Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: cairosvg 2.8.2 -> 2.9.0 https://github.com/Kozea/CairoSVG/releases
attrpath: cairosvg
Checking auto update branch...
[version] 
[version] skipping because derivation has updateScript
[rustCrateVersion] 
[rustCrateVersion] No cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] this derivation will be built:
  /nix/store/x8grs2hxm7pfhkd6ghf5nhzjbiknlcdg-packages.json.drv
building '/nix/store/x8grs2hxm7pfhkd6ghf5nhzjbiknlcdg-packages.json.drv'...

Going to be running update for following packages:
 - cairosvg-2.8.2

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - cairosvg-2.8.2: UPDATING ...
 - cairosvg-2.8.2: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/development/python-modules/cairosvg/default.nix b/pkgs/development/python-modules/cairosvg/default.nix
index 509f6b18256f..7daab37c42a4 100644
--- a/pkgs/development/python-modules/cairosvg/default.nix
+++ b/pkgs/development/python-modules/cairosvg/default.nix
@@ -19,14 +19,14 @@
 
 buildPythonPackage rec {
   pname = "cairosvg";
-  version = "2.8.2";
+  version = "2.9.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "Kozea";
     repo = "CairoSVG";
     tag = version;
-    hash = "sha256-KWUZA8pcHMnDEkAYZt3zDzPNynhGBuLZuagNPfHF8EA=";
+    hash = "sha256-WtMFOYaN/cRrL1Q4ma/UkR3kNFObNhp0Gm7i9NQAqz8=";
   };
 
   build-system = [ setuptools ];

No auto update branch exists
Old version 2.8.2" not present in staging derivation file with contents: {
  lib,
  buildPythonPackage,
  fetchFromGitHub,

  # build-system
  setuptools,

  # dependencies
  cairocffi,
  cssselect2,
  defusedxml,
  pillow,
  tinycss2,

  # testing
  pytestCheckHook,
}:

buildPythonPackage rec {
  pname = "cairosvg";
  version = "2.9.0";
  pyproject = true;

  src = fetchFromGitHub {
    owner = "Kozea";
    repo = "CairoSVG";
    tag = version;
    hash = "sha256-WtMFOYaN/cRrL1Q4ma/UkR3kNFObNhp0Gm7i9NQAqz8=";
  };

  build-system = [ setuptools ];

  dependencies = [
    cairocffi
    cssselect2
    defusedxml
    pillow
    tinycss2
  ];

  nativeBuildInputs = [ cairocffi ];

  nativeCheckInputs = [ pytestCheckHook ];

  enabledTestPaths = [ "cairosvg/test_api.py" ];

  pythonImportsCheck = [ "cairosvg" ];

  meta = {
    homepage = "https://cairosvg.org";
    changelog = "https://github.com/Kozea/CairoSVG/releases/tag/${version}";
    license = lib.licenses.lgpl3Plus;
    description = "SVG converter based on Cairo";
    mainProgram = "cairosvg";
    maintainers = [ lib.maintainers.sarahec ];
  };
}