use property setter

readset.py

@@ -127,6 +127,11 @@ class commandline:
     def rebuildHashlist(self):
         return self._rebuildHashlist
 
+    @rebuildHashlist.setter
+    def rebuildHashlist(self, v):
+        if isinstance(v, bool):
+            self._rebuildHashlist = v
+
     @property
     def exitAfterRebuild(self):
         return self._exitAfterRebuild

rsschecker.py

@@ -67,7 +67,7 @@ class RSSCheckerThread(Thread):
                     self._main._db.setRSSForceUpdate(rss.url, False)
         if self._main._commandLine.rebuildHashlist and self._main._commandLine.exitAfterRebuild:
             _exit(0)
-        self._main._commandLine._rebuildHashlist = False
+        self._main._commandLine.rebuildHashlist = False
         self._main._tempFileEntries.clear()
 
     def __init__(self, m):