replace pyls with pylsp for python 3.11 support

README.md

@@ -187,7 +187,9 @@ All supported languages:
 More info about semantic completion for each supported language:
 
 - JavaScript & TypeScript: [tsserver](https://github.com/microsoft/TypeScript) required.
-- Python: [pylsp](https://github.com/palantir/python-language-server) required. (`pip install python-language-server`)
+- Python: There are 2 avilable python-language-server branches:
+    - [pyls](https://github.com/palantir/python-language-server) support python 3.5 ~ 3.10 ([pyls breaks autocomplete on Python 3.11](https://github.com/palantir/python-language-server/issues/959)), `pip3 install python-language-server`
+    - [pylsp](https://github.com/python-lsp/python-lsp-server) work well with python 3.11, `pip3 install python-lsp-server`, (Recommend)
 - Go: [gopls](https://github.com/golang/tools/tree/master/gopls) required. (`go get golang.org/x/tools/gopls`)
 - Vim Script: [vimls](https://github.com/iamcco/vim-language-server) required.
 - C++/C/OC：[Clangd](https://github.com/clangd/clangd) required.

autoload/easycomplete/installer/py.sh

@@ -2,4 +2,4 @@
 
 set -e
 
-"$(dirname "$0")/pip_install.sh" pyls python-language-server
+"$(dirname "$0")/pip_install.sh" pylsp python-lsp-server

plugin/easycomplete.vim

@@ -385,7 +385,7 @@ augroup easycomplete#PluginRegister
       \ 'completor': 'easycomplete#sources#py#completor',
       \ 'constructor' :'easycomplete#sources#py#constructor',
       \ 'gotodefinition': 'easycomplete#sources#py#GotoDefinition',
-      \ 'command': 'pyls'
+      \ 'command': 'pylsp'
       \ })
 
   au User easycomplete_default_plugin call easycomplete#RegisterSource({