diff --git a/pkgs/development/python-modules/attrs/default.nix b/pkgs/development/python-modules/attrs/default.nix
index 9ea1714ca595..08730e3d689e 100644
--- a/pkgs/development/python-modules/attrs/default.nix
+++ b/pkgs/development/python-modules/attrs/default.nix
@@ -1,5 +1,8 @@
-{ lib, stdenv, buildPythonPackage, fetchPypi, pytest, hypothesis, zope_interface
-, pympler, coverage, six, clang }:
+{ lib
+, callPackage
+, buildPythonPackage
+, fetchPypi
+}:
 
 buildPythonPackage rec {
   pname = "attrs";
@@ -10,18 +13,24 @@ buildPythonPackage rec {
     sha256 = "ef6aaac3ca6cd92904cdd0d83f629a15f18053ec84e6432106f7a4d04ae4f5fb";
   };
 
-  # macOS needs clang for testing
-  checkInputs = [
-    pytest hypothesis zope_interface pympler coverage six
-  ] ++ lib.optionals (stdenv.isDarwin) [ clang ];
+  outputs = [ "out" "testout" ];
 
-  checkPhase = ''
-    py.test
+  postInstall = ''
+    # Install tests as the tests output.
+    mkdir $testout
+    cp -R tests $testout/tests
   '';
 
-  # To prevent infinite recursion with pytest
+  pythonImportsCheck = [ "attr" ];
+
+  # pytest depends on attrs, so we can't do this out-of-the-box.
+  # Instead, we do this as a passthru.tests test.
   doCheck = false;
 
+  passthru.tests = {
+    pytest = callPackage ./tests.nix { };
+  };
+
   meta = with lib; {
     description = "Python attributes without boilerplate";
     homepage = "https://github.com/hynek/attrs";
diff --git a/pkgs/development/python-modules/attrs/tests.nix b/pkgs/development/python-modules/attrs/tests.nix
new file mode 100644
index 000000000000..c9fae9e0228c
--- /dev/null
+++ b/pkgs/development/python-modules/attrs/tests.nix
@@ -0,0 +1,21 @@
+{ buildPythonPackage
+, pytestCheckHook
+, attrs
+, hypothesis
+}:
+
+buildPythonPackage {
+  pname = "attrs-tests";
+  inherit (attrs) version;
+
+  srcs = attrs.testout;
+
+  dontBuild = true;
+  dontInstall = true;
+
+  checkInputs = [
+    attrs
+    hypothesis
+    pytestCheckHook
+  ];
+}