python3Packages.sniffio: Use pytestCheckHook

and set format. Reformat.

pkgs/development/python-modules/sniffio/default.nix

@@ -1,25 +1,33 @@
-{ buildPythonPackage, lib, fetchPypi, glibcLocales, isPy3k
-, pythonOlder, pytest, curio
+{ buildPythonPackage
+, lib
+, fetchPypi
+, glibcLocales
+, isPy3k
+, pythonOlder
+, pytestCheckHook
+, curio
 }:
 
 buildPythonPackage rec {
   pname = "sniffio";
   version = "1.3.0";
+  format = "setuptools";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-5gMFxeXTFPU4klm38iqqM9j33uSXYxGSNK83VcVbkQE=";
+    hash = "sha256-5gMFxeXTFPU4klm38iqqM9j33uSXYxGSNK83VcVbkQE=";
   };
 
   disabled = !isPy3k;
 
-  buildInputs = [ glibcLocales ];
+  buildInputs = [
+    glibcLocales
+  ];
 
-  checkInputs = [ pytest curio ];
-
-  checkPhase = ''
-    pytest
-  '';
+  checkInputs = [
+    curio
+    pytestCheckHook
+  ];
 
   meta = with lib; {
     homepage = "https://github.com/python-trio/sniffio";