diff --git a/pkgs/development/python-modules/anitopy/default.nix b/pkgs/development/python-modules/anitopy/default.nix
index 95f3af2b7cb5..d7d3f2a0e56b 100644
--- a/pkgs/development/python-modules/anitopy/default.nix
+++ b/pkgs/development/python-modules/anitopy/default.nix
@@ -16,7 +16,6 @@ buildPythonPackage rec {
   };
 
   pythonImportsCheck = [ "anitopy" ];
-  doCheck = true;
 
   meta = with lib; {
     description = "Python library for parsing anime video filenames";
diff --git a/pkgs/development/python-modules/beziers/default.nix b/pkgs/development/python-modules/beziers/default.nix
index 2af89a69c9fd..e0fdaaca9c0a 100644
--- a/pkgs/development/python-modules/beziers/default.nix
+++ b/pkgs/development/python-modules/beziers/default.nix
@@ -24,7 +24,6 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [ pyclipper ];
 
-  doCheck = true;
   nativeCheckInputs = [
     dotmap
     matplotlib
diff --git a/pkgs/development/python-modules/collidoscope/default.nix b/pkgs/development/python-modules/collidoscope/default.nix
index a8bec5c5cdcd..2ad63e83c081 100644
--- a/pkgs/development/python-modules/collidoscope/default.nix
+++ b/pkgs/development/python-modules/collidoscope/default.nix
@@ -30,7 +30,6 @@ buildPythonPackage rec {
     uharfbuzz
   ];
 
-  doCheck = true;
   nativeCheckInputs = [ unittestCheckHook ];
   unittestFlagsArray = [
     "-s"
diff --git a/pkgs/development/python-modules/commandlines/default.nix b/pkgs/development/python-modules/commandlines/default.nix
index b216858a584c..aa5da9c0d37f 100644
--- a/pkgs/development/python-modules/commandlines/default.nix
+++ b/pkgs/development/python-modules/commandlines/default.nix
@@ -18,7 +18,6 @@ buildPythonPackage rec {
     hash = "sha256-x3iUeOTAaTKNW5Y5foMPMJcWVxu52uYZoY3Hhe3UvQ4=";
   };
 
-  doCheck = true;
   nativeCheckInputs = [ pytestCheckHook ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/commitizen/default.nix b/pkgs/development/python-modules/commitizen/default.nix
index bdcb00d589c1..51b21badf446 100644
--- a/pkgs/development/python-modules/commitizen/default.nix
+++ b/pkgs/development/python-modules/commitizen/default.nix
@@ -77,8 +77,6 @@ buildPythonPackage rec {
     pytest7CheckHook
   ];
 
-  doCheck = true;
-
   pythonImportsCheck = [ "commitizen" ];
 
   # The tests require a functional git installation
diff --git a/pkgs/development/python-modules/dehinter/default.nix b/pkgs/development/python-modules/dehinter/default.nix
index e621b2979bcc..55dc1c503fb4 100644
--- a/pkgs/development/python-modules/dehinter/default.nix
+++ b/pkgs/development/python-modules/dehinter/default.nix
@@ -21,7 +21,6 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [ fonttools ];
 
-  doCheck = true;
   nativeCheckInputs = [ pytestCheckHook ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/dissect-jffs/default.nix b/pkgs/development/python-modules/dissect-jffs/default.nix
index a8c9fed87a46..aad42728587a 100644
--- a/pkgs/development/python-modules/dissect-jffs/default.nix
+++ b/pkgs/development/python-modules/dissect-jffs/default.nix
@@ -33,9 +33,6 @@ buildPythonPackage rec {
     dissect-util
   ];
 
-  # Test file handling fails
-  doCheck = true;
-
   pythonImportsCheck = [ "dissect.jffs" ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/dropbox/default.nix b/pkgs/development/python-modules/dropbox/default.nix
index 73a551a5c278..05ffb2f6c00d 100644
--- a/pkgs/development/python-modules/dropbox/default.nix
+++ b/pkgs/development/python-modules/dropbox/default.nix
@@ -52,8 +52,6 @@ buildPythonPackage rec {
       --replace "'pytest-runner==5.2.0'," ""
   '';
 
