Only include vim-pyenv plugin when pyenv is installed

lua/conf/langs/python.lua

@@ -8,12 +8,12 @@ vim.api.nvim_create_autocmd(
     {
         pattern = "*.py",
         callback = function()
-		local buf = vim.api.nvim_get_current_buf()
-		vim.api.nvim_buf_set_option(buf, "expandtab")
-		vim.api.nvim_buf_set_option(buf, "autoindent")
-		vim.api.nvim_buf_set_option(buf, "tabstop", 4)
-		vim.api.nvim_buf_set_option(buf, "softtabstop", 4)
-		vim.api.nvim_buf_set_option(buf, "shiftwidth", 4)
+        local buf = vim.api.nvim_get_current_buf()
+        vim.api.nvim_buf_set_option(buf, "expandtab")
+        vim.api.nvim_buf_set_option(buf, "autoindent")
+        vim.api.nvim_buf_set_option(buf, "tabstop", 4)
+        vim.api.nvim_buf_set_option(buf, "softtabstop", 4)
+        vim.api.nvim_buf_set_option(buf, "shiftwidth", 4)
         end
     }
 )

lua/conf/plugins.lua

@@ -70,6 +70,8 @@ Plug 'sheerun/vim-polyglot'
 -------------------------
 
 -- Pyenv Support
-Plug 'lambdalisue/vim-pyenv'
+if vim.fn.executable('pyenv') == 1 then
+  Plug 'lambdalisue/vim-pyenv'
+end
 
 vim.call('plug#end')