python312Packages.pgpy: fix build

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

@@ -7,6 +7,7 @@
   pyasn1,
   cryptography,
   pytestCheckHook,
+  standard-imghdr,
 }:
 
 buildPythonPackage rec {
@@ -15,7 +16,7 @@ buildPythonPackage rec {
 
   disabled = pythonOlder "3.6";
 
-  format = "pyproject";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "SecurityInnovation";
@@ -24,24 +25,33 @@ buildPythonPackage rec {
     hash = "sha256-47YiHNxmjyCOYHHUV3Zyhs3Att9HZtCXYfbN34ooTxU=";
   };
 
-  nativeBuildInputs = [ setuptools ];
+  build-system = [ setuptools ];
 
-  propagatedBuildInputs = [
-    pyasn1
-    cryptography
-  ];
+  dependencies =
+    [
+      pyasn1
+      cryptography
+    ]
+    ++ lib.optionals (!pythonOlder "3.13") [
+      standard-imghdr
+    ];
+
+  postPatch = ''
+    substituteInPlace tests/test_10_exceptions.py \ # https://github.com/SecurityInnovation/PGPy/issues/472
+      --replace-fail ", 512" ", 1024" # We need longer test key because pgp deprecated length=512
+  '';
 
   nativeCheckInputs = [ pytestCheckHook ];
 
-  meta = with lib; {
+  meta = {
     homepage = "https://github.com/SecurityInnovation/PGPy";
     description = "Pretty Good Privacy for Python";
     longDescription = ''
       PGPy is a Python library for implementing Pretty Good Privacy into Python
       programs, conforming to the OpenPGP specification per RFC 4880.
     '';
-    license = licenses.bsd3;
-    maintainers = with maintainers; [
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [
       eadwu
       dotlambda
     ];