-  doCheck = true;
-
   pythonImportsCheck = [ "dropbox" ];
 
   nativeBuildInputs = [
diff --git a/pkgs/development/python-modules/eigenpy/default.nix b/pkgs/development/python-modules/eigenpy/default.nix
index d1844d34baed..307e5da468a2 100644
--- a/pkgs/development/python-modules/eigenpy/default.nix
+++ b/pkgs/development/python-modules/eigenpy/default.nix
@@ -50,7 +50,6 @@ buildPythonPackage rec {
     numpy
   ];
 
-  doCheck = true;
   pythonImportsCheck = [ "eigenpy" ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/font-v/default.nix b/pkgs/development/python-modules/font-v/default.nix
index 4f1a22a640d0..945f77698ef7 100644
--- a/pkgs/development/python-modules/font-v/default.nix
+++ b/pkgs/development/python-modules/font-v/default.nix
@@ -26,7 +26,6 @@ buildPythonPackage rec {
     gitpython
   ];
 
-  doCheck = true;
   nativeCheckInputs = [
     git
     pytestCheckHook
diff --git a/pkgs/development/python-modules/fontfeatures/default.nix b/pkgs/development/python-modules/fontfeatures/default.nix
index b6a4482b4ba4..11943c36e05b 100644
--- a/pkgs/development/python-modules/fontfeatures/default.nix
+++ b/pkgs/development/python-modules/fontfeatures/default.nix
@@ -31,7 +31,6 @@ buildPythonPackage rec {
     youseedee
   ];
 
-  doCheck = true;
   nativeCheckInputs = [ pytestCheckHook ];
   disabledTestPaths = [
     # These tests require babelfont but we have to leave it out and skip them
diff --git a/pkgs/development/python-modules/gst-python/default.nix b/pkgs/development/python-modules/gst-python/default.nix
index ab476729c66f..5c0b7f3146e7 100644
--- a/pkgs/development/python-modules/gst-python/default.nix
+++ b/pkgs/development/python-modules/gst-python/default.nix
@@ -53,8 +53,6 @@ buildPythonPackage rec {
     "-Dpython=${python.pythonOnBuildForHost.interpreter}"
   ];
 
-  doCheck = true;
-
   # TODO: Meson setup hook does not like buildPythonPackage
   # https://github.com/NixOS/nixpkgs/issues/47390
   installCheckPhase = "meson test --print-errorlogs";
diff --git a/pkgs/development/python-modules/iwlib/default.nix b/pkgs/development/python-modules/iwlib/default.nix
index 01f83b80a003..08348a6de3ab 100644
--- a/pkgs/development/python-modules/iwlib/default.nix
+++ b/pkgs/development/python-modules/iwlib/default.nix
@@ -23,7 +23,6 @@ buildPythonPackage rec {
   nativeBuildInputs = [ pytest ];
   pythonImportsCheck = [ "iwlib" ];
 
-  doCheck = true;
   checkInputs = [ pytest ];
   checkPhase = "python iwlib/_iwlib_build.py; pytest -v";
 
diff --git a/pkgs/development/python-modules/kinparse/default.nix b/pkgs/development/python-modules/kinparse/default.nix
index a925347da318..8ddde08f68d8 100644
--- a/pkgs/development/python-modules/kinparse/default.nix
+++ b/pkgs/development/python-modules/kinparse/default.nix
@@ -19,7 +19,6 @@ buildPythonPackage {
     sha256 = "1nrjnybwzy93c79yylcwmb4lvkx7hixavnjwffslz0zwn32l0kx3";
   };
 
-  doCheck = true;
   pythonImportsCheck = [ "kinparse" ];
 
   nativeCheckInputs = [ pytest ];
diff --git a/pkgs/development/python-modules/kurbopy/default.nix b/pkgs/development/python-modules/kurbopy/default.nix
index 3542fb60b281..3ced53fcde02 100644
--- a/pkgs/development/python-modules/kurbopy/default.nix
+++ b/pkgs/development/python-modules/kurbopy/default.nix
@@ -29,7 +29,6 @@ buildPythonPackage rec {
     hash = "sha256-W0BebCXC1wqwtQP+zHjISxSJjXHD9U6p9eNS12Nfb2Y=";
   };
 
