Refactor Python

include/effectengine/Effect.h

@@ -24,13 +24,13 @@ public:
 
 	friend class EffectModule;
 
-	Effect(Hyperion *hyperion
+	Effect(Hyperion* hyperion
 		, int priority
 		, int timeout
-				, const QString &script
-				, const QString &name
-				, const QJsonObject &args = QJsonObject()
-				, const QString &imageData = ""
+		, const QString& script
+		, const QString& name
+		, const QJsonObject& args = QJsonObject()
+		, const QString& imageData = ""
 	);
 	~Effect() override;
 
@@ -64,20 +64,20 @@ public:
 	QString getScript() const { return _script; }
 	QString getName() const { return _name; }
 
-	int getTimeout() const {return _timeout; }
+	int getTimeout() const { return _timeout; }
 	bool isEndless() const { return _isEndless; }
 
 	QJsonObject getArgs() const { return _args; }
 
 signals:
-	void setInput(int priority, const std::vector<ColorRgb> &ledColors, int timeout_ms, bool clearEffect);
-	void setInputImage(int priority, const Image<ColorRgb> &image, int timeout_ms, bool clearEffect);
+	void setInput(int priority, const std::vector<ColorRgb>& ledColors, int timeout_ms, bool clearEffect);
+	void setInputImage(int priority, const Image<ColorRgb>& image, int timeout_ms, bool clearEffect);
 
 private:
-	void setModuleParameters();
+	bool setModuleParameters();
 	void addImage();
 
-	Hyperion *_hyperion;
+	Hyperion* _hyperion;
 
 	const int _priority;
 
@@ -95,12 +95,12 @@ private:
 	/// Buffer for colorData
 	QVector<ColorRgb> _colors;
 
-	Logger *_log;
+	Logger* _log;
 	// Reflects whenever this effects should interrupt (timeout or external request)
-	std::atomic<bool> _interupt {};
+	std::atomic<bool> _interupt{};
 
 	QSize           _imageSize;
 	QImage          _image;
-	QPainter       *_painter;
+	QPainter*       _painter;
 	QVector<QImage> _imageStack;
 };

include/effectengine/EffectModule.h

@@ -8,47 +8,41 @@
 
 class Effect;
 
-class EffectModule: public QObject
+class EffectModule : public QObject
 {
 	Q_OBJECT
 
 public:
-	// Python 3 module def
-	static struct PyModuleDef moduleDef;
-
-	// Init module
-	static PyObject* PyInit_hyperion();
-
 	// Register module once
 	static void registerHyperionExtensionModule();
 
 	// json 2 python
-	static PyObject * json2python(const QJsonValue & jsonData);
+	static PyObject* json2python(const QJsonValue& jsonData);
 
 	// Wrapper methods for Python interpreter extra buildin methods
 	static PyMethodDef effectMethods[];
-	static PyObject* wrapSetColor              (PyObject *self, PyObject *args);
-	static PyObject* wrapSetImage              (PyObject *self, PyObject *args);
-	static PyObject* wrapGetImage              (PyObject *self, PyObject *args);
-	static PyObject* wrapAbort                 (PyObject *self, PyObject *args);
-	static PyObject* wrapImageShow             (PyObject *self, PyObject *args);
-	static PyObject* wrapImageLinearGradient   (PyObject *self, PyObject *args);
-	static PyObject* wrapImageConicalGradient  (PyObject *self, PyObject *args);
-	static PyObject* wrapImageRadialGradient   (PyObject *self, PyObject *args);
-	static PyObject* wrapImageSolidFill        (PyObject *self, PyObject *args);
-	static PyObject* wrapImageDrawLine         (PyObject *self, PyObject *args);
-	static PyObject* wrapImageDrawPoint        (PyObject *self, PyObject *args);
-	static PyObject* wrapImageDrawRect         (PyObject *self, PyObject *args);
-	static PyObject* wrapImageDrawPolygon      (PyObject *self, PyObject *args);
-	static PyObject* wrapImageDrawPie          (PyObject *self, PyObject *args);
-	static PyObject* wrapImageSetPixel         (PyObject *self, PyObject *args);
-	static PyObject* wrapImageGetPixel         (PyObject *self, PyObject *args);
-	static PyObject* wrapImageSave             (PyObject *self, PyObject *args);
-	static PyObject* wrapImageMinSize          (PyObject *self, PyObject *args);
-	static PyObject* wrapImageWidth            (PyObject *self, PyObject *args);
-	static PyObject* wrapImageHeight           (PyObject *self, PyObject *args);
-	static PyObject* wrapImageCRotate          (PyObject *self, PyObject *args);
-	static PyObject* wrapImageCOffset          (PyObject *self, PyObject *args);
-	static PyObject* wrapImageCShear           (PyObject *self, PyObject *args);
-	static PyObject* wrapImageResetT           (PyObject *self, PyObject *args);
+	static PyObject* wrapSetColor(PyObject* self, PyObject* args);
+	static PyObject* wrapSetImage(PyObject* self, PyObject* args);
+	static PyObject* wrapGetImage(PyObject* self, PyObject* args);
+	static PyObject* wrapAbort(PyObject* self, PyObject* args);
+	static PyObject* wrapImageShow(PyObject* self, PyObject* args);
+	static PyObject* wrapImageLinearGradient(PyObject* self, PyObject* args);
+	static PyObject* wrapImageConicalGradient(PyObject* self, PyObject* args);
+	static PyObject* wrapImageRadialGradient(PyObject* self, PyObject* args);
+	static PyObject* wrapImageSolidFill(PyObject* self, PyObject* args);
+	static PyObject* wrapImageDrawLine(PyObject* self, PyObject* args);
+	static PyObject* wrapImageDrawPoint(PyObject* self, PyObject* args);
+	static PyObject* wrapImageDrawRect(PyObject* self, PyObject* args);
+	static PyObject* wrapImageDrawPolygon(PyObject* self, PyObject* args);
+	static PyObject* wrapImageDrawPie(PyObject* self, PyObject* args);
+	static PyObject* wrapImageSetPixel(PyObject* self, PyObject* args);
+	static PyObject* wrapImageGetPixel(PyObject* self, PyObject* args);
+	static PyObject* wrapImageSave(PyObject* self, PyObject* args);
+	static PyObject* wrapImageMinSize(PyObject* self, PyObject* args);
+	static PyObject* wrapImageWidth(PyObject* self, PyObject* args);
+	static PyObject* wrapImageHeight(PyObject* self, PyObject* args);
+	static PyObject* wrapImageCRotate(PyObject* self, PyObject* args);
+	static PyObject* wrapImageCOffset(PyObject* self, PyObject* args);
+	static PyObject* wrapImageCShear(PyObject* self, PyObject* args);
+	static PyObject* wrapImageResetT(PyObject* self, PyObject* args);
 };

include/python/PythonInit.h

@@ -1,5 +1,9 @@
 #pragma once
 
+#undef slots
+#include <Python.h>
+#define slots Q_SLOTS
+
 ///
 /// @brief Handle the PythonInit, module registers and DeInit
 ///
@@ -10,4 +14,6 @@ private:
 
 	PythonInit();
 	~PythonInit();
+
+	void handlePythonError(PyStatus status, PyConfig& config);
 };

include/python/PythonProgram.h

@@ -9,6 +9,8 @@
 #include "Python.h"
 #define slots
 
+#include <python/PythonUtils.h>
+
 class Logger;
 
 class PythonProgram
@@ -17,9 +19,15 @@ public:
 	PythonProgram(const QString & name, Logger * log);
 	~PythonProgram();
 
+	operator PyThreadState* ()
+	{
+		return _tstate;
+	}
+
 	void execute(const QByteArray &python_code);
 
 private:
+
 	QString _name;
 	Logger* _log;
 	PyThreadState* _tstate;

libsrc/effectengine/Effect.cpp

@@ -13,7 +13,7 @@
 // python utils
 #include <python/PythonProgram.h>
 
-Effect::Effect(Hyperion *hyperion, int priority, int timeout, const QString &script, const QString &name, const QJsonObject &args, const QString &imageData)
+Effect::Effect(Hyperion* hyperion, int priority, int timeout, const QString& script, const QString& name, const QJsonObject& args, const QString& imageData)
 	: QThread()
 	, _hyperion(hyperion)
 	, _priority(priority)
@@ -26,7 +26,7 @@ Effect::Effect(Hyperion *hyperion, int priority, int timeout, const QString &scr
 	, _endTime(-1)
 	, _interupt(false)
 	, _imageSize(hyperion->getLedGridSize())
-	, _image(_imageSize,QImage::Format_ARGB32_Premultiplied)
+	, _image(_imageSize, QImage::Format_ARGB32_Premultiplied)
 {
 	_colors.resize(_hyperion->getLedCount());
 	_colors.fill(ColorRgb::BLACK);
@@ -61,41 +61,81 @@ int Effect::getRemaining() const
 
 	if (timeout >= 0)
 	{
-		timeout = static_cast<int>( _endTime - QDateTime::currentMSecsSinceEpoch());
+		timeout = static_cast<int>(_endTime - QDateTime::currentMSecsSinceEpoch());
 	}
 	return timeout;
 }
 
-void Effect::setModuleParameters()
+bool Effect::setModuleParameters()
 {
 	// import the buildtin Hyperion module
-	PyObject * module = PyImport_ImportModule("hyperion");
+	PyObject* module = PyImport_ImportModule("hyperion");
 
-	// add a capsule containing 'this' to the module to be able to retrieve the effect from the callback function
-	PyModule_AddObject(module, "__effectObj", PyCapsule_New((void*)this, "hyperion.__effectObj", nullptr));
+	if (module == nullptr) {
+		PyErr_Print();  // Print error if module import fails
+		return false;
+	}
 
