diff --git a/__pycache__/sample.d.er b/__pycache__/sample.d.er
new file mode 100644
index 00000000..5201f30d
--- /dev/null
+++ b/__pycache__/sample.d.er
@@ -0,0 +1,23 @@
+##[pylyzer] succeed c:\users\foo50\appdata\local\nvim\sample.py 1762887677 757
+
+
+
+.json: global::Dict!({{"d"}: {4}, {"b"}: {2}, {"c"}: {3}, {"a"}: {1}})
+
+.sample_func: () -> NoneType
+
+
+
+
+.json: global::Dict!({{"d"}: {4}, {"b"}: {2}, {"c"}: {3}, {"a"}: {1}})
+
+
+
+
+
+.json: global::Dict!({{"d"}: {4}, {"b"}: {2}, {"c"}: {3}, {"a"}: {1}})
+
+
+
+
+
diff --git a/lua/config/keymaps.lua b/lua/config/keymaps.lua
index a09f4caa..730cb325 100644
--- a/lua/config/keymaps.lua
+++ b/lua/config/keymaps.lua
@@ -7,6 +7,7 @@ map('n', '<C-c>', '<cmd>nohlsearch<CR>')
 map('n', '<leader>z', function()
   print("hey")
 end, { desc = "Print hey" })
+
 -- Keybinds to make split navigation easier.
 --  Use CTRL+<hjkl> to switch between windows
 --  See `:help wincmd` for a list of all window commands
@@ -15,3 +16,4 @@ map('n', '<C-l>', '<C-w><C-l>', { desc = 'Move focus to the right window' })
 map('n', '<C-j>', '<C-w><C-j>', { desc = 'Move focus to the lower window' })
 map('n', '<C-k>', '<C-w><C-k>', { desc = 'Move focus to the upper window' })
 
+map("n", "-", "<CMD>Oil<CR>", { desc = "Open parent directory" } )
diff --git a/lua/plugins/plugins.lua b/lua/plugins/plugins.lua
index f06b29a4..b574577f 100644
--- a/lua/plugins/plugins.lua
+++ b/lua/plugins/plugins.lua
@@ -103,5 +103,23 @@ return {
        vim.keymap.set('n', '<leader>f.', builtin.oldfiles, { desc = '[F]ind Recent Files ("." for repeat)' })
        vim.keymap.set('n', '<leader><leader>', builtin.buffers, { desc = '[ ] Find existing buffers' })
      end,
-    }
+  },
+
+  {
+    "kylechui/nvim-surround",
+    version = "^3.0.0", -- Use for stability; omit to use `main` branch for the latest features
+    event = "VeryLazy",
+    config = function()
+      require("nvim-surround").setup({})
+    end
+  },
+
+  {
+    "stevearc/oil.nvim",
+    ---@module 'oil'
+    ---@type oil.SetupOpts
+    opts = {},
+    lazy = false,
+  }
+
 }
diff --git a/sample.py b/sample.py
index c350cc6f..fd54bdf8 100644
--- a/sample.py
+++ b/sample.py
@@ -4,13 +4,14 @@ print("hello, world, ")
 print("hello, world, ")
 print("hello sir")
 json = {
-    "a" : 1,
+    'a' : 1,
     "b" : 2, 
     "c" : 3,
     "d" : 4,
 }
 print("file name sample.py")
-
+def sample_func():
+    print(123)
 ####################################################
 
 print("hello, worldworld")