-  doCheck = true;
   nativeCheckInputs = [ pytestCheckHook ];
   preCheck = ''
     # pytestCheckHook puts . at the front of Python's sys.path, due to:
diff --git a/pkgs/development/python-modules/lcov-cobertura/default.nix b/pkgs/development/python-modules/lcov-cobertura/default.nix
index f17dfec5900a..d04302c6a18e 100644
--- a/pkgs/development/python-modules/lcov-cobertura/default.nix
+++ b/pkgs/development/python-modules/lcov-cobertura/default.nix
@@ -22,7 +22,6 @@ buildPythonPackage rec {
   build-system = [ setuptools ];
   dependencies = [ distutils ];
 
-  doCheck = true;
   pythonImportsCheck = [ "lcov_cobertura" ];
 
   meta = {
diff --git a/pkgs/development/python-modules/meep/default.nix b/pkgs/development/python-modules/meep/default.nix
index d034595d03e4..1608a5e67ec9 100644
--- a/pkgs/development/python-modules/meep/default.nix
+++ b/pkgs/development/python-modules/meep/default.nix
@@ -122,7 +122,6 @@ buildPythonPackage rec {
     (calls `sim.run()`), as only then MPI will be initialised and MPI linking
     errors can be caught.
   */
-  doCheck = true;
   nativeCheckInputs = [
     mpiCheckPhaseHook
     openssh
diff --git a/pkgs/development/python-modules/opentypespec/default.nix b/pkgs/development/python-modules/opentypespec/default.nix
index ea4f2ca3530d..81fc60e5dc55 100644
--- a/pkgs/development/python-modules/opentypespec/default.nix
+++ b/pkgs/development/python-modules/opentypespec/default.nix
@@ -15,7 +15,6 @@ buildPythonPackage rec {
     hash = "sha256-fOEHmtlCkFhn1jyIA+CsHIfud7x3PPb7UWQsnrVyDqY=";
   };
 
-  doCheck = true;
   nativeCheckInputs = [ unittestCheckHook ];
   unittestFlagsArray = [
     "-s"
diff --git a/pkgs/development/python-modules/ots-python/default.nix b/pkgs/development/python-modules/ots-python/default.nix
index 7aba8368fd8b..9c0ae3625c21 100644
--- a/pkgs/development/python-modules/ots-python/default.nix
+++ b/pkgs/development/python-modules/ots-python/default.nix
@@ -32,7 +32,6 @@ buildPythonPackage rec {
   propagatedBuildInputs = [ opentype-sanitizer ];
   nativeBuildInputs = [ setuptools-scm ];
 
-  doCheck = true;
   nativeCheckInputs = [ pytestCheckHook ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/pid/default.nix b/pkgs/development/python-modules/pid/default.nix
index b0bb834a302f..0add8799be8b 100644
--- a/pkgs/development/python-modules/pid/default.nix
+++ b/pkgs/development/python-modules/pid/default.nix
@@ -29,8 +29,6 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [ pytestCheckHook ];
 
-  doCheck = true;
-
   meta = with lib; {
     description = "Pidfile featuring stale detection and file-locking";
     homepage = "https://github.com/trbs/pid/";
diff --git a/pkgs/development/python-modules/pyarrow/default.nix b/pkgs/development/python-modules/pyarrow/default.nix
index e22429f0716f..ba171e372c8b 100644
--- a/pkgs/development/python-modules/pyarrow/default.nix
+++ b/pkgs/development/python-modules/pyarrow/default.nix
@@ -80,7 +80,6 @@ buildPythonPackage rec {
   PARQUET_HOME = arrow-cpp;
 
   ARROW_TEST_DATA = lib.optionalString doCheck arrow-cpp.ARROW_TEST_DATA;
-
   doCheck = true;
 
   dontUseCmakeConfigure = true;
diff --git a/pkgs/development/python-modules/pycangjie/default.nix b/pkgs/development/python-modules/pycangjie/default.nix
index caca2f9f3d0a..65768bdc806f 100644
--- a/pkgs/development/python-modules/pycangjie/default.nix
+++ b/pkgs/development/python-modules/pycangjie/default.nix
@@ -43,8 +43,6 @@ buildPythonPackage {
 
   configureScript = "./autogen.sh";
 
-  doCheck = true;
-
   meta = with lib; {
     description = "Python wrapper to libcangjie";
     homepage = "http://cangjians.github.io/projects/pycangjie/";
diff --git a/pkgs/development/python-modules/pymoo/default.nix b/pkgs/development/python-modules/pymoo/default.nix
index fc044a935812..50bccf006ab5 100644
--- a/pkgs/development/python-modules/pymoo/default.nix
+++ b/pkgs/development/python-modules/pymoo/default.nix
@@ -70,7 +70,6 @@ buildPythonPackage rec {
     scipy
   ];
 
