python.pkgs.pyqtwebengine: init at 5.12.1

5.13.0 is available, however, it assumes qt 5.13 is used and fails
to build due to a missing QWebEngineNotification class.

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

@@ -0,0 +1,89 @@
+{ lib, fetchurl, pythonPackages, pkgconfig
+, qmake, qtbase, qtsvg, qtwebengine
+}:
+
+let
+
+  inherit (pythonPackages) buildPythonPackage python isPy3k pyqt5 enum34;
+  inherit (pyqt5) sip;
+
+in buildPythonPackage rec {
+  pname = "pyqtwebengine";
+  version = "5.12.1";
+  format = "other";
+
+  src = fetchurl {
+    url = "https://www.riverbankcomputing.com/static/Downloads/PyQtWebEngine/${version}/PyQtWebEngine_gpl-${version}.tar.gz";
+    sha256 = "0wylkd7fh2g27y3710rpxmj9wx0wpi3z7qbv6khiddm15rkh81w6";
+  };
+
+  outputs = [ "out" "dev" ];
+
+  nativeBuildInputs = [
+    pkgconfig
+    qmake
+    sip
+    qtbase
+    qtsvg
+    qtwebengine
+  ];
+
+  buildInputs = [
+    sip
+    qtbase
+    qtsvg
+    qtwebengine
+  ];
+
+  propagatedBuildInputs = [ pyqt5 ]
+    ++ lib.optional (!isPy3k) enum34;
+
+  configurePhase = ''
+    runHook preConfigure
+
+    mkdir -p "$out/share/sip/PyQt5"
+
+    # FIXME: Without --no-dist-info, I get
+    #     unable to create /nix/store/yv4pzx3lxk3lscq0pw3hqzs7k4x76xsm-python3-3.7.2/lib/python3.7/site-packages/PyQtWebEngine-5.12.dist-info
+    ${python.executable} configure.py -w \
+      --destdir="$out/${python.sitePackages}/PyQt5" \
+      --no-dist-info \
+      --apidir="$out/api/${python.libPrefix}" \
+      --sipdir="$out/share/sip/PyQt5" \
+      --pyqt-sipdir="${pyqt5}/share/sip/PyQt5" \
+      --stubsdir="$out/${python.sitePackages}/PyQt5"
+
+    runHook postConfigure
+  '';
+
+  postInstall = ''
+    # Let's make it a namespace package
+    cat << EOF > $out/${python.sitePackages}/PyQt5/__init__.py
+    from pkgutil import extend_path
+    __path__ = extend_path(__path__, __name__)
+    EOF
+  '';
+
+  installCheckPhase = let
+    modules = [
+      "PyQt5.QtWebEngine"
+      "PyQt5.QtWebEngineWidgets"
+    ];
+    imports = lib.concatMapStrings (module: "import ${module};") modules;
+  in ''
+    echo "Checking whether modules can be imported..."
+    PYTHONPATH=$PYTHONPATH:$out/${python.sitePackages} ${python.interpreter} -c "${imports}"
+  '';
+
+  doCheck = true;
+
+
+  enableParallelBuilding = true;
+
+  meta = with lib; {
+    description = "Python bindings for Qt5";
+    homepage    = http://www.riverbankcomputing.co.uk;
+    license     = licenses.gpl3;
+    platforms   = platforms.mesaPlatforms;
+  };
+}

pkgs/top-level/python-packages.nix

@@ -949,6 +949,10 @@ in {
   */
   pyqt5_with_qtwebkit = self.pyqt5.override { withWebKit = true; };
 
+  pyqtwebengine = pkgs.libsForQt5.callPackage ../development/python-modules/pyqtwebengine {
+    pythonPackages = self;
+  };
+
   pysc2 = callPackage ../development/python-modules/pysc2 { };
 
   pyscard = callPackage ../development/python-modules/pyscard { inherit (pkgs.darwin.apple_sdk.frameworks) PCSC; };