diff --git a/pkgs/development/python-modules/mwxml/default.nix b/pkgs/development/python-modules/mwxml/default.nix
index 615ddbd0a42b..1e0da024fd61 100644
--- a/pkgs/development/python-modules/mwxml/default.nix
+++ b/pkgs/development/python-modules/mwxml/default.nix
@@ -1,5 +1,6 @@
 {
   lib,
+  stdenv,
   buildPythonPackage,
   fetchPypi,
   jsonschema,
@@ -31,6 +32,11 @@ buildPythonPackage rec {
 
   pythonImportsCheck = [ "mwxml" ];
 
+  disabledTests = lib.optionals stdenv.hostPlatform.isDarwin [
+    # AttributeError: Can't get local object 'map.<locals>.process_path'
+    "test_complex_error_handler"
+  ];
+
   meta = {
     description = "Set of utilities for processing MediaWiki XML dump data";
     mainProgram = "mwxml";
diff --git a/pkgs/development/python-modules/para/default.nix b/pkgs/development/python-modules/para/default.nix
index f34260bf1531..7277d533dd86 100644
--- a/pkgs/development/python-modules/para/default.nix
+++ b/pkgs/development/python-modules/para/default.nix
@@ -1,5 +1,6 @@
 {
   lib,
+  stdenv,
   buildPythonPackage,
   fetchPypi,
   pytestCheckHook,
@@ -22,6 +23,9 @@ buildPythonPackage rec {
 
   pythonImportsCheck = [ "para" ];
 
+  #  AttributeError: Can't get local object 'test_output_queue_size.<locals>.get_the_a'
+  doCheck = !stdenv.hostPlatform.isDarwin;
+
   meta = {
     description = "Set utilities that ake advantage of python's 'multiprocessing' module to distribute CPU-intensive tasks";
     homepage = "https://pypi.org/project/para";