Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: black 25.1.0 -> 26.1.0 https://github.com/psf/black/releases
attrpath: black
Checking auto update branch...
[version] 
[version] generic version rewriter does not support multiple hashes
[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/x9dz97psy492fkw8pxglifcw7163wkaj-packages.json.drv
building '/nix/store/x9dz97psy492fkw8pxglifcw7163wkaj-packages.json.drv'...

Going to be running update for following packages:
 - black-25.1.0

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - black-25.1.0: UPDATING ...
 - black-25.1.0: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/development/python-modules/black/default.nix b/pkgs/development/python-modules/black/default.nix
index ea56257d981f..549363a0d45f 100644
--- a/pkgs/development/python-modules/black/default.nix
+++ b/pkgs/development/python-modules/black/default.nix
@@ -23,12 +23,12 @@
 
 buildPythonPackage rec {
   pname = "black";
-  version = "25.1.0";
+  version = "26.1.0";
   pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-M0ltXNEiKtczkTUrSujaFSU8Xeibk6gLPiyNmhnsJmY=";
+    hash = "sha256-0pSsM0Du+cnrXSkojpbccZ/yaaiOJ7OWNARZ3YXaTFg=";
   };
 
   patches = [

No auto update branch exists
Python package with too many package rebuilds 2884  > 100