enable-pythoninterp \
-            #--with-python-config-dir=/usr/lib/python2.7/config \
-            --enable-python3interp \
-            #--with-python3-config-dir=/usr/lib/python3.4/config \
-            --with-mac-arch=x86_64 \
-            --enable-gui=gtk2 --enable-cscope --prefix=/usr
+    --enable-multibyte \
+    --enable-rubyinterp=yes \
+    #--enable-pythoninterp=yes \
+    #--with-python-config-dir=/usr/lib/python2.7/config \
+    #--enable-python3interp=yes \
+    #--with-python3-config-dir=/usr/lib/python3.6/config \
+    --enable-pythoninterp=dynamic \
+    --enable-python3interp=dynamic \
+    --enable-perlinterp=yes \
+    --enable-luainterp=yes \
+    --enable-gui=gtk2 \
+    --enable-cscope \
+    --prefix=/usr/local
 make VIMRUNTIMEDIR=/usr/local/share/vim/vim81
 sudo make install

scripts/init-vim-ubuntu.sh

@@ -22,12 +22,18 @@ sudo apt-get remove -y vim vim-runtime gvim
 echoo ">>> Install vim ..."
 cd ~ && rm -rf vim && git clone https://github.com/vim/vim.git && cd vim
 ./configure --with-features=huge \
-            --enable-multibyte \
-            --enable-pythoninterp \
-            #--with-python-config-dir=/usr/lib/python2.7/config \
-            --enable-python3interp \
-            #--with-python3-config-dir=/usr/lib/python3.4/config \
-            --with-mac-arch=x86_64 \
-            --enable-gui=gtk2 --enable-cscope --prefix=/usr
+    --enable-multibyte \
+    --enable-rubyinterp=yes \
+    #--enable-pythoninterp=yes \
+    #--with-python-config-dir=/usr/lib/python2.7/config \
+    #--enable-python3interp=yes \
+    #--with-python3-config-dir=/usr/lib/python3.6/config \
+    --enable-pythoninterp=dynamic \
+    --enable-python3interp=dynamic \
+    --enable-perlinterp=yes \
+    --enable-luainterp=yes \
+    --enable-gui=gtk2 \
+    --enable-cscope \
+    --prefix=/usr/local
 make VIMRUNTIMEDIR=/usr/local/share/vim/vim81
 sudo make install

vimrc

@@ -24,7 +24,7 @@ Plug 'jnurmine/Zenburn'
 Plug 'flazz/vim-colorschemes'
 
 " best auto complete tool I have ever used(jedi, supertab...)
-Plug 'Valloric/YouCompleteMe', {'tag': '1e38a2b'}
+Plug 'Valloric/YouCompleteMe', {'tag': 'c9ff2177'}
 
 " tree explore plugin
 Plug 'scrooloose/nerdtree'
@@ -129,7 +129,7 @@ let g:ycm_complete_in_strings = 1
 let g:ycm_autoclose_preview_window_after_completion = 1
 let g:ycm_autoclose_preview_window_after_insertion = 1
 " let g:ycm_filetype_whitelist = { 'python': 1 }
-let g:ycm_python_binary_path = 'python'
+let g:ycm_python_binary_path = 'python3'
 map <C-G>  :YcmCompleter GoToDefinitionElseDeclaration<CR>
 "  fix .cpp error: ValueError: Still no compile flags, no completions yet.
 let g:ycm_global_ycm_extra_conf = '~/.vim/plugged/YouCompleteMe/third_party/ycmd/cpp/ycm/.ycm_extra_conf.py'
@@ -154,7 +154,7 @@ au BufNewFile,BufRead *.go
 \ set nolist
 
 "python with virtualenv support
-py << EOF
+py3 << EOF
 import os
 import sys
 if 'VIRTUAL_ENV' in os.environ: