Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: dataclass-wizard 0 -> 1
attrpath: dataclass-wizard
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/47jf6502zxhxdqrvrj91fakr23hnbxkm-packages.json.drv
building '/nix/store/47jf6502zxhxdqrvrj91fakr23hnbxkm-packages.json.drv'...

Going to be running update for following packages:
 - dataclass-wizard-0.39.1

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - dataclass-wizard-0.39.1: UPDATING ...
 - dataclass-wizard-0.39.1: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/development/python-modules/dataclass-wizard/default.nix b/pkgs/development/python-modules/dataclass-wizard/default.nix
index 8f093ae406a9..7f122f26ec29 100644
--- a/pkgs/development/python-modules/dataclass-wizard/default.nix
+++ b/pkgs/development/python-modules/dataclass-wizard/default.nix
@@ -15,14 +15,14 @@
 
 buildPythonPackage rec {
   pname = "dataclass-wizard";
-  version = "0.39.1";
+  version = "1.0.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "rnag";
     repo = "dataclass-wizard";
     tag = "v${version}";
-    hash = "sha256-X4/qe1nv/NwUvQGvVqbqIgi9Ej43jwJjzXyMaKAtN2A=";
+    hash = "sha256-tp7GnkCFCSnP13MKMO5rOkzrlTOuLCh/Zjfgz/Whgs0=";
   };
 
   build-system = [ setuptools ];

No auto update branch exists
There might already be an open PR for this update:
- python3Packages.dataclass-wizard: 0.39.1 -> 1.0.0
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/538110"