From 2b080788e2178808fbb42674fbef8daae9aedebe Mon Sep 17 00:00:00 2001
From: Martin Weinelt <hexa@darmstadt.ccc.de>
Date: Mon, 15 Jun 2026 15:33:57 +0200
Subject: [PATCH] python3Packages.matplotlib: relax setuptools-scm constraint

Per their upstream comment this is fine for downstream distributors, as
it only breaks editable installs for them.
---
 pkgs/development/python-modules/matplotlib/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/development/python-modules/matplotlib/default.nix b/pkgs/development/python-modules/matplotlib/default.nix
index eed032805c76..20a63ca43387 100644
--- a/pkgs/development/python-modules/matplotlib/default.nix
+++ b/pkgs/development/python-modules/matplotlib/default.nix
@@ -95,6 +95,9 @@ buildPythonPackage (finalAttrs: {
     ''
     + ''
       patchShebangs tools
+
+      substituteInPlace pyproject.toml \
+        --replace-fail "setuptools_scm>=7,<10" "setuptools_scm"
     ''
     + lib.optionalString (stdenv.hostPlatform.isLinux && interactive) ''
       # fix paths to libraries in dlopen calls (headless detection)