-	// add ledCount variable to the interpreter
+	// Add a capsule containing 'this' to the module for callback access
+	PyObject* capsule = PyCapsule_New((void*)this, "hyperion.__effectObj", nullptr);
+	if (capsule == nullptr || PyModule_AddObject(module, "__effectObj", capsule) < 0) {
+		PyErr_Print();  // Print error if adding capsule fails
+		Py_XDECREF(module);  // Clean up if capsule addition fails
+		Py_XDECREF(capsule);
+		return false;
+	}
+
+	// Add ledCount variable to the interpreter
 	int ledCount = 0;
 	QMetaObject::invokeMethod(_hyperion, "getLedCount", Qt::BlockingQueuedConnection, Q_RETURN_ARG(int, ledCount));
-	PyObject_SetAttrString(module, "ledCount", Py_BuildValue("i", ledCount));
+	PyObject* ledCountObj = Py_BuildValue("i", ledCount);
+	if (PyObject_SetAttrString(module, "ledCount", ledCountObj) < 0) {
+		PyErr_Print();  // Print error if setting attribute fails
+	}
+	Py_XDECREF(ledCountObj);
 
-	// add minimumWriteTime variable to the interpreter
+	// Add minimumWriteTime variable to the interpreter
 	int latchTime = 0;
 	QMetaObject::invokeMethod(_hyperion, "getLatchTime", Qt::BlockingQueuedConnection, Q_RETURN_ARG(int, latchTime));
-	PyObject_SetAttrString(module, "latchTime", Py_BuildValue("i", latchTime));
+	PyObject* latchTimeObj = Py_BuildValue("i", latchTime);
+	if (PyObject_SetAttrString(module, "latchTime", latchTimeObj) < 0) {
+		PyErr_Print();  // Print error if setting attribute fails
+	}
+	Py_XDECREF(latchTimeObj);
 
-	// add a args variable to the interpreter
-	PyObject_SetAttrString(module, "args", EffectModule::json2python(_args));
+	// Add args variable to the interpreter
+	PyObject* argsObj = EffectModule::json2python(_args);
+	if (PyObject_SetAttrString(module, "args", argsObj) < 0) {
+		PyErr_Print();  // Print error if setting attribute fails
+	}
+	Py_XDECREF(argsObj);
 
-	// decref the module
+	// Decrement module reference
 	Py_XDECREF(module);
+
+	return true;
 }
 
 void Effect::run()
 {
 	PythonProgram program(_name, _log);
 
-	setModuleParameters();
+#if (PY_VERSION_HEX < 0x030C0000)
+	PyThreadState* prev_thread_state = PyThreadState_Swap(program);
+#endif
+
+	if (!setModuleParameters())
+	{
+		Error(_log, "Failed to set Module parameters. Effect will not be executed.");
+#if (PY_VERSION_HEX < 0x030C0000)
+		PyThreadState_Swap(prev_thread_state);
+#endif
+		return;
+	}
+
+#if (PY_VERSION_HEX < 0x030C0000)
+	PyThreadState_Swap(prev_thread_state);
+#endif
 
 	// Set the end time if applicable
 	if (_timeout > 0)
@@ -104,7 +144,7 @@ void Effect::run()
 	}
 
 	// Run the effect script
-	QFile file (_script);
+	QFile file(_script);
 	if (file.open(QIODevice::ReadOnly))
 	{
 		program.execute(file.readAll());

libsrc/effectengine/EffectModule.cpp

@@ -17,25 +17,81 @@
 #include <QNetworkAccessManager>
 #include <QEventLoop>
 
+// Define a struct for per-interpreter state
+typedef struct {
+} hyperion_module_state;
+
+// Macro to access the module state
+#define GET_HYPERION_STATE(module) ((hyperion_module_state*)PyModule_GetState(module))
+
 // Get the effect from the capsule
 #define getEffect() static_cast<Effect*>((Effect*)PyCapsule_Import("hyperion.__effectObj", 0))
 
-// create the hyperion module
-struct PyModuleDef EffectModule::moduleDef = {
-	PyModuleDef_HEAD_INIT,
-	"hyperion",            /* m_name */
-	"Hyperion module",     /* m_doc */
-	-1,                    /* m_size */
-	EffectModule::effectMethods, /* m_methods */
-	NULL,                  /* m_reload */
-	NULL,                  /* m_traverse */
-	NULL,                  /* m_clear */
-	NULL,                  /* m_free */
+// Module execution function for multi-phase init
+static int hyperion_exec(PyObject* module) {
+	// Initialize per-interpreter state
+	hyperion_module_state* state = GET_HYPERION_STATE(module);
+	if (state == NULL)
+	{
+		return -1;
+	}
+	return 0;
+}
+
+// Module creation function for multi-phase init, used in Py_mod_create slot
+static PyObject* hyperion_create(PyModuleDef* def, PyObject* args) {
+	PyObject* module = PyModule_Create(def);
+	if (!module)
+	{
+		return NULL;
+	}
+
+	// Execute any additional module initialization logic
+	if (hyperion_exec(module) < 0)
+	{
+		Py_DECREF(module);
+		return NULL;
+	}
+
+	return module;
+}
+
+// Module deallocation function to clean up per-interpreter state
+static void hyperion_free(void* module)
+{
+	// No specific cleanup required in this example
+}
+
+static PyModuleDef_Slot hyperion_slots[] = {
+	{Py_mod_exec, hyperion_exec},
+#if (PY_VERSION_HEX >= 0x030C0000)
+	{Py_mod_multiple_interpreters, Py_MOD_PER_INTERPRETER_GIL_SUPPORTED},
+#endif
+	{0, NULL}
 };
 
-PyObject* EffectModule::PyInit_hyperion()
+// Module definition with multi-phase and per-interpreter state
+static struct PyModuleDef hyperion_module = {
+	PyModuleDef_HEAD_INIT,
+	"hyperion",                    // Module name
+	"Hyperion module",             // Module docstring
+	sizeof(hyperion_module_state), // Size of per-interpreter state
+	EffectModule::effectMethods,   // Methods array
+	NULL,                          // Slots array (will be added in PyInit_hyperion)
+	NULL,                          // Traverse function (optional)
+	NULL,                          // Clear function (optional)
+	hyperion_free                  // Free function
+};
+
+// initialize function for the hyperion module
+PyMODINIT_FUNC PyInit_hyperion(void)
 {
-	return PyModule_Create(&moduleDef);
+
+	// assign slots to the module definition
+	hyperion_module.m_slots = hyperion_slots;
+
+	// return a new module definition instance
+	return PyModuleDef_Init(&hyperion_module);
 }
 
 void EffectModule::registerHyperionExtensionModule()
@@ -43,54 +99,77 @@ void EffectModule::registerHyperionExtensionModule()
 	PyImport_AppendInittab("hyperion", &PyInit_hyperion);
 }
 
-PyObject *EffectModule::json2python(const QJsonValue &jsonData)
+PyObject* EffectModule::json2python(const QJsonValue& jsonData)
 {
 	switch (jsonData.type())
 	{
 	case QJsonValue::Null:
 		Py_RETURN_NONE;
+
 	case QJsonValue::Undefined:
 		Py_RETURN_NOTIMPLEMENTED;
+
 	case QJsonValue::Double:
 	{
-			double doubleIntegratlPart;
-			double doubleFractionalPart = std::modf(jsonData.toDouble(), &doubleIntegratlPart);
-			if (doubleFractionalPart > std::numeric_limits<double>::epsilon())
+		double value = jsonData.toDouble();
+		if (value == static_cast<int>(value))  // If no fractional part, value is equal to its integer representation
 		{
-				return Py_BuildValue("d", jsonData.toDouble());
+			return Py_BuildValue("i", static_cast<int>(value));
 		}
-			return Py_BuildValue("i", jsonData.toInt());
+		return Py_BuildValue("d", value);
 	}
+
 	case QJsonValue::Bool:
-			return Py_BuildValue("i", jsonData.toBool() ? 1 : 0);
+		return PyBool_FromLong(jsonData.toBool() ? 1 : 0);
+
 	case QJsonValue::String:
-			return Py_BuildValue("s", jsonData.toString().toUtf8().constData());
-		case QJsonValue::Object:
-		{
-			PyObject * dict= PyDict_New();
-			QJsonObject objectData = jsonData.toObject();
-			for (QJsonObject::iterator i = objectData.begin(); i != objectData.end(); ++i)
-			{
-				PyObject * obj = json2python(*i);
-				PyDict_SetItemString(dict, i.key().toStdString().c_str(), obj);
-				Py_XDECREF(obj);
-			}
-			return dict;
-		}
+		return PyUnicode_FromString(jsonData.toString().toUtf8().constData());
+
 	case QJsonValue::Array:
 	{
 		QJsonArray arrayData = jsonData.toArray();
-			PyObject * list = PyList_New(arrayData.size());
+		PyObject* list = PyList_New(arrayData.size());
 		int index = 0;
 		for (QJsonArray::iterator i = arrayData.begin(); i != arrayData.end(); ++i, ++index)
 		{
-				PyObject * obj = json2python(*i);
+			PyObject* obj = json2python(*i);
 			Py_INCREF(obj);
 			PyList_SetItem(list, index, obj);
 			Py_XDECREF(obj);
 		}
 		return list;
 	}
+
+	case QJsonValue::Object: {
+		// Python's dict
+		QJsonObject jsonObject = jsonData.toObject();
+		PyObject* pyDict = PyDict_New();
+		for (auto it = jsonObject.begin(); it != jsonObject.end(); ++it) {
+			// Convert key
+			PyObject* pyKey = PyUnicode_FromString(it.key().toUtf8().constData());
+			if (!pyKey) {
+				Py_XDECREF(pyDict);
+				return nullptr;  // Error occurred, return null
+			}
+			// Convert value
+			PyObject* pyValue = json2python(it.value());
+			if (!pyValue) {
+				Py_XDECREF(pyKey);
+				Py_XDECREF(pyDict);
+				return nullptr;  // Error occurred, return null
+			}
+			// Add to dictionary
+			PyDict_SetItem(pyDict, pyKey, pyValue);
+			Py_XDECREF(pyKey);
+			Py_XDECREF(pyValue);
+		}
+		return pyDict;
+	}
+
+	default:
+		// Unsupported type
+		PyErr_SetString(PyExc_TypeError, "Unsupported QJsonValue type.");
+		return nullptr;
 	}
 
 	assert(false);
@@ -126,7 +205,7 @@ PyMethodDef EffectModule::effectMethods[] = {
 	{NULL, NULL, 0, NULL}
 };
 
