fixed no response error in reddit module

reddit.py

@@ -25,6 +25,34 @@ def get_reddit_instance():
     )
 
 
+def get_reddit_post(sub, is_image_post=False):
+    reddit_instance = get_reddit_instance()
+
+    try:
+        sub = reddit_instance.subreddit(sub)
+        post = sub.random()
+
+    except exceptions.NotFound:
+        return "Geile, gib gültiges Sub"
+    except exceptions.Forbidden:
+        return "Geile, gib freies Sub"
+    except Exception as e:
+        return e
+
+    if post == None:
+        return "Random geht in diesem Sub leider nicht :("
+
+    if is_image_post:
+        tries = 0
+        while "image" not in get_post_type(post.url) and tries < 5:
+            post = sub.random()
+            tries += 1
+        if tries >= 5:
+            return "Geile, gib Sub mit Bildern (über 5 Fehlversuche)"
+
+        return post.url
+
+
 def wrong_dog(bot, update):
     reddit(bot, update, ['whatswrongwithyourdog'])
 
@@ -37,40 +65,14 @@ def reddit(bot, update, args):
     if not args:
         update.message.reply_text("Geile, sag sub")
         return
-    sub = args[0]
-    reddit_instance = get_reddit_instance()
 
-    post = reddit_instance.subreddit(sub).random()
-    update.message.reply_text(post.url)
+    sub = args[0]
+    update.message.reply_text(get_reddit_post(sub))
 
 
 def reddit_img(bot, update, args):
     if not args:
         update.message.reply_text("Geile, sag sub")
         return
-    desired_sub = args[0]
-    reddit_instance = get_reddit_instance()
-
-    try:
-        sub = reddit_instance.subreddit(desired_sub)
-        post = sub.random()
-        print(post.url)
-    except exceptions.NotFound:
-        update.message.reply_text("Geile, gib gültiges Sub")
-        return
-    except exceptions.Forbidden:
-        update.message.reply_text("Geile, gib freies Sub")
-        return
-    except Exception as e:
-        update.message.reply_text(e)
-        return
-
-    tries = 0
-    while "image" not in get_post_type(post.url) and tries < 5:
-        post = sub.random()
-        tries += 1
-    if tries >= 5:
-        update.message.reply_text("Geile, gib Sub mit Bildern (über 5 Fehlversuche)")
-        return
-
-    bot.send_photo(chat_id=update.message.chat_id, photo=post.url)
+    sub = args[0]
+    bot.send_photo(chat_id=update.message.chat_id, photo=get_reddit_post(sub, True))