From 41d57564703300a5d795b380165d1cd4ee708b97 Mon Sep 17 00:00:00 2001
From: Randy Eckenrode <randy@largeandhighquality.com>
Date: Sun, 16 Jul 2023 19:20:08 -0600
Subject: [PATCH] python3Packages.maxminddb: fix build on Darwin
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The multiprocessing tests don’t work on Darwin presumably because it
uses the spawn start method instead of fork. Disable those tests to
allow maxminddb to build on Darwin again.
---
 pkgs/development/python-modules/maxminddb/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/python-modules/maxminddb/default.nix b/pkgs/development/python-modules/maxminddb/default.nix
index 90acdef2d363..b5f7fb9d5db0 100644
--- a/pkgs/development/python-modules/maxminddb/default.nix
+++ b/pkgs/development/python-modules/maxminddb/default.nix
@@ -31,6 +31,10 @@ buildPythonPackage rec {
     "maxminddb"
   ];
 
+  # The multiprocessing tests fail on Darwin because multiprocessing uses spawn instead of fork,
+  # resulting in an exception when it can’t pickle the `lookup` local function.
+  disabledTests = lib.optionals stdenv.isDarwin [ "multiprocessing" ];
+
   meta = with lib; {
     description = "Reader for the MaxMind DB format";
     homepage = "https://github.com/maxmind/MaxMind-DB-Reader-python";