-PyObject* EffectModule::wrapSetColor(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapSetColor(PyObject* self, PyObject* args)
 {
 	// check the number of arguments
 	int argCount = PyTuple_Size(args);
@@ -138,7 +217,7 @@ PyObject* EffectModule::wrapSetColor(PyObject *self, PyObject *args)
 		{
 			getEffect()->_colors.fill(color);
 			QVector<ColorRgb> _cQV = getEffect()->_colors;
-			emit getEffect()->setInput(getEffect()->_priority, std::vector<ColorRgb>( _cQV.begin(), _cQV.end() ), getEffect()->getRemaining(), false);
+			emit getEffect()->setInput(getEffect()->_priority, std::vector<ColorRgb>(_cQV.begin(), _cQV.end()), getEffect()->getRemaining(), false);
 			Py_RETURN_NONE;
 		}
 		return nullptr;
@@ -146,7 +225,7 @@ PyObject* EffectModule::wrapSetColor(PyObject *self, PyObject *args)
 	else if (argCount == 1)
 	{
 		// bytearray of values
-		PyObject * bytearray = nullptr;
+		PyObject* bytearray = nullptr;
 		if (PyArg_ParseTuple(args, "O", &bytearray))
 		{
 			if (PyByteArray_Check(bytearray))
@@ -154,10 +233,10 @@ PyObject* EffectModule::wrapSetColor(PyObject *self, PyObject *args)
 				size_t length = PyByteArray_Size(bytearray);
 				if (length == 3 * static_cast<size_t>(getEffect()->_hyperion->getLedCount()))
 				{
-					char * data = PyByteArray_AS_STRING(bytearray);
+					char* data = PyByteArray_AS_STRING(bytearray);
 					memcpy(getEffect()->_colors.data(), data, length);
 					QVector<ColorRgb> _cQV = getEffect()->_colors;
-					emit getEffect()->setInput(getEffect()->_priority, std::vector<ColorRgb>( _cQV.begin(), _cQV.end() ), getEffect()->getRemaining(), false);
+					emit getEffect()->setInput(getEffect()->_priority, std::vector<ColorRgb>(_cQV.begin(), _cQV.end()), getEffect()->getRemaining(), false);
 					Py_RETURN_NONE;
 				}
 				else
@@ -184,12 +263,12 @@ PyObject* EffectModule::wrapSetColor(PyObject *self, PyObject *args)
 	}
 }
 
-PyObject* EffectModule::wrapSetImage(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapSetImage(PyObject* self, PyObject* args)
 {
 	// bytearray of values
 	int width = 0;
 	int height = 0;
-	PyObject * bytearray = nullptr;
+	PyObject* bytearray = nullptr;
 	if (PyArg_ParseTuple(args, "iiO", &width, &height, &bytearray))
 	{
 		if (PyByteArray_Check(bytearray))
@@ -198,7 +277,7 @@ PyObject* EffectModule::wrapSetImage(PyObject *self, PyObject *args)
 			if (length == 3 * width * height)
 			{
 				Image<ColorRgb> image(width, height);
-				char * data = PyByteArray_AS_STRING(bytearray);
+				char* data = PyByteArray_AS_STRING(bytearray);
 				memcpy(image.memptr(), data, length);
 				emit getEffect()->setInputImage(getEffect()->_priority, image, getEffect()->getRemaining(), false);
 				Py_RETURN_NONE;
@@ -225,11 +304,11 @@ PyObject* EffectModule::wrapSetImage(PyObject *self, PyObject *args)
 	return nullptr;
 }
 
-PyObject* EffectModule::wrapGetImage(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapGetImage(PyObject* self, PyObject* args)
 {
 	QBuffer buffer;
 	QImageReader reader;
-	char *source;
+	char* source;
 	int cropLeft = 0, cropTop = 0, cropRight = 0, cropBottom = 0;
 	int grayscale = false;
 
@@ -237,7 +316,7 @@ PyObject* EffectModule::wrapGetImage(PyObject *self, PyObject *args)
 	{
 		Q_INIT_RESOURCE(EffectEngine);
 
-		if(!PyArg_ParseTuple(args, "s|iiiip", &source, &cropLeft, &cropTop, &cropRight, &cropBottom, &grayscale))
+		if (!PyArg_ParseTuple(args, "s|iiiip", &source, &cropLeft, &cropTop, &cropRight, &cropBottom, &grayscale))
 		{
 			PyErr_SetString(PyExc_TypeError, "String required");
 			return nullptr;
@@ -246,8 +325,8 @@ PyObject* EffectModule::wrapGetImage(PyObject *self, PyObject *args)
 		const QUrl url = QUrl(source);
 		if (url.isValid())
 		{
-			QNetworkAccessManager *networkManager = new QNetworkAccessManager();
-			QNetworkReply * networkReply = networkManager->get(QNetworkRequest(url));
+			QNetworkAccessManager* networkManager = new QNetworkAccessManager();
+			QNetworkReply* networkReply = networkManager->get(QNetworkRequest(url));
 
 			QEventLoop eventLoop;
 			connect(networkReply, &QNetworkReply::finished, &eventLoop, &QEventLoop::quit);
@@ -269,7 +348,7 @@ PyObject* EffectModule::wrapGetImage(PyObject *self, PyObject *args)
 			QString file = QString::fromUtf8(source);
 
 			if (file.mid(0, 1) == ":")
-				file = ":/effects/"+file.mid(1);
+				file = ":/effects/" + file.mid(1);
 
 			reader.setDecideFormatFromContent(true);
 			reader.setFileName(file);
@@ -286,7 +365,7 @@ PyObject* EffectModule::wrapGetImage(PyObject *self, PyObject *args)
 
 	if (reader.canRead())
 	{
-		PyObject *result = PyList_New(reader.imageCount());
+		PyObject* result = PyList_New(reader.imageCount());
 
 		for (int i = 0; i < reader.imageCount(); ++i)
 		{
@@ -312,18 +391,18 @@ PyObject* EffectModule::wrapGetImage(PyObject *self, PyObject *args)
 				}
 
 				QByteArray binaryImage;
-				for (int i = 0; i<height; i++)
+				for (int i = 0; i < height; i++)
 				{
-					const QRgb *scanline = reinterpret_cast<const QRgb *>(qimage.scanLine(i));
-					const QRgb *end = scanline + qimage.width();
+					const QRgb* scanline = reinterpret_cast<const QRgb*>(qimage.scanLine(i));
+					const QRgb* end = scanline + qimage.width();
 					for (; scanline != end; scanline++)
 					{
-						binaryImage.append(!grayscale ? (char) qRed(scanline[0]) : (char) qGray(scanline[0]));
-						binaryImage.append(!grayscale ? (char) qGreen(scanline[1]) : (char) qGray(scanline[1]));
-						binaryImage.append(!grayscale ? (char) qBlue(scanline[2]) : (char) qGray(scanline[2]));
+						binaryImage.append(!grayscale ? (char)qRed(scanline[0]) : (char)qGray(scanline[0]));
+						binaryImage.append(!grayscale ? (char)qGreen(scanline[1]) : (char)qGray(scanline[1]));
+						binaryImage.append(!grayscale ? (char)qBlue(scanline[2]) : (char)qGray(scanline[2]));
 					}
 				}
-				PyList_SET_ITEM(result, i, Py_BuildValue("{s:i,s:i,s:O}", "imageWidth", width, "imageHeight", height, "imageData", PyByteArray_FromStringAndSize(binaryImage.constData(),binaryImage.size())));
+				PyList_SET_ITEM(result, i, Py_BuildValue("{s:i,s:i,s:O}", "imageWidth", width, "imageHeight", height, "imageData", PyByteArray_FromStringAndSize(binaryImage.constData(), binaryImage.size())));
 			}
 			else
 			{
@@ -341,13 +420,13 @@ PyObject* EffectModule::wrapGetImage(PyObject *self, PyObject *args)
 	}
 }
 
-PyObject* EffectModule::wrapAbort(PyObject *self, PyObject *)
+PyObject* EffectModule::wrapAbort(PyObject* self, PyObject*)
 {
 	return Py_BuildValue("i", getEffect()->isInterruptionRequested() ? 1 : 0);
 }
 
 
-PyObject* EffectModule::wrapImageShow(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageShow(PyObject* self, PyObject* args)
 {
 	int argCount = PyTuple_Size(args);
 	int imgId = -1;
@@ -357,27 +436,27 @@ PyObject* EffectModule::wrapImageShow(PyObject *self, PyObject *args)
 		argsOk = true;
 	}
 
