From 46bac7fdab8ce685d0f5a2e23e89ae686bcf35b5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Robert=20Sch=C3=BCtz?= <nix@dotlambda.de>
Date: Thu, 18 Jun 2026 14:35:35 -0700
Subject: [PATCH] python3Packages.iso4217: don't append date to version

---
 pkgs/development/python-modules/iso4217/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/development/python-modules/iso4217/default.nix b/pkgs/development/python-modules/iso4217/default.nix
index cebace0bf539..22dfbc95fb3a 100644
--- a/pkgs/development/python-modules/iso4217/default.nix
+++ b/pkgs/development/python-modules/iso4217/default.nix
@@ -26,6 +26,12 @@ buildPythonPackage rec {
     hash = "sha256-C7TwGlbTwpcJ0rE7notWzZHthWzXKMPbHq00zMhfHeA=";
   };
 
+  postPatch = ''
+    # get_version() appends a date to the version prefix
+    substituteInPlace setup.py \
+      --replace-fail 'version=get_version()' 'version="${version}"'
+  '';
+
   build-system = [ setuptools ];
 
   nativeCheckInputs = [ pytestCheckHook ];