try to correct stream bug

bot.py

@@ -31,12 +31,20 @@ def post_img(mastodon, text, visibility, log, config):
     mastodon.status_post("", None, media_ids=[media_dict], sensitive=True, visibility='public', spoiler_text="#NSFW")
 
 class BotListener(StreamListener):
+
+    def __init__(self, mastodon, log):
+        self.mastodon = mastodon;
+        self.log = log;
+        self.log.debug("init success")
+
     def on_notification(self, notification):
-        print("notif")
+        self.log.debug("notif")
 
     def on_update(self, status):
-        print("update");
+        self.log.debug("update");
 
+    #def handle_heartbeat():
+    #    self.log.debug("heartbeat")
 
 
 def main(): 
@@ -53,14 +61,12 @@ def main():
     if args.img:
         post_img(mastodon, "NSFW", 1, log, config_file)
     elif args.stream:
-        print("streaming")
-        stream = BotListener();
+        stream = BotListener(mastodon, log);
         while True:
             try:
-                print("listening")
+                log.info("Start listening...")
                 mastodon.stream_user(stream, async=False)
             except Exception as error:
-                pprint(error);
                 log.warning('General exception caught: ' + str(error))
                 time.sleep(0.5)