-  doCheck = true;
   preCheck = ''
     substituteInPlace pymoo/config.py \
       --replace-fail "https://raw.githubusercontent.com/anyoptimization/pymoo-data/main/" \
diff --git a/pkgs/development/python-modules/pyqt/6.x.nix b/pkgs/development/python-modules/pyqt/6.x.nix
index 6356eeb9637f..b1bf34abd489 100644
--- a/pkgs/development/python-modules/pyqt/6.x.nix
+++ b/pkgs/development/python-modules/pyqt/6.x.nix
@@ -130,7 +130,6 @@ buildPythonPackage rec {
   dontConfigure = true;
 
   # Checked using pythonImportsCheck, has no tests
-  doCheck = true;
 
   pythonImportsCheck =
     [
diff --git a/pkgs/development/python-modules/pyqt6-webengine/default.nix b/pkgs/development/python-modules/pyqt6-webengine/default.nix
index 5ea0b8b1941d..59a2a1eeab86 100644
--- a/pkgs/development/python-modules/pyqt6-webengine/default.nix
+++ b/pkgs/development/python-modules/pyqt6-webengine/default.nix
@@ -73,7 +73,6 @@ buildPythonPackage rec {
   dontConfigure = true;
 
   # Checked using pythonImportsCheck, has no tests
-  doCheck = true;
 
   pythonImportsCheck = [
     "PyQt6.QtWebEngineCore"
diff --git a/pkgs/development/python-modules/python-barbicanclient/default.nix b/pkgs/development/python-modules/python-barbicanclient/default.nix
index 7188c8381605..9c65649a2336 100644
--- a/pkgs/development/python-modules/python-barbicanclient/default.nix
+++ b/pkgs/development/python-modules/python-barbicanclient/default.nix
@@ -60,8 +60,6 @@ buildPythonPackage rec {
     requests
   ];
 
-  doCheck = true;
-
   nativeCheckInputs = [
     requests-mock
     stestr
diff --git a/pkgs/development/python-modules/python-musicpd/default.nix b/pkgs/development/python-modules/python-musicpd/default.nix
index 72ba24cc0aeb..f0a0277eb48c 100644
--- a/pkgs/development/python-modules/python-musicpd/default.nix
+++ b/pkgs/development/python-modules/python-musicpd/default.nix
@@ -19,8 +19,6 @@ buildPythonPackage rec {
 
   build-system = [ setuptools ];
 
-  doCheck = true;
-
   meta = with lib; {
     description = "MPD (Music Player Daemon) client library written in pure Python";
     homepage = "https://gitlab.com/kaliko/python-musicpd";
diff --git a/pkgs/development/python-modules/pyytlounge/default.nix b/pkgs/development/python-modules/pyytlounge/default.nix
index 2ec7c3255562..bbb3ba23163f 100644
--- a/pkgs/development/python-modules/pyytlounge/default.nix
+++ b/pkgs/development/python-modules/pyytlounge/default.nix
@@ -13,6 +13,7 @@
 buildPythonPackage rec {
   pname = "pyytlounge";
   version = "2.1.1";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "FabioGNR";
@@ -21,10 +22,6 @@ buildPythonPackage rec {
     hash = "sha256-0QPa3EzOBv5fuw3FGgmoN4KiC4KHo1Z+Svjcneoe0pc=";
   };
 
-  pyproject = true;
-
-  doCheck = true;
-
   build-system = [ hatchling ];
 
   dependencies = [ aiohttp ];
diff --git a/pkgs/development/python-modules/rasterio/default.nix b/pkgs/development/python-modules/rasterio/default.nix
index 40033924bfda..ce6bb19ef5a5 100644
--- a/pkgs/development/python-modules/rasterio/default.nix
+++ b/pkgs/development/python-modules/rasterio/default.nix
@@ -88,8 +88,6 @@ buildPythonPackage rec {
     shapely
   ];
 
