diff --git a/.zshrc b/.zshrc
index 10e2ef8..156eaeb 100644
--- a/.zshrc
+++ b/.zshrc
@@ -101,7 +101,7 @@ bindkey "^b" backward-word
 bindkey "^f" forward-word
 
 # brew
-export HOMEBREW_NO_AUTO_UPDATE=true  # 禁止 brew 每次安装软件都 upate 
+export HOMEBREW_NO_AUTO_UPDATE=true # 禁止 brew 每次安装软件都 upate
 
 # go
 export GOPROXY=goproxy.cn
@@ -110,7 +110,7 @@ export GOSUMDB="sum.golang.google.cn"
 [ -f ~/.zprofile ] && source ~/.zprofile
 [ -f ~/.fzf.zsh ] && source ~/.fzf.zsh
 
-# add z 
+# add z
 eval "$(lua /usr/local/z.lua/z.lua --init zsh)"
 
 export PATH="$HOME/.yarn/bin:$HOME/.config/yarn/global/node_modules/.bin:$PATH"
diff --git a/setup.py b/setup.py
index 7bd83e4..113df7b 100755
--- a/setup.py
+++ b/setup.py
@@ -6,36 +6,39 @@ import argparse
 
 home_dir = os.getenv("HOME")
 
+
 def main():
     parser = argparse.ArgumentParser()
-    parser.add_argument("-i","--install", help="install tools",type=str)
+    parser.add_argument("-i", "--init", help="init tools", type=str)
     args = parser.parse_args()
     installer = Installer()
-    installer.install(args.install)
+    installer.install(args.init)
+
 
 class Base(object):
     def cmd_exist(self, name):
         from shutil import which
         return which(name) is not None
 
-    def check_link(self, name:str,target:str):
+    def check_link(self, name: str, target: str):
         if os.path.islink(name):
             t = os.readlink(name)
             if t == target:
                 return
-        os.system("mv %s %s.bak"%(name,name))
-        os.system("ln -s %s %s"%(target,name))
+        os.system("mv %s %s.bak" % (name, name))
+        os.system("ln -s %s %s" % (target, name))
+
+
 class Installer(Base):
-    def install(self, val:str):
-        if val== "":
+    def install(self, val: str):
+        if val == "":
             print("install value is empty")
             exit()
-            
+
         install_map = {
             "neovim": self.install_neovim,
             "z": self.install_z,
             "git": self.install_git,
-            "packer": self.install_packer,
             "go": self.install_go,
         }
         if val in install_map:
@@ -43,61 +46,54 @@ class Installer(Base):
         else:
             print("cmd not support, install: "+val)
 
-
     # install neovim
     def install_neovim(self):
         if not self.cmd_exist("nvim"):
             os.chdir("/usr/local")
-            os.system("wget https://github.com/neovim/neovim/releases/download/v0.6.0/nvim-macos.tar.gz")
+            os.system(
+                "wget https://github.com/neovim/neovim/releases/download/v0.6.0/nvim-macos.tar.gz")
             os.system("tar zxf nvim-macos.tar.gz")
             os.system("ln -s /usr/local/nvim-osx64 /usr/local/nvim")
-        self.check_link(home_dir+"/.config/nvim",home_dir+"/.doftile/nvim")
+        self.check_link(home_dir+"/.config/nvim", home_dir+"/.doftile/nvim")
 
     def install_z(self):
         if not os.path.exists("/usr/local/z.lua"):
-            os.system("git clone --depth=1 https://github.com/skywind3000/z.lua.git /usr/local/z.lua")
+            run("git clone --depth=1 https://github.com/skywind3000/z.lua.git /usr/local/z.lua")
 
     def install_git(self):
         if not self.cmd_exist("git"):
             print("git is not exist")
-        self.check_link(home_dir+"/.gitconfig",  home_dir+"/.dotfile/git/.gitconfig")
+        self.check_link(home_dir+"/.gitconfig",  home_dir +
+                        "/.dotfile/git/.gitconfig")
 
-    def install_packer(self):
-        if not os.path.exists(home_dir+"/.local/share/nvim/site/pack/packer/start/packer.nvim"):
-            os.system("git clone --depth 1 https://github.com/wbthomason/packer.nvim ~/.local/share/nvim/site/pack/packer/start/packer.nvim")
-        else:
-            print("packer already installed")
     def install_go(self):
-        version = urllib.request.urlopen("https://go.dev/VERSION?m=text").read()
-        if self.cmd_exist("go"):
-            run("go version")
         cwd = os.getcwd()
-        os.chdir("/usr/local/")
-        name = "%s.darwin-amd64.tar.gz"%(version.decode())
-        u="https://dl.google.com/go/"+name
-        run("sudo mv go go_old")
-        run("sudo rm "+name)
-        run("sudo wget "+u)
-        run("sudo tar zxf "+name)
-        run("go version")
+        os.chdir("/usr/local")
+        if os.path.exists("/usr/local/opt/go/libexec"):
+            run("sudo mv go go_old")
+            run("sudo ln -s /usr/local/opt/go/libexec /usr/local/go")
         os.chdir(cwd)
         run("go install golang.org/x/tools/gopls@latest")
+
+
 class Base(object):
     def cmd_exist(self, name):
         from shutil import which
         return which(name) is not None
 
-    def check_link(self, name:str,target:str):
+    def check_link(self, name: str, target: str):
         if os.path.islink(name):
             t = os.readlink(name)
             if t == target:
-                print("path is right: %s"%name)
+                print("path is right: %s" % name)
                 return
-        os.system("mv %s %s.bak"%(name,name))
-        os.system("ln -s %s %s"%(target,name))
+        os.system("mv %s %s.bak" % (name, name))
+        os.system("ln -s %s %s" % (target, name))
 
-def run(cmd:str):
+
+def run(cmd: str):
     subprocess.run(cmd.split())
 
+
 if __name__ == '__main__':
     main()