update GUI - TODO: crash the app when the sim package change during the devsimpy session

Author: capocchi

devsimpy/DEVSKernel/BrokerDEVS/Brokers/mqtt/data/mosquitto.db

@@ -1364,7 +1364,26 @@ def OnApply(self, evt):
 			setattr(builtins, 'DEFAULT_DEVS_DIRNAME', self.default_devs_dir)
 
 			try:
-				# Recompile core modules
+				# Clear old kernel modules from sys.modules cache
+				# This prevents conflicts when switching between PyDEVS, PyPDEVS, BrokerDEVS
+				import sys
+				import importlib
+				kernel_modules_to_remove = []
+				for module_name in list(sys.modules.keys()):
+					# Remove all DEVSKernel submodules (PyDEVS, PyPDEVS, BrokerDEVS, etc.)
+					# Also remove DomainInterface modules as they import kernel classes
+					# NOTE: We don't remove Container or Components as they have living instances
+					if 'DEVSKernel' in module_name or 'DomainInterface' in module_name:
+						kernel_modules_to_remove.append(module_name)
+				
+				for module_name in kernel_modules_to_remove:
+					if module_name in sys.modules:
+						del sys.modules[module_name]
+				
+				# Invalidate import caches to force fresh module discovery
+				importlib.invalidate_caches()
+					
+				# Recompile core modules with clean module cache
 				ReloadModule.recompile("DomainInterface.DomainBehavior")
 				ReloadModule.recompile("DomainInterface.DomainStructure")
 				ReloadModule.recompile("DomainInterface.MasterModel")

devsimpy/PreferencesGUI.py

@@ -107,8 +107,11 @@ def __init__(self, parent, simdia):
 
 		self.org_w,self.org_h = self.simdia.GetSize()
 
-		self.label1 = _("More settings...")
-		self.label2 = _("Extra options")
+		# Get current kernel name for display
+		kernel_name = DEFAULT_DEVS_DIRNAME
+		
+		self.label1 = _("More settings... [%s]") % kernel_name
+		self.label2 = _("Extra options [%s]") % kernel_name
 
 		self.cp = wx.CollapsiblePane(self, label=self.label1,
 											style=wx.CP_DEFAULT_STYLE|wx.CP_NO_TLW_RESIZE)