Applied the profiler's pyqtSlot decorator to all of the code.

cura/CuraActions.py

@@ -1,5 +1,6 @@
-from PyQt5.QtCore import QObject, pyqtSlot, QUrl
+from PyQt5.QtCore import QObject, QUrl
 from PyQt5.QtGui import QDesktopServices
+from UM.FlameProfiler import pyqtSlot
 
 from UM.Event import CallFunctionEvent
 from UM.Application import Application

cura/CuraApplication.py

@@ -45,7 +45,8 @@ from . import MachineActionManager
 
 import cura.Settings
 
-from PyQt5.QtCore import pyqtSlot, QUrl, pyqtSignal, pyqtProperty, QEvent, Q_ENUMS
+from PyQt5.QtCore import QUrl, pyqtSignal, pyqtProperty, QEvent, Q_ENUMS
+from UM.FlameProfiler import pyqtSlot
 from PyQt5.QtGui import QColor, QIcon
 from PyQt5.QtWidgets import QMessageBox
 from PyQt5.QtQml import qmlRegisterUncreatableType, qmlRegisterSingletonType, qmlRegisterType

cura/MachineActionManager.py

@@ -6,7 +6,8 @@ from UM.PluginRegistry import PluginRegistry  # So MachineAction can be added as
 from UM.Settings.ContainerRegistry import ContainerRegistry
 from UM.Settings.DefinitionContainer import DefinitionContainer
 
-from PyQt5.QtCore import QObject, pyqtSlot
+from PyQt5.QtCore import QObject
+from UM.FlameProfiler import pyqtSlot
 
 ##  Raised when trying to add an unknown machine action as a required action
 class UnknownMachineActionError(Exception):

cura/PrintInformation.py

@@ -1,7 +1,8 @@
 # Copyright (c) 2015 Ultimaker B.V.
 # Cura is released under the terms of the AGPLv3 or higher.
 
-from PyQt5.QtCore import QObject, pyqtSignal, pyqtProperty, pyqtSlot
+from PyQt5.QtCore import QObject, pyqtSignal, pyqtProperty
+from UM.FlameProfiler import pyqtSlot
 
 from UM.Application import Application
 from UM.Qt.Duration import Duration

cura/Settings/ContainerManager.py

@@ -4,7 +4,8 @@
 import os.path
 import urllib
 
-from PyQt5.QtCore import QObject, pyqtSlot, pyqtProperty, pyqtSignal, QUrl, QVariant
+from PyQt5.QtCore import QObject, pyqtProperty, pyqtSignal, QUrl, QVariant
+from UM.FlameProfiler import pyqtSlot
 from PyQt5.QtWidgets import QMessageBox
 
 import UM.PluginRegistry

cura/Settings/ExtruderManager.py

@@ -1,7 +1,8 @@
 # Copyright (c) 2016 Ultimaker B.V.
 # Cura is released under the terms of the AGPLv3 or higher.
 
-from PyQt5.QtCore import pyqtSignal, pyqtProperty, pyqtSlot, QObject, QVariant #For communicating data and events to Qt.
+from PyQt5.QtCore import pyqtSignal, pyqtProperty, QObject, QVariant #For communicating data and events to Qt.
+from UM.FlameProfiler import pyqtSlot
 
 import UM.Application #To get the global container stack to find the current machine.
 import UM.Logger

cura/Settings/MachineManager.py

@@ -1,7 +1,8 @@
 # Copyright (c) 2016 Ultimaker B.V.
 # Cura is released under the terms of the AGPLv3 or higher.
 
-from PyQt5.QtCore import QObject, pyqtSlot, pyqtProperty, pyqtSignal
+from PyQt5.QtCore import QObject, pyqtProperty, pyqtSignal
+from UM.FlameProfiler import pyqtSlot
 from PyQt5.QtWidgets import QMessageBox
 from UM import Util
 

cura/Settings/SettingInheritanceManager.py

@@ -1,7 +1,8 @@
 # Copyright (c) 2016 Ultimaker B.V.
 # Cura is released under the terms of the AGPLv3 or higher.
 
-from PyQt5.QtCore import QObject, pyqtSlot, pyqtProperty, pyqtSignal
+from PyQt5.QtCore import QObject, pyqtProperty, pyqtSignal
+from UM.FlameProfiler import pyqtSlot
 import UM.Settings
 from UM.Application import Application
 import cura.Settings

plugins/3MFReader/WorkspaceDialog.py

@@ -1,7 +1,8 @@
 # Copyright (c) 2016 Ultimaker B.V.
 # Cura is released under the terms of the AGPLv3 or higher.
 
-from PyQt5.QtCore import Qt, QUrl, pyqtSignal, pyqtSlot, QObject, pyqtProperty, QCoreApplication
+from PyQt5.QtCore import Qt, QUrl, pyqtSignal, QObject, pyqtProperty, QCoreApplication
+from UM.FlameProfiler import pyqtSlot
 from PyQt5.QtQml import QQmlComponent, QQmlContext
 from UM.PluginRegistry import PluginRegistry
 from UM.Application import Application

plugins/ImageReader/ImageReaderUI.py

@@ -4,9 +4,9 @@
 import os
 import threading
 
-from PyQt5.QtCore import Qt, QUrl, pyqtSignal, pyqtSlot, QObject
+from PyQt5.QtCore import Qt, QUrl, pyqtSignal, QObject
 from PyQt5.QtQml import QQmlComponent, QQmlContext
-
+from UM.FlameProfiler import pyqtSlot
 from UM.Application import Application
 from UM.PluginRegistry import PluginRegistry
 from UM.Logger import Logger