python3Packages.fastdownload: cleanup, fix

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

@@ -2,33 +2,53 @@
   lib,
   buildPythonPackage,
   fetchPypi,
+
+  # build-system
+  setuptools,
+
+  # dependencies
   fastprogress,
   fastcore,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "fastdownload";
   version = "0.0.7";
-  format = "setuptools";
+  pyproject = true;
+  __structuredAttrs = true;
 
+  # No tag for 0.0.7 on GitHub
   src = fetchPypi {
-    inherit pname version;
+    inherit (finalAttrs) pname version;
     hash = "sha256-IFB+246JQGofvXd15uKj2BpN1jPdUGsOnPDhYT6DHWo=";
   };
 
-  propagatedBuildInputs = [
+  # pkg_resources used to come with setuptools but was removed
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace-fail \
+        "from pkg_resources import parse_version" \
+        "from packaging.version import parse as parse_version"
+  '';
+
+  build-system = [
+    setuptools
+  ];
+
+  dependencies = [
     fastprogress
     fastcore
   ];
 
-  # no real tests
-  doCheck = false;
   pythonImportsCheck = [ "fastdownload" ];
 
+  # no tests
+  doCheck = false;
+
   meta = {
-    homepage = "https://github.com/fastai/fastdownload";
     description = "Easily download, verify, and extract archives";
+    homepage = "https://github.com/fastai/fastdownload";
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ rxiao ];
   };
-}
+})