buildPythonPackage: rename nix_run_setup.py to nix_run_setup

If the extension is .py it tends to be picked up by tools, breaking for
example tests.

pkgs/applications/version-management/nbstripout/default.nix

@@ -25,7 +25,7 @@ buildPythonApplication rec {
 
   # ignore flake8 tests for the nix wrapped setup.py
   checkPhase = ''
-    PATH=$PATH:$out/bin:${mercurial}/bin pytest --ignore=nix_run_setup.py .
+    PATH=$PATH:$out/bin:${mercurial}/bin pytest .
   '';
 
   meta = {

pkgs/development/interpreters/python/build-python-package-setuptools.nix

@@ -21,18 +21,18 @@ let
   setuppy = ./run_setup.py;
 
 in attrs // {
-  # we copy nix_run_setup.py over so it's executed relative to the root of the source
+  # we copy nix_run_setup over so it's executed relative to the root of the source
   # many project make that assumption
   buildPhase = attrs.buildPhase or ''
     runHook preBuild
-    cp ${setuppy} nix_run_setup.py
-    ${python.interpreter} nix_run_setup.py ${lib.optionalString (setupPyBuildFlags != []) ("build_ext " + (lib.concatStringsSep " " setupPyBuildFlags))} bdist_wheel
+    cp ${setuppy} nix_run_setup
+    ${python.interpreter} nix_run_setup ${lib.optionalString (setupPyBuildFlags != []) ("build_ext " + (lib.concatStringsSep " " setupPyBuildFlags))} bdist_wheel
     runHook postBuild
   '';
 
   installCheckPhase = attrs.checkPhase or ''
     runHook preCheck
-    ${python.interpreter} nix_run_setup.py test
+    ${python.interpreter} nix_run_setup test
     runHook postCheck
   '';
 

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

@@ -16,7 +16,7 @@ buildPythonPackage rec {
   propagatedBuildInputs = [ django six ];
 
   checkPhase = ''
-    ${python.interpreter} nix_run_setup.py test --addopts="--ignore build"
+    ${python.interpreter} nix_run_setup test --addopts="--ignore build"
   '';
 
   meta = with stdenv.lib; {

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

@@ -17,10 +17,8 @@ buildPythonPackage rec {
 
   checkPhase = ''
     runHook preCheck
-    # pytest will try to run tests for nix_run_setup.py / files in build/lib which fails
-    mv nix_run_setup.py run_setup
     rm build -rf
-    ${python.interpreter} run_setup test
+    ${python.interpreter} nix_run_setup test
     runHook postCheck
   '';
 

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

@@ -39,9 +39,7 @@ buildPythonPackage rec {
     sha256 = "9ffbfb74bf3fc3905be1b9b052ed865675651e38fcd972ed1ed5c64a02f93cbd";
   };
 
-  # do not run checks on nix_run_setup.py
-  patches = lib.singleton ./setup.patch
-         ++ lib.optional (isPy35 || isPy36) ./python-3.6.3-test-failures.patch;
+  patches = lib.optional (isPy35 || isPy36) ./python-3.6.3-test-failures.patch;
 
   # testing based on project's tox.ini
   checkPhase = ''

pkgs/development/python-modules/natsort/setup.patch

@@ -1,20 +0,0 @@
-diff --git a/setup.cfg b/setup.cfg
-index 604994d..e38c3ec 100644
---- a/setup.cfg
-+++ b/setup.cfg
-@@ -6,6 +6,7 @@ formats = gztar
- 
- [tool:pytest]
- flakes-ignore = 
-+	nix_run_setup.py ALL
- 	natsort/compat/py23.py UndefinedName
- 	natsort/__init__.py UnusedImport
- 	natsort/compat/* UnusedImport
-@@ -14,6 +15,7 @@ flakes-ignore =
- 	test_natsort/test_locale_help.py UnusedImport RedefinedWhileUnused
- 	test_natsort/compat/* UnusedImport
- pep8ignore = 
-+	nix_run_setup.py ALL
- 	natsort/ns_enum.py E126 E241 E123 E221
- 	test_natsort/test_*.py E501 E241 E221
- 	test_natsort/test_natsort_keygen.py E501 E241 E221 E701

pkgs/development/python-modules/progressbar2/default.nix

@@ -37,7 +37,7 @@ buildPythonPackage rec {
   # ignore tests on the nix wrapped setup.py and don't flake .eggs directory
   checkPhase = ''
     runHook preCheck
-    ${python.interpreter} setup.py test --addopts "--ignore=nix_run_setup.py --ignore=.eggs"
+    ${python.interpreter} setup.py test --addopts "--ignore=.eggs"
     runHook postCheck
   '';
 

pkgs/development/python-modules/pytest-flake8/default.nix

@@ -17,7 +17,7 @@ buildPythonPackage rec {
   };
 
   checkPhase = ''
-    pytest --ignore=nix_run_setup.py .
+    pytest .
   '';
 
   meta = {

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

@@ -23,7 +23,6 @@ buildPythonPackage rec {
   doCheck = false;
 
   checkPhase = ''
-    rm nix_run_setup.py
     py.test
   '';
 

pkgs/tools/backup/borg/default.nix

@@ -41,9 +41,6 @@ python3Packages.buildPythonApplication rec {
     cp -R docs/_build/man $out/share/man/man1
   '';
 
-  # tests fail due to missing test command in nix_run_setup.py
-  doCheck = false;
-
   meta = with stdenv.lib; {
     description = "A deduplicating backup program (attic fork)";
     homepage = https://borgbackup.github.io/;

pkgs/top-level/python-packages.nix

@@ -10767,14 +10767,6 @@ in {
     ];
     LC_ALL = "en_US.UTF-8";
 
-    # Remove test that fails due to missing encoding in nix_run_setup.py, a
-    # file that buildPythonPackage copies to source trees at build time.
-    # PR with fix: https://github.com/NixOS/nixpkgs/pull/17430
-    # ("python: add file encoding to run_setup.py")
-    preBuild = ''
-      rm tests/test_encoding.py
-    '';
-
     meta = {
       description = "Python multimedia tagging library";
       homepage = http://code.google.com/p/mutagen;