refactor(python): clean up nvim-dap-python implementation

Author: mehalter

lua/astrocommunity/pack/python/init.lua

@@ -101,30 +101,22 @@ return {
         dependencies = "mfussenegger/nvim-dap",
         ft = "python", -- NOTE: ft: lazy-load on filetype
         config = function(_, opts)
-          local path = function()
-            local ret = nil
+          local path
 
-            local ok, mason_registry = pcall(require, "mason-registry")
-            if ok then
-              local debugpy = mason_registry.get_package "debugpy"
-              if debugpy:is_installed() then
-                ret = vim.fn.expand "$MASON/packages/debugpy"
-                if vim.fn.has "win32" == 1 then
-                  return ret .. "/venv/Scripts/python"
-                else
-                  return ret .. "/venv/bin/python"
-                end
-              end
-            end
-
-            ret = vim.fn.exepath "debugpy-adapter"
-            if ret == "" then
-              return vim.fn.exepath "python"
+          local mason_registry_avail, mason_registry = pcall(require, "mason-registry")
+          if mason_registry_avail and mason_registry.is_installed "debugpy" then
+            path = vim.fn.expand "$MASON/packages/debugpy"
+            if vim.fn.has "win32" == 1 then
+              path = path .. "/venv/Scripts/python"
             else
-              return ret
+              path = path .. "/venv/bin/python"
             end
+          else
+            path = vim.fn.exepath "debugpy-adapter"
+            if path == "" then path = vim.fn.exepath "python" end
           end
-          require("dap-python").setup(path(), opts)
+
+          require("dap-python").setup(path, opts)
         end,
       },
     },