pythonPackages.pytestrunner: 2.6.2 -> 3.0

Also add missing dependency to progressbar2

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

···
 , pytestcov
 , pytestcache
 , pep8
+, pytestrunner
 }:
 
 buildPythonPackage rec {
···
   };
 
   propagatedBuildInputs = [ python-utils ];
+  nativeBuildInputs = [ pytestrunner ];
   checkInputs = [
     pytest sphinx coverage execnet flake8 pytestpep8 pytestflakes pytestcov
     pytestcache pep8

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

···
+{ stdenv, buildPythonPackage, fetchPypi, setuptools_scm, pytest }:
+
+buildPythonPackage rec {
+  pname = "pytest-runner";
+  version = "3.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "00v7pi09q60yx0l1kzyklnmr5bp597mir85a9gsi7bdfyly3lz0g";
+  };
+
+  buildInputs = [ setuptools_scm pytest ];
+
+  meta = with stdenv.lib; {
+    description = "Invoke py.test as distutils command with dependency resolution";
+    homepage = https://bitbucket.org/pytest-dev/pytest-runner;
+    license = licenses.mit;
+  };
+}

pkgs/top-level/python-packages.nix

···
     };
   };
 
-  pytestrunner = buildPythonPackage rec {
-    version = "2.6.2";
-    name = "pytest-runner-${version}";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/p/pytest-runner/${name}.tar.gz";
-      sha256 = "e775a40ee4a3a1d45018b199c44cc20bbe7f3df2dc8882f61465bb4141c78cdb";
-    };
-
-    buildInputs = with self; [setuptools_scm pytest];
-
-    meta = {
-      description = "Invoke py.test as distutils command with dependency resolution";
-      homepage = https://bitbucket.org/pytest-dev/pytest-runner;
-      license = licenses.mit;
-    };
-
-    # Trying to run tests fails with # RuntimeError: dictionary changed size during iteration
-    doCheck = false;
-  };
+  pytestrunner = callPackage ../development/python-modules/pytestrunner { };
 
   pytestquickcheck = callPackage ../development/python-modules/pytest-quickcheck { };