cose con i file di configurazione, non funziona bene la scrittura

bananaSPLIT/guimain.py

@@ -21,6 +21,7 @@ from libsplit import bananaSPLITTER
 
 from PyQt5.QtCore import QDir,pyqtSignal
 from slugify import slugify
+
 class bananaMain(PyQt5.QtWidgets.QMainWindow):
 	def __init__(self):
 		PyQt5.QtWidgets.QMainWindow.__init__(self)
@@ -65,7 +66,7 @@ class bananaMain(PyQt5.QtWidgets.QMainWindow):
 		self.ui.actionSalva_Preset.triggered.connect(self.openSavePreset)
 		
 		#riempi pagine di interfaccia
-		self.fillInterface()
+		self.fillAllInterfaces()
 		pass
 	
 	def fillInterface(self):
@@ -75,6 +76,13 @@ class bananaMain(PyQt5.QtWidgets.QMainWindow):
 			self.ui.lbl_dest.setText(self.conf.getParam('paths','OUTworkPath'))
 		except:
 			self.log.critical("MainWindow: Configurazione non accettata")
+			
+	def fillAllInterfaces(self):
+		self.fillInterface()
+		self.titolo.fillInterface()
+		self.titoloav.fillInterface()
+		self.selezout.fillInterface()
+		self.advopt.fillInterface()
 	
 	def nextTab(self):
 		self.ui.wgt_main.setCurrentIndex(self.ui.wgt_main.currentIndex()+1)
@@ -93,7 +101,11 @@ class bananaMain(PyQt5.QtWidgets.QMainWindow):
 		lf.setFileMode(PyQt5.QtWidgets.QFileDialog.ExistingFile)
 		lf.setNameFilter("bananaCONF (*.json)")
 		if lf.exec():
-			self.logger.debug("Scelto il File: {}".format(next(lf.selectedFiles())))
+			cf = str(lf.selectedFiles()[0].split('/')[-1])
+			self.logger.debug("Scelto il File: {}".format(cf))
+			self.conf.open()
+			self.conf.use(cf)
+			self.fillAllInterfaces()
 		pass											 
 	
 	def openSavePreset(self):
@@ -103,6 +115,7 @@ class bananaMain(PyQt5.QtWidgets.QMainWindow):
 		sf.setNameFilter("bananaCONF (*.json)")
 		if sf.exec():
 			rv=str(sf.selectedFiles()[0])
+			self.conf.setParam(('paths','lastUsed'),rv)
 			self.logger.debug("Scrivi il File: {}".format(rv))
 			self.conf.save(fName=rv)
 		pass