From 7a41423022053696be6c393c67ce1e7c510741dd Mon Sep 17 00:00:00 2001
From: Fabian Affolter <mail@fabian-affolter.ch>
Date: Mon, 17 Jan 2022 10:49:45 +0100
Subject: [PATCH] python3Packages.demjson: only run tests on Python 2

---
 .../python-modules/demjson/default.nix        | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/pkgs/development/python-modules/demjson/default.nix b/pkgs/development/python-modules/demjson/default.nix
index 25e2692af3ba..a25ecd74b5d0 100644
--- a/pkgs/development/python-modules/demjson/default.nix
+++ b/pkgs/development/python-modules/demjson/default.nix
@@ -1,25 +1,34 @@
-{ lib, python, buildPythonPackage, fetchPypi, isPy3k }:
+{ lib
+, python
+, buildPythonPackage
+, fetchPypi
+, isPy3k
+}:
 
 buildPythonPackage rec {
   pname = "demjson";
   version = "2.2.4";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
     sha256 = "0ygbddpnvp5lby6mr5kz60la3hkvwwzv3wwb3z0w9ngxl0w21pii";
   };
 
-  checkPhase = lib.optionalString isPy3k ''
-    ${python.interpreter} -m lib2to3 -w test/test_demjson.py
-  '' + ''
+  doCheck = !(isPy3k);
+
+  checkPhase = ''
     ${python.interpreter} test/test_demjson.py
   '';
 
+  pythonImportsCheck = [
+    "demjson"
+  ];
+
   meta = with lib; {
     description = "Encoder/decoder and lint/validator for JSON (JavaScript Object Notation)";
     homepage = "https://github.com/dmeranda/demjson";
     license = licenses.lgpl3Plus;
     maintainers = with maintainers; [ bjornfor ];
-    platforms = platforms.all;
   };
 }