-	if ( ! argsOk || (imgId>-1 && imgId >= getEffect()->_imageStack.size()))
+	if (!argsOk || (imgId > -1 && imgId >= getEffect()->_imageStack.size()))
 	{
 		return nullptr;
 	}
 
 
-	QImage * qimage = (imgId<0) ? &(getEffect()->_image) : &(getEffect()->_imageStack[imgId]);
+	QImage* qimage = (imgId < 0) ? &(getEffect()->_image) : &(getEffect()->_imageStack[imgId]);
 	int width = qimage->width();
 	int height = qimage->height();
 
 	Image<ColorRgb> image(width, height);
 	QByteArray binaryImage;
 
-	for (int i = 0; i<height; ++i)
+	for (int i = 0; i < height; ++i)
 	{
-		const QRgb * scanline = reinterpret_cast<const QRgb *>(qimage->scanLine(i));
-		for (int j = 0; j< width; ++j)
+		const QRgb* scanline = reinterpret_cast<const QRgb*>(qimage->scanLine(i));
+		for (int j = 0; j < width; ++j)
 		{
-			binaryImage.append((char) qRed(scanline[j]));
-			binaryImage.append((char) qGreen(scanline[j]));
-			binaryImage.append((char) qBlue(scanline[j]));
+			binaryImage.append((char)qRed(scanline[j]));
+			binaryImage.append((char)qGreen(scanline[j]));
+			binaryImage.append((char)qBlue(scanline[j]));
 		}
 	}
 
@@ -387,27 +466,27 @@ PyObject* EffectModule::wrapImageShow(PyObject *self, PyObject *args)
 	return Py_BuildValue("");
 }
 
-PyObject* EffectModule::wrapImageLinearGradient(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageLinearGradient(PyObject* self, PyObject* args)
 {
 	int argCount = PyTuple_Size(args);
-	PyObject * bytearray = nullptr;
+	PyObject* bytearray = nullptr;
 	int startRX = 0;
 	int startRY = 0;
 	int startX = 0;
 	int startY = 0;
 	int width = getEffect()->_imageSize.width();
-	int endX {width};
+	int endX{ width };
 	int height = getEffect()->_imageSize.height();
-	int endY {height};
+	int endY{ height };
 	int spread = 0;
 
 	bool argsOK = false;
 
-	if ( argCount == 10 && PyArg_ParseTuple(args, "iiiiiiiiOi", &startRX, &startRY, &width, &height, &startX, &startY, &endX, &endY, &bytearray, &spread) )
+	if (argCount == 10 && PyArg_ParseTuple(args, "iiiiiiiiOi", &startRX, &startRY, &width, &height, &startX, &startY, &endX, &endY, &bytearray, &spread))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 6 && PyArg_ParseTuple(args, "iiiiOi", &startX, &startY, &endX, &endY, &bytearray, &spread) )
+	if (argCount == 6 && PyArg_ParseTuple(args, "iiiiOi", &startX, &startY, &endX, &endY, &bytearray, &spread))
 	{
 		argsOK = true;
 	}
@@ -420,19 +499,19 @@ PyObject* EffectModule::wrapImageLinearGradient(PyObject *self, PyObject *args)
 			const unsigned arrayItemLength = 5;
 			if (length % arrayItemLength == 0)
 			{
-				QRect myQRect(startRX,startRY,width,height);
-				QLinearGradient gradient(QPoint(startX,startY), QPoint(endX,endY));
-				char * data = PyByteArray_AS_STRING(bytearray);
+				QRect myQRect(startRX, startRY, width, height);
+				QLinearGradient gradient(QPoint(startX, startY), QPoint(endX, endY));
+				char* data = PyByteArray_AS_STRING(bytearray);
 
-				for (int idx=0; idx<length; idx+=arrayItemLength)
+				for (int idx = 0; idx < length; idx += arrayItemLength)
 				{
 					gradient.setColorAt(
-						((uint8_t)data[idx])/255.0,
+						((uint8_t)data[idx]) / 255.0,
 						QColor(
-							(uint8_t)(data[idx+1]),
-							(uint8_t)(data[idx+2]),
-							(uint8_t)(data[idx+3]),
-							(uint8_t)(data[idx+4])
+							(uint8_t)(data[idx + 1]),
+							(uint8_t)(data[idx + 2]),
+							(uint8_t)(data[idx + 3]),
+							(uint8_t)(data[idx + 4])
 						));
 				}
 
@@ -456,10 +535,10 @@ PyObject* EffectModule::wrapImageLinearGradient(PyObject *self, PyObject *args)
 	return nullptr;
 }
 
-PyObject* EffectModule::wrapImageConicalGradient(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageConicalGradient(PyObject* self, PyObject* args)
 {
 	int argCount = PyTuple_Size(args);
-	PyObject * bytearray = nullptr;
+	PyObject* bytearray = nullptr;
 	int centerX = 0;
 	int centerY = 0;
 	int angle = 0;
@@ -470,15 +549,15 @@ PyObject* EffectModule::wrapImageConicalGradient(PyObject *self, PyObject *args)
 
 	bool argsOK = false;
 
-	if ( argCount == 8 && PyArg_ParseTuple(args, "iiiiiiiO", &startX, &startY, &width, &height, &centerX, &centerY, &angle, &bytearray) )
+	if (argCount == 8 && PyArg_ParseTuple(args, "iiiiiiiO", &startX, &startY, &width, &height, &centerX, &centerY, &angle, &bytearray))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 4 && PyArg_ParseTuple(args, "iiiO", &centerX, &centerY, &angle, &bytearray) )
+	if (argCount == 4 && PyArg_ParseTuple(args, "iiiO", &centerX, &centerY, &angle, &bytearray))
 	{
 		argsOK = true;
 	}
-	angle = qMax(qMin(angle,360),0);
+	angle = qMax(qMin(angle, 360), 0);
 
 	if (argsOK)
 	{
@@ -488,19 +567,19 @@ PyObject* EffectModule::wrapImageConicalGradient(PyObject *self, PyObject *args)
 			const unsigned arrayItemLength = 5;
 			if (length % arrayItemLength == 0)
 			{
-				QRect myQRect(startX,startY,width,height);
-				QConicalGradient gradient(QPoint(centerX,centerY), angle );
-				char * data = PyByteArray_AS_STRING(bytearray);
+				QRect myQRect(startX, startY, width, height);
+				QConicalGradient gradient(QPoint(centerX, centerY), angle);
+				char* data = PyByteArray_AS_STRING(bytearray);
 
-				for (int idx=0; idx<length; idx+=arrayItemLength)
+				for (int idx = 0; idx < length; idx += arrayItemLength)
 				{
 					gradient.setColorAt(
-						((uint8_t)data[idx])/255.0,
+						((uint8_t)data[idx]) / 255.0,
 						QColor(
-							(uint8_t)(data[idx+1]),
-							(uint8_t)(data[idx+2]),
-							(uint8_t)(data[idx+3]),
-							(uint8_t)(data[idx+4])
+							(uint8_t)(data[idx + 1]),
+							(uint8_t)(data[idx + 2]),
+							(uint8_t)(data[idx + 3]),
+							(uint8_t)(data[idx + 4])
 						));
 				}
 
@@ -524,16 +603,16 @@ PyObject* EffectModule::wrapImageConicalGradient(PyObject *self, PyObject *args)
 }
 
 
-PyObject* EffectModule::wrapImageRadialGradient(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageRadialGradient(PyObject* self, PyObject* args)
 {
 	int argCount = PyTuple_Size(args);
-	PyObject * bytearray = nullptr;
+	PyObject* bytearray = nullptr;
 	int centerX = 0;
 	int centerY = 0;
 	int radius = 0;
 	int focalX = 0;
 	int focalY = 0;
-	int focalRadius =0;
+	int focalRadius = 0;
 	int spread = 0;
 	int startX = 0;
 	int startY = 0;
@@ -542,22 +621,22 @@ PyObject* EffectModule::wrapImageRadialGradient(PyObject *self, PyObject *args)
 
 	bool argsOK = false;
 
-	if ( argCount == 12 && PyArg_ParseTuple(args, "iiiiiiiiiiOi", &startX, &startY, &width, &height, &centerX, &centerY, &radius, &focalX, &focalY, &focalRadius, &bytearray, &spread) )
+	if (argCount == 12 && PyArg_ParseTuple(args, "iiiiiiiiiiOi", &startX, &startY, &width, &height, &centerX, &centerY, &radius, &focalX, &focalY, &focalRadius, &bytearray, &spread))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 9 && PyArg_ParseTuple(args, "iiiiiiiOi", &startX, &startY, &width, &height, &centerX, &centerY, &radius, &bytearray, &spread) )
+	if (argCount == 9 && PyArg_ParseTuple(args, "iiiiiiiOi", &startX, &startY, &width, &height, &centerX, &centerY, &radius, &bytearray, &spread))
 	{
 		argsOK = true;
 		focalX = centerX;
 		focalY = centerY;
 		focalRadius = radius;
 	}
-	if ( argCount == 8 && PyArg_ParseTuple(args, "iiiiiiOi", &centerX, &centerY, &radius, &focalX, &focalY, &focalRadius, &bytearray, &spread) )
+	if (argCount == 8 && PyArg_ParseTuple(args, "iiiiiiOi", &centerX, &centerY, &radius, &focalX, &focalY, &focalRadius, &bytearray, &spread))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 5 && PyArg_ParseTuple(args, "iiiOi", &centerX, &centerY, &radius, &bytearray, &spread) )
+	if (argCount == 5 && PyArg_ParseTuple(args, "iiiOi", &centerX, &centerY, &radius, &bytearray, &spread))
 	{
 		argsOK = true;
 		focalX = centerX;
@@ -573,18 +652,18 @@ PyObject* EffectModule::wrapImageRadialGradient(PyObject *self, PyObject *args)
 			if (length % 4 == 0)
 			{
 
