when IOError occurs during saving preferences

now print os.strerror of the error code

src/common/optparser.py

@@ -79,14 +79,8 @@ class OptionsParser:
 		try:
 			gajim.config.foreach(self.write_line, fd)
 		except IOError, e:
-			print e, dir(e), e.errno
-			if e.errno == 28:
-				err_str = _('No space left on device')
-			else:
-				err_str = e
-			print err_str
 			fd.close()
-			return err_str
+			return e.errno
 		fd.close()
 		if os.path.exists(self.__filename):
 			# win32 needs this
@@ -96,8 +90,7 @@ class OptionsParser:
 				pass
 		try:
 			os.rename(self.__tempfile, self.__filename)
-		except:
-			err_str = _('Unable to open %s for writing\n') % (self.__filename)
-			return err_str
+		except IOError, e:
+			return e.errno
 		return None
 		

src/gajim.py

@@ -1020,11 +1020,12 @@ class Interface:
 		return False
 
 	def save_config(self):
-		err_str = parser.write()
-		if err_str is not None:
-			dialogs.ErrorDialog(_('Cannot save your preferences'), 
-				err_str).get_response()
-			sys.exit(2)
+		err_code = parser.write()
+		if err_code is not None:
+			os.strerror(err_code)
+			# it is good to notify the user, in case he cannot see the output of the console
+			dialogs.ErrorDialog(_('Cannot save your preferences')).get_response()
+			sys.exit(1)
 
 	def enable_dbus(self):
 		if 'remote_control' not in globals():