python3Packages.atpython: fix build

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

@@ -3,6 +3,7 @@
 , fetchPypi
 , pytestCheckHook
 , pythonOlder
+, pdm-pep517
 , sybil
 , typing-extensions
 }:
@@ -10,7 +11,7 @@
 buildPythonPackage rec {
   pname = "atpublic";
   version = "3.0.1";
-  format = "setuptools";
+  format = "pyproject";
 
   disabled = pythonOlder "3.6";
 
@@ -19,6 +20,10 @@ buildPythonPackage rec {
     sha256 = "bb072b50e6484490404e5cb4034e782aaa339fdd6ac36434e53c10791aef18bf";
   };
 
+  nativeBuildInputs = [
+    pdm-pep517
+  ];
+
   propagatedBuildInputs = lib.optionals (pythonOlder "3.8") [
     typing-extensions
   ];
@@ -29,8 +34,7 @@ buildPythonPackage rec {
   ];
 
   postPatch = ''
-    substituteInPlace setup.cfg \
-      --replace "--cov=public" ""
+    sed -i '/cov=public/d' pyproject.toml
   '';
 
   pythonImportsCheck = [