-				QRect myQRect(startX,startY,width,height);
-				QRadialGradient gradient(QPoint(centerX,centerY), qMax(radius,0) );
-				char * data = PyByteArray_AS_STRING(bytearray);
+				QRect myQRect(startX, startY, width, height);
+				QRadialGradient gradient(QPoint(centerX, centerY), qMax(radius, 0));
+				char* data = PyByteArray_AS_STRING(bytearray);
 
-				for (int idx=0; idx<length; idx+=4)
+				for (int idx = 0; idx < length; idx += 4)
 				{
 					gradient.setColorAt(
-						((uint8_t)data[idx])/255.0,
+						((uint8_t)data[idx]) / 255.0,
 						QColor(
-							(uint8_t)(data[idx+1]),
-							(uint8_t)(data[idx+2]),
-							(uint8_t)(data[idx+3])
+							(uint8_t)(data[idx + 1]),
+							(uint8_t)(data[idx + 2]),
+							(uint8_t)(data[idx + 3])
 						));
 				}
 
@@ -608,9 +687,9 @@ PyObject* EffectModule::wrapImageRadialGradient(PyObject *self, PyObject *args)
 	return nullptr;
 }
 
-PyObject* EffectModule::wrapImageDrawPolygon(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageDrawPolygon(PyObject* self, PyObject* args)
 {
-	PyObject * bytearray = nullptr;
+	PyObject* bytearray = nullptr;
 
 	int argCount = PyTuple_Size(args);
 	int r = 0;
@@ -620,11 +699,11 @@ PyObject* EffectModule::wrapImageDrawPolygon(PyObject *self, PyObject *args)
 
 	bool argsOK = false;
 
-	if ( argCount == 5 && PyArg_ParseTuple(args, "Oiiii", &bytearray, &r, &g, &b, &a) )
+	if (argCount == 5 && PyArg_ParseTuple(args, "Oiiii", &bytearray, &r, &g, &b, &a))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 4 && PyArg_ParseTuple(args, "Oiii", &bytearray, &r, &g, &b) )
+	if (argCount == 4 && PyArg_ParseTuple(args, "Oiii", &bytearray, &r, &g, &b))
 	{
 		argsOK = true;
 	}
@@ -637,18 +716,18 @@ PyObject* EffectModule::wrapImageDrawPolygon(PyObject *self, PyObject *args)
 			if (length % 2 == 0)
 			{
 				QVector <QPoint> points;
-				char * data = PyByteArray_AS_STRING(bytearray);
+				char* data = PyByteArray_AS_STRING(bytearray);
 
-				for (int idx=0; idx<length; idx+=2)
+				for (int idx = 0; idx < length; idx += 2)
 				{
-					points.append(QPoint((int)(data[idx]),(int)(data[idx+1])));
+					points.append(QPoint((int)(data[idx]), (int)(data[idx + 1])));
 				}
 
-				QPainter * painter = getEffect()->_painter;
+				QPainter* painter = getEffect()->_painter;
 				QPen oldPen = painter->pen();
-				QPen newPen(QColor(r,g,b,a));
+				QPen newPen(QColor(r, g, b, a));
 				painter->setPen(newPen);
-				painter->setBrush(QBrush(QColor(r,g,b,a), Qt::SolidPattern));
+				painter->setBrush(QBrush(QColor(r, g, b, a), Qt::SolidPattern));
 				painter->drawPolygon(points);
 				painter->setPen(oldPen);
 				Py_RETURN_NONE;
@@ -668,9 +747,9 @@ PyObject* EffectModule::wrapImageDrawPolygon(PyObject *self, PyObject *args)
 	return nullptr;
 }
 
-PyObject* EffectModule::wrapImageDrawPie(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageDrawPie(PyObject* self, PyObject* args)
 {
-	PyObject * bytearray = nullptr;
+	PyObject* bytearray = nullptr;
 
 	QString brush;
 	int argCount = PyTuple_Size(args);
@@ -686,30 +765,30 @@ PyObject* EffectModule::wrapImageDrawPie(PyObject *self, PyObject *args)
 
 	bool argsOK = false;
 
-	if ( argCount == 9 && PyArg_ParseTuple(args, "iiiiiiiii", &centerX, &centerY, &radius, &startAngle, &spanAngle, &r, &g, &b, &a) )
+	if (argCount == 9 && PyArg_ParseTuple(args, "iiiiiiiii", &centerX, &centerY, &radius, &startAngle, &spanAngle, &r, &g, &b, &a))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 8 && PyArg_ParseTuple(args, "iiiiiiii", &centerX, &centerY, &radius, &startAngle, &spanAngle, &r, &g, &b) )
+	if (argCount == 8 && PyArg_ParseTuple(args, "iiiiiiii", &centerX, &centerY, &radius, &startAngle, &spanAngle, &r, &g, &b))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 7 && PyArg_ParseTuple(args, "iiiiisO", &centerX, &centerY, &radius, &startAngle, &spanAngle, &brush, &bytearray) )
+	if (argCount == 7 && PyArg_ParseTuple(args, "iiiiisO", &centerX, &centerY, &radius, &startAngle, &spanAngle, &brush, &bytearray))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 5 && PyArg_ParseTuple(args, "iiisO", &centerX, &centerY, &radius, &brush, &bytearray) )
+	if (argCount == 5 && PyArg_ParseTuple(args, "iiisO", &centerX, &centerY, &radius, &brush, &bytearray))
 	{
 		argsOK = true;
 	}
 
 	if (argsOK)
 	{
-		QPainter * painter = getEffect()->_painter;
-		startAngle = qMax(qMin(startAngle,360),0);
-		spanAngle = qMax(qMin(spanAngle,360),-360);
+		QPainter* painter = getEffect()->_painter;
+		startAngle = qMax(qMin(startAngle, 360), 0);
+		spanAngle = qMax(qMin(spanAngle, 360), -360);
 
-		if( argCount == 7 || argCount == 5 )
+		if (argCount == 7 || argCount == 5)
 		{
 			a = 0;
 			if (PyByteArray_Check(bytearray))
@@ -718,20 +797,20 @@ PyObject* EffectModule::wrapImageDrawPie(PyObject *self, PyObject *args)
 				if (length % 5 == 0)
 				{
 
-						QConicalGradient gradient(QPoint(centerX,centerY), startAngle);
+					QConicalGradient gradient(QPoint(centerX, centerY), startAngle);
 
 
-					char * data = PyByteArray_AS_STRING(bytearray);
+					char* data = PyByteArray_AS_STRING(bytearray);
 
-					for (int idx=0; idx<length; idx+=5)
+					for (int idx = 0; idx < length; idx += 5)
 					{
 						gradient.setColorAt(
-							((uint8_t)data[idx])/255.0,
+							((uint8_t)data[idx]) / 255.0,
 							QColor(
-								(uint8_t)(data[idx+1]),
-								(uint8_t)(data[idx+2]),
-								(uint8_t)(data[idx+3]),
-								(uint8_t)(data[idx+4])
+								(uint8_t)(data[idx + 1]),
+								(uint8_t)(data[idx + 2]),
+								(uint8_t)(data[idx + 3]),
+								(uint8_t)(data[idx + 4])
 							));
 					}
 					painter->setBrush(gradient);
@@ -752,10 +831,10 @@ PyObject* EffectModule::wrapImageDrawPie(PyObject *self, PyObject *args)
 		}
 		else
 		{
-			painter->setBrush(QBrush(QColor(r,g,b,a), Qt::SolidPattern));
+			painter->setBrush(QBrush(QColor(r, g, b, a), Qt::SolidPattern));
 		}
 		QPen oldPen = painter->pen();
-		QPen newPen(QColor(r,g,b,a));
+		QPen newPen(QColor(r, g, b, a));
 		painter->setPen(newPen);
 		painter->drawPie(centerX - radius, centerY - radius, centerX + radius, centerY + radius, startAngle * 16, spanAngle * 16);
 		painter->setPen(oldPen);
@@ -764,7 +843,7 @@ PyObject* EffectModule::wrapImageDrawPie(PyObject *self, PyObject *args)
 	return nullptr;
 }
 
-PyObject* EffectModule::wrapImageSolidFill(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageSolidFill(PyObject* self, PyObject* args)
 {
 	int argCount = PyTuple_Size(args);
 	int r = 0;
@@ -778,34 +857,34 @@ PyObject* EffectModule::wrapImageSolidFill(PyObject *self, PyObject *args)
 
 	bool argsOK = false;
 
-	if ( argCount == 8 && PyArg_ParseTuple(args, "iiiiiiii", &startX, &startY, &width, &height, &r, &g, &b, &a) )
+	if (argCount == 8 && PyArg_ParseTuple(args, "iiiiiiii", &startX, &startY, &width, &height, &r, &g, &b, &a))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 7 && PyArg_ParseTuple(args, "iiiiiii", &startX, &startY, &width, &height, &r, &g, &b) )
+	if (argCount == 7 && PyArg_ParseTuple(args, "iiiiiii", &startX, &startY, &width, &height, &r, &g, &b))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 4 && PyArg_ParseTuple(args, "iiii",&r, &g, &b, &a) )
+	if (argCount == 4 && PyArg_ParseTuple(args, "iiii", &r, &g, &b, &a))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 3 && PyArg_ParseTuple(args, "iii",&r, &g, &b) )
+	if (argCount == 3 && PyArg_ParseTuple(args, "iii", &r, &g, &b))
 	{
 		argsOK = true;
 	}
 
 	if (argsOK)
 	{
-		QRect myQRect(startX,startY,width,height);
-		getEffect()->_painter->fillRect(myQRect, QColor(r,g,b,a));
+		QRect myQRect(startX, startY, width, height);
+		getEffect()->_painter->fillRect(myQRect, QColor(r, g, b, a));
 		Py_RETURN_NONE;
 	}
 	return nullptr;
 }
 