-  doCheck = true;
-
   preCheck = ''
     rm -r rasterio # prevent importing local rasterio
   '';
diff --git a/pkgs/development/python-modules/rouge-score/default.nix b/pkgs/development/python-modules/rouge-score/default.nix
index adc543b1d907..59d05016720c 100644
--- a/pkgs/development/python-modules/rouge-score/default.nix
+++ b/pkgs/development/python-modules/rouge-score/default.nix
@@ -52,8 +52,6 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [ pytestCheckHook ];
 
-  doCheck = true;
-
   disabledTests = [
     # https://github.com/google-research/google-research/issues/1203
     "testRougeLSumSentenceSplitting"
diff --git a/pkgs/development/python-modules/rstr/default.nix b/pkgs/development/python-modules/rstr/default.nix
index 7bf0eb244fb9..cf2a5ef42212 100644
--- a/pkgs/development/python-modules/rstr/default.nix
+++ b/pkgs/development/python-modules/rstr/default.nix
@@ -23,7 +23,6 @@ buildPythonPackage rec {
     setuptools-scm
   ];
 
-  doCheck = true;
   nativeCheckInputs = [ unittestCheckHook ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/scikits-odes/default.nix b/pkgs/development/python-modules/scikits-odes/default.nix
index f5ddb753ffaf..f9695701602c 100644
--- a/pkgs/development/python-modules/scikits-odes/default.nix
+++ b/pkgs/development/python-modules/scikits-odes/default.nix
@@ -38,7 +38,6 @@ buildPythonPackage rec {
     scipy
   ] ++ lib.optionals (!isPy3k) [ enum34 ];
 
-  doCheck = true;
   nativeCheckInputs = [ pytest ];
 
   checkPhase = ''
diff --git a/pkgs/development/python-modules/segyio/default.nix b/pkgs/development/python-modules/segyio/default.nix
index 9e221db8cfe7..574354ea44a0 100644
--- a/pkgs/development/python-modules/segyio/default.nix
+++ b/pkgs/development/python-modules/segyio/default.nix
@@ -42,7 +42,6 @@ buildPythonPackage rec {
     scikit-build
   ];
 
-  doCheck = true;
   # I'm not modifying the checkPhase nor adding a pytestCheckHook because the pytest is called
   # within the cmake test phase
   nativeCheckInputs = [
diff --git a/pkgs/development/python-modules/sip/4.x.nix b/pkgs/development/python-modules/sip/4.x.nix
index e9305188ca6b..8dc26ddfdc0d 100644
--- a/pkgs/development/python-modules/sip/4.x.nix
+++ b/pkgs/development/python-modules/sip/4.x.nix
@@ -57,8 +57,6 @@ buildPythonPackage rec {
     "sipconfig"
   ];
 
-  doCheck = true;
-
   meta = with lib; {
     description = "Creates C++ bindings for Python modules";
     mainProgram = "sip";
diff --git a/pkgs/development/python-modules/skyfield/default.nix b/pkgs/development/python-modules/skyfield/default.nix
index 8fe675eb5bed..b917cf214890 100644
--- a/pkgs/development/python-modules/skyfield/default.nix
+++ b/pkgs/development/python-modules/skyfield/default.nix
@@ -49,8 +49,6 @@ buildPythonPackage rec {
     assay
   ];
 
-  doCheck = true;
-
   checkPhase = ''
     runHook preCheck
 
diff --git a/pkgs/development/python-modules/spacy-transformers/annotation-test/default.nix b/pkgs/development/python-modules/spacy-transformers/annotation-test/default.nix
index d6d1094447d2..3205238b742b 100644
--- a/pkgs/development/python-modules/spacy-transformers/annotation-test/default.nix
+++ b/pkgs/development/python-modules/spacy-transformers/annotation-test/default.nix
@@ -17,7 +17,6 @@ stdenv.mkDerivation {
 
   dontConfigure = true;
   dontBuild = true;
-  doCheck = true;
 
   nativeCheckInputs = [
     pytest
diff --git a/pkgs/development/python-modules/spacy/annotation-test/default.nix b/pkgs/development/python-modules/spacy/annotation-test/default.nix
index cb8a97aa568f..5f5f8f3ca0a7 100644
--- a/pkgs/development/python-modules/spacy/annotation-test/default.nix
+++ b/pkgs/development/python-modules/spacy/annotation-test/default.nix
@@ -17,7 +17,6 @@ stdenv.mkDerivation {
 
   dontConfigure = true;
   dontBuild = true;
-  doCheck = true;
 
   nativeCheckInputs = [
     pytest
diff --git a/pkgs/development/python-modules/sre-yield/default.nix b/pkgs/development/python-modules/sre-yield/default.nix
index 04cc12184090..fdd8cc8b4b05 100644
--- a/pkgs/development/python-modules/sre-yield/default.nix
+++ b/pkgs/development/python-modules/sre-yield/default.nix
@@ -19,7 +19,6 @@ buildPythonPackage rec {
 
   nativeBuildInputs = [ setuptools ];
 
