Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: doujinshi-dl 0 -> 1
attrpath: doujinshi-dl
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/4pslbh87gxj7k2j87kj7sj5qn6h8drsv-packages.json.drv
building '/nix/store/4pslbh87gxj7k2j87kj7sj5qn6h8drsv-packages.json.drv'...
structuredAttrs is enabled

Going to be running update for following packages:
 - doujinshi-dl-2.0.9

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - doujinshi-dl-2.0.9: UPDATING ...
 - doujinshi-dl-2.0.9: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/do/doujinshi-dl/package.nix b/pkgs/by-name/do/doujinshi-dl/package.nix
index 5b8f31bb13b9..65beb4586c8f 100644
--- a/pkgs/by-name/do/doujinshi-dl/package.nix
+++ b/pkgs/by-name/do/doujinshi-dl/package.nix
@@ -6,7 +6,7 @@
 
 python3.pkgs.buildPythonApplication rec {
   pname = "doujinshi-dl";
-  version = "2.0.9";
+  version = "2.1.0";
   pyproject = true;
 
   __structuredAttrs = true;
@@ -15,7 +15,7 @@ python3.pkgs.buildPythonApplication rec {
     owner = "RicterZ";
     repo = "doujinshi-dl";
     tag = "v${version}";
-    hash = "sha256-MeJZEsLH+guMwwkqDBpzqHws6TuhMG79LGR/Sdw7xRw=";
+    hash = "sha256-h/7uJThrGA4MEksHVHqAoToYgaYrFOLJd30mXP83Sfg=";
   };
 
   build-system = with python3.pkgs; [

No auto update branch exists
Old version 2.0.9" not present in staging derivation file with contents: {
  lib,
  fetchFromGitHub,
  fetchPypi,
  python3Packages,
}:

python3Packages.buildPythonApplication (finalAttrs: {
  pname = "doujinshi-dl";
  version = "2.1.0";
  pyproject = true;

  src = fetchFromGitHub {
    owner = "RicterZ";
    repo = "doujinshi-dl";
    tag = "v${finalAttrs.version}";
    hash = "sha256-h/7uJThrGA4MEksHVHqAoToYgaYrFOLJd30mXP83Sfg=";
  };

  build-system = with python3Packages; [ poetry-core ];

  dependencies = with python3Packages; [
    beautifulsoup4
    chardet
    httpx
    iso8601
    requests
    soupsieve
    tabulate
    urllib3
  ];

  # Project has no test
  doCheck = false;

  pythonImportsCheck = [ "doujinshi_dl" ];

  meta = {
    description = "CLI tool for downloading doujinshi from adult site(s)";
    homepage = "https://github.com/RicterZ/doujinshi-dl";
    changelog = "https://github.com/RicterZ/doujinshi-dl/releases/tag/${finalAttrs.src.tag}";
    license = lib.licenses.mit;
    maintainers = [ ];
    mainProgram = "doujinshi-dl";
  };
})