 
-PyObject* EffectModule::wrapImageDrawLine(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageDrawLine(PyObject* self, PyObject* args)
 {
 	int argCount = PyTuple_Size(args);
 	int r = 0;
@@ -820,21 +899,21 @@ PyObject* EffectModule::wrapImageDrawLine(PyObject *self, PyObject *args)
 
 	bool argsOK = false;
 
-	if ( argCount == 9 && PyArg_ParseTuple(args, "iiiiiiiii", &startX, &startY, &endX, &endY, &thick, &r, &g, &b, &a) )
+	if (argCount == 9 && PyArg_ParseTuple(args, "iiiiiiiii", &startX, &startY, &endX, &endY, &thick, &r, &g, &b, &a))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 8 && PyArg_ParseTuple(args, "iiiiiiii", &startX, &startY, &endX, &endY, &thick, &r, &g, &b) )
+	if (argCount == 8 && PyArg_ParseTuple(args, "iiiiiiii", &startX, &startY, &endX, &endY, &thick, &r, &g, &b))
 	{
 		argsOK = true;
 	}
 
 	if (argsOK)
 	{
-		QPainter * painter = getEffect()->_painter;
+		QPainter* painter = getEffect()->_painter;
 		QRect myQRect(startX, startY, endX, endY);
 		QPen oldPen = painter->pen();
-		QPen newPen(QColor(r,g,b,a));
+		QPen newPen(QColor(r, g, b, a));
 		newPen.setWidth(thick);
 		painter->setPen(newPen);
 		painter->drawLine(startX, startY, endX, endY);
@@ -845,7 +924,7 @@ PyObject* EffectModule::wrapImageDrawLine(PyObject *self, PyObject *args)
 	return nullptr;
 }
 
-PyObject* EffectModule::wrapImageDrawPoint(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageDrawPoint(PyObject* self, PyObject* args)
 {
 	int argCount = PyTuple_Size(args);
 	int r = 0;
@@ -858,20 +937,20 @@ PyObject* EffectModule::wrapImageDrawPoint(PyObject *self, PyObject *args)
 
 	bool argsOK = false;
 
-	if ( argCount == 7 && PyArg_ParseTuple(args, "iiiiiii", &x, &y, &thick, &r, &g, &b, &a) )
+	if (argCount == 7 && PyArg_ParseTuple(args, "iiiiiii", &x, &y, &thick, &r, &g, &b, &a))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 6 && PyArg_ParseTuple(args, "iiiiii", &x, &y, &thick, &r, &g, &b) )
+	if (argCount == 6 && PyArg_ParseTuple(args, "iiiiii", &x, &y, &thick, &r, &g, &b))
 	{
 		argsOK = true;
 	}
 
 	if (argsOK)
 	{
-		QPainter * painter = getEffect()->_painter;
+		QPainter* painter = getEffect()->_painter;
 		QPen oldPen = painter->pen();
-		QPen newPen(QColor(r,g,b,a));
+		QPen newPen(QColor(r, g, b, a));
 		newPen.setWidth(thick);
 		painter->setPen(newPen);
 		painter->drawPoint(x, y);
@@ -882,7 +961,7 @@ PyObject* EffectModule::wrapImageDrawPoint(PyObject *self, PyObject *args)
 	return nullptr;
 }
 
-PyObject* EffectModule::wrapImageDrawRect(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageDrawRect(PyObject* self, PyObject* args)
 {
 	int argCount = PyTuple_Size(args);
 	int r = 0;
@@ -897,21 +976,21 @@ PyObject* EffectModule::wrapImageDrawRect(PyObject *self, PyObject *args)
 
 	bool argsOK = false;
 
-	if ( argCount == 9 && PyArg_ParseTuple(args, "iiiiiiiii", &startX, &startY, &width, &height, &thick, &r, &g, &b, &a) )
+	if (argCount == 9 && PyArg_ParseTuple(args, "iiiiiiiii", &startX, &startY, &width, &height, &thick, &r, &g, &b, &a))
 	{
 		argsOK = true;
 	}
-	if ( argCount == 8 && PyArg_ParseTuple(args, "iiiiiiii", &startX, &startY, &width, &height, &thick, &r, &g, &b) )
+	if (argCount == 8 && PyArg_ParseTuple(args, "iiiiiiii", &startX, &startY, &width, &height, &thick, &r, &g, &b))
 	{
 		argsOK = true;
 	}
 
 	if (argsOK)
 	{
-		QPainter * painter = getEffect()->_painter;
-		QRect myQRect(startX,startY,width,height);
+		QPainter* painter = getEffect()->_painter;
+		QRect myQRect(startX, startY, width, height);
 		QPen oldPen = painter->pen();
-		QPen newPen(QColor(r,g,b,a));
+		QPen newPen(QColor(r, g, b, a));
 		newPen.setWidth(thick);
 		painter->setPen(newPen);
 		painter->drawRect(startX, startY, width, height);
@@ -923,7 +1002,7 @@ PyObject* EffectModule::wrapImageDrawRect(PyObject *self, PyObject *args)
 }
 
 
-PyObject* EffectModule::wrapImageSetPixel(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageSetPixel(PyObject* self, PyObject* args)
 {
 	int argCount = PyTuple_Size(args);
 	int r = 0;
@@ -932,9 +1011,9 @@ PyObject* EffectModule::wrapImageSetPixel(PyObject *self, PyObject *args)
 	int x = 0;
 	int y = 0;
 
-	if ( argCount == 5 && PyArg_ParseTuple(args, "iiiii", &x, &y, &r, &g, &b ) )
+	if (argCount == 5 && PyArg_ParseTuple(args, "iiiii", &x, &y, &r, &g, &b))
 	{
-		getEffect()->_image.setPixel(x,y,qRgb(r,g,b));
+		getEffect()->_image.setPixel(x, y, qRgb(r, g, b));
 		Py_RETURN_NONE;
 	}
 
@@ -942,29 +1021,29 @@ PyObject* EffectModule::wrapImageSetPixel(PyObject *self, PyObject *args)
 }
 
 
-PyObject* EffectModule::wrapImageGetPixel(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageGetPixel(PyObject* self, PyObject* args)
 {
 	int argCount = PyTuple_Size(args);
 	int x = 0;
 	int y = 0;
 
-	if ( argCount == 2 && PyArg_ParseTuple(args, "ii", &x, &y) )
+	if (argCount == 2 && PyArg_ParseTuple(args, "ii", &x, &y))
 	{
-		QRgb rgb = getEffect()->_image.pixel(x,y);
-		return Py_BuildValue("iii",qRed(rgb),qGreen(rgb),qBlue(rgb));
+		QRgb rgb = getEffect()->_image.pixel(x, y);
+		return Py_BuildValue("iii", qRed(rgb), qGreen(rgb), qBlue(rgb));
 	}
 	return nullptr;
 }
 
-PyObject* EffectModule::wrapImageSave(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageSave(PyObject* self, PyObject* args)
 {
 	QImage img(getEffect()->_image.copy());
 	getEffect()->_imageStack.append(img);
 
-	return Py_BuildValue("i", getEffect()->_imageStack.size()-1);
+	return Py_BuildValue("i", getEffect()->_imageStack.size() - 1);
 }
 
-PyObject* EffectModule::wrapImageMinSize(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageMinSize(PyObject* self, PyObject* args)
 {
 	int argCount = PyTuple_Size(args);
 	int w = 0;
@@ -972,13 +1051,13 @@ PyObject* EffectModule::wrapImageMinSize(PyObject *self, PyObject *args)
 	int width = getEffect()->_imageSize.width();
 	int height = getEffect()->_imageSize.height();
 
-	if ( argCount == 2 && PyArg_ParseTuple(args, "ii", &w, &h) )
+	if (argCount == 2 && PyArg_ParseTuple(args, "ii", &w, &h))
 	{
-		if (width<w || height<h)
+		if (width < w || height < h)
 		{
 			delete getEffect()->_painter;
 
-			getEffect()->_image = getEffect()->_image.scaled(qMax(width,w),qMax(height,h), Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
+			getEffect()->_image = getEffect()->_image.scaled(qMax(width, w), qMax(height, h), Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
 			getEffect()->_imageSize = getEffect()->_image.size();
 			getEffect()->_painter = new QPainter(&(getEffect()->_image));
 		}
@@ -987,60 +1066,60 @@ PyObject* EffectModule::wrapImageMinSize(PyObject *self, PyObject *args)
 	return nullptr;
 }
 
-PyObject* EffectModule::wrapImageWidth(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageWidth(PyObject* self, PyObject* args)
 {
 	return Py_BuildValue("i", getEffect()->_imageSize.width());
 }
 
-PyObject* EffectModule::wrapImageHeight(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageHeight(PyObject* self, PyObject* args)
 {
 	return Py_BuildValue("i", getEffect()->_imageSize.height());
 }
 
-PyObject* EffectModule::wrapImageCRotate(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageCRotate(PyObject* self, PyObject* args)
 {
 	int argCount = PyTuple_Size(args);
 	int angle;
 
