python3Packages.blobfile: modernize

pkgs/development/python-modules/blobfile/default.nix

@@ -9,15 +9,17 @@
   urllib3,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "blobfile";
   version = "3.1.0";
   pyproject = true;
 
+  __structuredAttrs = true;
+
   src = fetchFromGitHub {
     owner = "christopher-hesse";
     repo = "blobfile";
-    tag = "v${version}";
+    tag = "v${finalAttrs.version}";
     hash = "sha256-aTHEJ1P+v9IWXPg9LN+KG1TlEVJh0qTl8J41iWpoPWk=";
   };
 
@@ -38,8 +40,8 @@ buildPythonPackage rec {
   meta = {
     description = "Read Google Cloud Storage, Azure Blobs, and local paths with the same interface";
     homepage = "https://github.com/christopher-hesse/blobfile";
-    changelog = "https://github.com/christopher-hesse/blobfile/blob/${src.tag}/CHANGES.md";
+    changelog = "https://github.com/christopher-hesse/blobfile/blob/${finalAttrs.src.tag}/CHANGES.md";
     license = lib.licenses.unlicense;
     maintainers = with lib.maintainers; [ happysalada ];
   };
-}
+})