-  doCheck = true;
   nativeCheckInputs = [ unittestCheckHook ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/telegraph/default.nix b/pkgs/development/python-modules/telegraph/default.nix
index 80a4d12c7b16..3dd1ce594efb 100644
--- a/pkgs/development/python-modules/telegraph/default.nix
+++ b/pkgs/development/python-modules/telegraph/default.nix
@@ -34,8 +34,6 @@ buildPythonPackage rec {
 
   disabledTests = [ "test_get_page" ];
 
-  doCheck = true;
-
   pythonImportsCheck = [ "telegraph" ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/tpm2-pytss/default.nix b/pkgs/development/python-modules/tpm2-pytss/default.nix
index 44e1b68a257c..cf5f7f344012 100644
--- a/pkgs/development/python-modules/tpm2-pytss/default.nix
+++ b/pkgs/development/python-modules/tpm2-pytss/default.nix
@@ -81,8 +81,6 @@ buildPythonPackage rec {
     pyyaml
   ];
 
-  doCheck = true;
-
   nativeCheckInputs = [
     pytestCheckHook
     tpm2-tools
diff --git a/pkgs/development/python-modules/turnt/default.nix b/pkgs/development/python-modules/turnt/default.nix
index abed46cc766e..8d9af7740283 100644
--- a/pkgs/development/python-modules/turnt/default.nix
+++ b/pkgs/development/python-modules/turnt/default.nix
@@ -24,8 +24,6 @@ buildPythonPackage rec {
     tomli
   ];
 
-  doCheck = true;
-
   checkPhase = ''
     runHook preCheck
     $out/bin/turnt test/*/*.t
diff --git a/pkgs/development/python-modules/ufolint/default.nix b/pkgs/development/python-modules/ufolint/default.nix
index 95db33a7bfc1..714a5cac45f3 100644
--- a/pkgs/development/python-modules/ufolint/default.nix
+++ b/pkgs/development/python-modules/ufolint/default.nix
@@ -27,7 +27,6 @@ buildPythonPackage rec {
     fonttools
   ];
 
-  doCheck = true;
   nativeBuildInputs = [ pytestCheckHook ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/xapian/default.nix b/pkgs/development/python-modules/xapian/default.nix
index 382b67293272..fea907243d70 100644
--- a/pkgs/development/python-modules/xapian/default.nix
+++ b/pkgs/development/python-modules/xapian/default.nix
@@ -34,8 +34,6 @@ buildPythonPackage rec {
     xapian
   ];
 
-  doCheck = true;
-
   checkPhase = ''
     ${python.interpreter} python${pythonSuffix}/pythontest.py
   '';
diff --git a/pkgs/development/python-modules/xdot/default.nix b/pkgs/development/python-modules/xdot/default.nix
index 8cd817ea1c90..944b9f4619e9 100644
--- a/pkgs/development/python-modules/xdot/default.nix
+++ b/pkgs/development/python-modules/xdot/default.nix
@@ -60,8 +60,6 @@ buildPythonPackage rec {
     runHook postCheck
   '';
 
-  doCheck = true;
-
   meta = with lib; {
     description = "Interactive viewer for graphs written in Graphviz's dot";
     mainProgram = "xdot";
diff --git a/pkgs/development/python-modules/youseedee/default.nix b/pkgs/development/python-modules/youseedee/default.nix
index a5f45c10cbb5..afecf5a932c6 100644
--- a/pkgs/development/python-modules/youseedee/default.nix
+++ b/pkgs/development/python-modules/youseedee/default.nix
@@ -32,7 +32,6 @@ buildPythonPackage rec {
     requests
   ];
 
-  doCheck = true;
   # Package has no unit tests, but we can check an example as per README.rst:
   checkPhase = ''
     runHook preCheck