-	if ( argCount == 1 && PyArg_ParseTuple(args, "i", &angle ) )
+	if (argCount == 1 && PyArg_ParseTuple(args, "i", &angle))
 	{
-		angle = qMax(qMin(angle,360),0);
+		angle = qMax(qMin(angle, 360), 0);
 		getEffect()->_painter->rotate(angle);
 		Py_RETURN_NONE;
 	}
 	return nullptr;
 }
 
-PyObject* EffectModule::wrapImageCOffset(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageCOffset(PyObject* self, PyObject* args)
 {
 	int offsetX = 0;
 	int offsetY = 0;
 	int argCount = PyTuple_Size(args);
 
-	if ( argCount == 2 )
+	if (argCount == 2)
 	{
-		PyArg_ParseTuple(args, "ii", &offsetX, &offsetY );
+		PyArg_ParseTuple(args, "ii", &offsetX, &offsetY);
 	}
 
-	getEffect()->_painter->translate(QPoint(offsetX,offsetY));
+	getEffect()->_painter->translate(QPoint(offsetX, offsetY));
 	Py_RETURN_NONE;
 }
 
-PyObject* EffectModule::wrapImageCShear(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageCShear(PyObject* self, PyObject* args)
 {
 	int sh = 0;
 	int sv = 0;
 	int argCount = PyTuple_Size(args);
 
-	if ( argCount == 2 && PyArg_ParseTuple(args, "ii", &sh, &sv ))
+	if (argCount == 2 && PyArg_ParseTuple(args, "ii", &sh, &sv))
 	{
-		getEffect()->_painter->shear(sh,sv);
+		getEffect()->_painter->shear(sh, sv);
 		Py_RETURN_NONE;
 	}
 	return nullptr;
 }
 
-PyObject* EffectModule::wrapImageResetT(PyObject *self, PyObject *args)
+PyObject* EffectModule::wrapImageResetT(PyObject* self, PyObject* args)
 {
 	getEffect()->_painter->resetTransform();
 	Py_RETURN_NONE;

libsrc/python/PythonInit.cpp

@@ -18,7 +18,7 @@
 #include <HyperionConfig.h>
 
 #ifdef _WIN32
-	#include <stdexcept>
+#include <stdexcept>
 #endif
 
 #define STRINGIFY2(x) #x
@@ -44,14 +44,14 @@ PythonInit::PythonInit()
 #if (PY_VERSION_HEX >= 0x03080000)
 	status = PyConfig_SetString(&config, &config.program_name, programName);
 	if (PyStatus_Exception(status)) {
-		goto exception;
+		handlePythonError(status, config);
+		return;
 	}
-	else
 #else
 	Py_SetProgramName(programName);
 #endif
 	{
-		// set Python module path when exists
+		// set Python module path when it exists
 		QString py_path = QDir::cleanPath(qApp->applicationDirPath() + "/../lib/python" + STRINGIFY(PYTHON_VERSION_MAJOR) + "." + STRINGIFY(PYTHON_VERSION_MINOR));
 		QString py_file = QDir::cleanPath(qApp->applicationDirPath() + "/python" + STRINGIFY(PYTHON_VERSION_MAJOR) + STRINGIFY(PYTHON_VERSION_MINOR) + ".zip");
 		QString py_framework = QDir::cleanPath(qApp->applicationDirPath() + "/../Frameworks/Python.framework/Versions/Current/lib/python" + STRINGIFY(PYTHON_VERSION_MAJOR) + "." + STRINGIFY(PYTHON_VERSION_MINOR));
@@ -68,12 +68,14 @@ PythonInit::PythonInit()
 #if (PY_VERSION_HEX >= 0x03080000)
 				status = PyConfig_SetBytesString(&config, &config.home, QSTRING_CSTR(py_file));
 				if (PyStatus_Exception(status)) {
-					goto exception;
+					handlePythonError(status, config);
+					return;
 				}
 				config.module_search_paths_set = 1;
 				status = PyWideStringList_Append(&config.module_search_paths, const_cast<wchar_t*>(py_file.toStdWString().c_str()));
 				if (PyStatus_Exception(status)) {
-					goto exception;
+					handlePythonError(status, config);
+					return;
 				}
 #else
 				Py_SetPythonHome(Py_DecodeLocale(py_file.toLatin1().data(), nullptr));
@@ -85,18 +87,21 @@ PythonInit::PythonInit()
 #if (PY_VERSION_HEX >= 0x03080000)
 				status = PyConfig_SetBytesString(&config, &config.home, QSTRING_CSTR(QDir::cleanPath(qApp->applicationDirPath() + "/../")));
 				if (PyStatus_Exception(status)) {
-					goto exception;
+					handlePythonError(status, config);
+					return;
 				}
 
 				config.module_search_paths_set = 1;
 				status = PyWideStringList_Append(&config.module_search_paths, const_cast<wchar_t*>(QDir(py_path).absolutePath().toStdWString().c_str()));
 				if (PyStatus_Exception(status)) {
-					goto exception;
+					handlePythonError(status, config);
+					return;
 				}
 
 				status = PyWideStringList_Append(&config.module_search_paths, const_cast<wchar_t*>(QDir(py_path + "/lib-dynload").absolutePath().toStdWString().c_str()));
 				if (PyStatus_Exception(status)) {
-					goto exception;
+					handlePythonError(status, config);
+					return;
 				}
 #else
 				QStringList python_paths;
@@ -114,18 +119,21 @@ PythonInit::PythonInit()
 #if (PY_VERSION_HEX >= 0x03080000)
 				status = PyConfig_SetBytesString(&config, &config.home, QSTRING_CSTR(QDir::cleanPath(qApp->applicationDirPath() + "/../Frameworks/Python.framework/Versions/Current")));
 				if (PyStatus_Exception(status)) {
-					goto exception;
+					handlePythonError(status, config);
+					return;
 				}
 
 				config.module_search_paths_set = 1;
 				status = PyWideStringList_Append(&config.module_search_paths, const_cast<wchar_t*>(QDir(py_framework).absolutePath().toStdWString().c_str()));
 				if (PyStatus_Exception(status)) {
-					goto exception;
+					handlePythonError(status, config);
+					return;
 				}
 
 				status = PyWideStringList_Append(&config.module_search_paths, const_cast<wchar_t*>(QDir(py_framework + "/lib-dynload").absolutePath().toStdWString().c_str()));
 				if (PyStatus_Exception(status)) {
-					goto exception;
+					handlePythonError(status, config);
+					return;
 				}
 #else
 				QStringList python_paths;
@@ -146,7 +154,8 @@ PythonInit::PythonInit()
 #if (PY_VERSION_HEX >= 0x03080000)
 	status = Py_InitializeFromConfig(&config);
 	if (PyStatus_Exception(status)) {
-		goto exception;
+		handlePythonError(status, config);
+		return;
 	}
 	PyConfig_Clear(&config);
 #endif
@@ -154,7 +163,8 @@ PythonInit::PythonInit()
 	// init Python
 	Debug(Logger::getInstance("DAEMON"), "Initializing Python interpreter");
 	Py_InitializeEx(0);
-	if ( !Py_IsInitialized() )
+
+	if (!Py_IsInitialized())
 	{
 		throw std::runtime_error("Initializing Python failed!");
 	}
@@ -165,20 +175,25 @@ PythonInit::PythonInit()
 #endif
 
 	mainThreadState = PyEval_SaveThread();
-	return;
+}
 
-#if (PY_VERSION_HEX >= 0x03080000)
-exception:
+// Error handling function to replace goto exception
+void PythonInit::handlePythonError(PyStatus status, PyConfig& config)
+{
 	Error(Logger::getInstance("DAEMON"), "Initializing Python config failed with error [%s]", status.err_msg);
 	PyConfig_Clear(&config);
-
 	throw std::runtime_error("Initializing Python failed!");
-#endif
 }
 
 PythonInit::~PythonInit()
 {
 	Debug(Logger::getInstance("DAEMON"), "Cleaning up Python interpreter");
+
+#if (PY_VERSION_HEX < 0x030C0000)
 	PyEval_RestoreThread(mainThreadState);
-	Py_Finalize();
+#else
+	PyThreadState_Swap(mainThreadState);
+#endif
+
+	int rc = Py_FinalizeEx();
 }

libsrc/python/PythonProgram.cpp

@@ -1,173 +1,184 @@
 #include <python/PythonProgram.h>
 #include <python/PythonUtils.h>
+
 #include <utils/Logger.h>
 
 #include <QThread>
 
 PyThreadState* mainThreadState;
 
-PythonProgram::PythonProgram(const QString & name, Logger * log) :
-	_name(name), _log(log), _tstate(nullptr)
+PythonProgram::PythonProgram(const QString& name, Logger* log) :
+	_name(name)
+	, _log(log)
+	, _tstate(nullptr)
 {
 	// we probably need to wait until mainThreadState is available
-	while(mainThreadState == nullptr){};
+	QThread::msleep(10);
+	while (mainThreadState == nullptr)
+	{
+		QThread::msleep(10);  // Wait with delay to avoid busy waiting
+	}
 
+	// Create a new subinterpreter for this thread
+#if (PY_VERSION_HEX < 0x030C0000)
 	// get global lock
 	PyEval_RestoreThread(mainThreadState);
-
-	// Initialize a new thread state
 	_tstate = Py_NewInterpreter();
-	if(_tstate == nullptr)
-	{
-#if (PY_VERSION_HEX >= 0x03020000)
-		PyThreadState_Swap(mainThreadState);
-		PyEval_SaveThread();
 #else
-		PyEval_ReleaseLock();
+	PyThreadState* prev = PyThreadState_Swap(NULL);
+
+	// Create a new interpreter configuration object
+	PyInterpreterConfig config{};
+
+	// Set configuration options
+	config.use_main_obmalloc = 0;
+	config.allow_fork = 0;
+	config.allow_exec = 0;
+	config.allow_threads = 1;
+	config.allow_daemon_threads = 0;
+	config.check_multi_interp_extensions = 1;
+	config.gil = PyInterpreterConfig_OWN_GIL;
+	Py_NewInterpreterFromConfig(&_tstate, &config);
 #endif
-		Error(_log, "Failed to get thread state for %s",QSTRING_CSTR(_name));
+
+	if (_tstate == nullptr)
+	{
+		PyThreadState_Swap(mainThreadState);
+#if (PY_VERSION_HEX < 0x030C0000)
+		PyEval_SaveThread();
+#endif
+		Error(_log, "Failed to get thread state for %s", QSTRING_CSTR(_name));
 		return;
 	}
+#if (PY_VERSION_HEX < 0x030C0000)
 	PyThreadState_Swap(_tstate);
+#endif
 }
 
 PythonProgram::~PythonProgram()
 {
 	if (!_tstate)
+	{
 		return;
-
-	// stop sub threads if needed
-	for (PyThreadState* s = PyInterpreterState_ThreadHead(_tstate->interp), *old = nullptr; s;)
-	{
-		if (s == _tstate)
-		{
-			s = s->next;
-			continue;
-		}
-		if (old != s)
-		{
-			Debug(_log,"ID %s: Waiting on thread %u", QSTRING_CSTR(_name), s->thread_id);
-			old = s;
 	}
 
-		Py_BEGIN_ALLOW_THREADS;
-		QThread::msleep(100);
-		Py_END_ALLOW_THREADS;
-
-		s = PyInterpreterState_ThreadHead(_tstate->interp);
-	}
+#if (PY_VERSION_HEX < 0x030C0000)
+	PyThreadState* prev_thread_state = PyThreadState_Swap(_tstate);
+#endif
 
 	// Clean up the thread state
 	Py_EndInterpreter(_tstate);
-#if (PY_VERSION_HEX >= 0x03020000)
-	PyThreadState_Swap(mainThreadState);
+
+#if (PY_VERSION_HEX < 0x030C0000)
+	PyThreadState_Swap(prev_thread_state);
 	PyEval_SaveThread();
-#else
-	PyEval_ReleaseLock();
 #endif
 }
 
-void PythonProgram::execute(const QByteArray & python_code)
+void PythonProgram::execute(const QByteArray& python_code)
 {
 	if (!_tstate)
+	{
 		return;
+	}
 
-	PyObject *main_module = PyImport_ImportModule("__main__"); // New Reference
-	PyObject *main_dict = PyModule_GetDict(main_module); // Borrowed reference
-	Py_INCREF(main_dict); // Incref "main_dict" to use it in PyRun_String(), because PyModule_GetDict() has decref "main_dict"
-	Py_DECREF(main_module); // // release "main_module" when done
-	PyObject *result = PyRun_String(python_code.constData(), Py_file_input, main_dict, main_dict); // New Reference
+	PyThreadState* prev_thread_state = PyThreadState_Swap(_tstate);
 
+	PyObject* main_module = PyImport_ImportModule("__main__");
+	if (!main_module)
+	{
+		// Restore the previous thread state
+#if (PY_VERSION_HEX < 0x030C0000)
+		PyThreadState_Swap(mainThreadState);
+#else
+		PyThreadState_Swap(prev_thread_state);
+#endif
+		return;
+	}
+
+	PyObject* main_dict = PyModule_GetDict(main_module);  // Borrowed reference to globals
+	PyObject* result = PyRun_String(python_code.constData(), Py_file_input, main_dict, main_dict);
 	if (!result)
 	{
-		if (PyErr_Occurred()) // Nothing needs to be done for a borrowed reference
+		if (PyErr_Occurred())
 		{
-			Error(_log,"###### PYTHON EXCEPTION ######");
-			Error(_log,"## In effect '%s'", QSTRING_CSTR(_name));
-			/* Objects all initialized to NULL for Py_XDECREF */
-			PyObject *errorType = NULL, *errorValue = NULL, *errorTraceback = NULL;
+			Error(_log, "###### PYTHON EXCEPTION ######");
+			Error(_log, "## In effect '%s'", QSTRING_CSTR(_name));
 
-			PyErr_Fetch(&errorType, &errorValue, &errorTraceback); // New Reference or NULL
+			PyObject* errorType = NULL, * errorValue = NULL, * errorTraceback = NULL;
+
+			PyErr_Fetch(&errorType, &errorValue, &errorTraceback);
 			PyErr_NormalizeException(&errorType, &errorValue, &errorTraceback);
 
-			// Extract exception message from "errorValue"
-			if(errorValue)
+			if (errorValue)
 			{
 				QString message;
-				if(PyObject_HasAttrString(errorValue, "__class__"))
+				if (PyObject_HasAttrString(errorValue, "__class__"))
 				{
-					PyObject *classPtr = PyObject_GetAttrString(errorValue, "__class__"); // New Reference
-					PyObject *class_name = NULL; /* Object "class_name" initialized to NULL for Py_XDECREF */
-					class_name = PyObject_GetAttrString(classPtr, "__name__"); // New Reference or NULL
+					PyObject* classPtr = PyObject_GetAttrString(errorValue, "__class__");
+					PyObject* class_name = classPtr ? PyObject_GetAttrString(classPtr, "__name__") : NULL;
 
-					if(class_name && PyUnicode_Check(class_name))
+					if (class_name && PyUnicode_Check(class_name))
 						message.append(PyUnicode_AsUTF8(class_name));
 
-					Py_DECREF(classPtr); // release "classPtr" when done
-					Py_XDECREF(class_name); // Use Py_XDECREF() to ignore NULL references
+					Py_XDECREF(class_name);
+					Py_DECREF(classPtr);
 				}
 
-				// Object "class_name" initialized to NULL for Py_XDECREF
-				PyObject *valueString = NULL;
-				valueString = PyObject_Str(errorValue); // New Reference or NULL
+				PyObject* valueString = PyObject_Str(errorValue);
 
-				if(valueString && PyUnicode_Check(valueString))
+				if (valueString && PyUnicode_Check(valueString))
 				{
-					if(!message.isEmpty())
+					if (!message.isEmpty())
 						message.append(": ");
-
 					message.append(PyUnicode_AsUTF8(valueString));
 				}
-				Py_XDECREF(valueString); // Use Py_XDECREF() to ignore NULL references
+				Py_XDECREF(valueString);
 
 				Error(_log, "## %s", QSTRING_CSTR(message));
 			}
 
-			// Extract exception message from "errorTraceback"
-			if(errorTraceback)
+			if (errorTraceback)
 			{
-				// Object "tracebackList" initialized to NULL for Py_XDECREF
-				PyObject *tracebackModule = NULL, *methodName = NULL, *tracebackList = NULL;
-				QString tracebackMsg;
+				PyObject* tracebackModule = PyImport_ImportModule("traceback");
+				PyObject* methodName = PyUnicode_FromString("format_exception");
+				PyObject* tracebackList = tracebackModule && methodName
+					? PyObject_CallMethodObjArgs(tracebackModule, methodName, errorType, errorValue, errorTraceback, NULL)
+					: NULL;
 
-				tracebackModule = PyImport_ImportModule("traceback"); // New Reference or NULL
-				methodName = PyUnicode_FromString("format_exception"); // New Reference or NULL
-				tracebackList = PyObject_CallMethodObjArgs(tracebackModule, methodName, errorType, errorValue, errorTraceback, NULL); // New Reference or NULL
-
-				if(tracebackList)
+				if (tracebackList)
 				{
-					PyObject* iterator = PyObject_GetIter(tracebackList); // New Reference
-
+					PyObject* iterator = PyObject_GetIter(tracebackList);
 					PyObject* item;
-					while( (item = PyIter_Next(iterator)) ) // New Reference
+					while ((item = PyIter_Next(iterator)))
 					{
-						Error(_log, "## %s",QSTRING_CSTR(QString(PyUnicode_AsUTF8(item)).trimmed()));
-						Py_DECREF(item); // release "item" when done
+						Error(_log, "## %s", QSTRING_CSTR(QString(PyUnicode_AsUTF8(item)).trimmed()));
+						Py_DECREF(item);
 					}
-					Py_DECREF(iterator);  // release "iterator" when done
+					Py_DECREF(iterator);
 				}
 
-				// Use Py_XDECREF() to ignore NULL references
 				Py_XDECREF(tracebackModule);
 				Py_XDECREF(methodName);
 				Py_XDECREF(tracebackList);
 
-				// Give the exception back to python and print it to stderr in case anyone else wants it.
-				Py_XINCREF(errorType);
-				Py_XINCREF(errorValue);
-				Py_XINCREF(errorTraceback);
-
 				PyErr_Restore(errorType, errorValue, errorTraceback);
-				//PyErr_PrintEx(0); // Remove this line to switch off stderr output
 			}
-			Error(_log,"###### EXCEPTION END ######");
+			Error(_log, "###### EXCEPTION END ######");
 		}
 	}
 	else
 	{
-		Py_DECREF(result);  // release "result" when done
+		Py_DECREF(result);  // Release result when done
 	}
 
-	Py_DECREF(main_dict);  // release "main_dict" when done
+	Py_DECREF(main_module);
+
+	// Restore the previous thread state
+#if (PY_VERSION_HEX < 0x030C0000)
+	PyThreadState_Swap(mainThreadState);
+#else
+	PyThreadState_Swap(prev_thread_state);
+#endif
 }