Add cooldown for the happening

bot.py

@@ -5,6 +5,7 @@ from os import listdir
 from os.path import splitext, basename
 from urllib.parse import urlparse
 from asyncio import Lock
+from datetime import datetime, timedelta
 
 def url(str):
     try:
@@ -23,6 +24,8 @@ class Client(discord.Client):
         print("Logged on as", self.user)
         self.emoji_lock = Lock()
 
+        self.lastime = None
+
     async def on_message(self, message):
         if message.author == self.user:
             return
@@ -32,7 +35,9 @@ class Client(discord.Client):
 
         lowermsg = message.content.lower()
         if "why" in lowermsg and ("happening" in lowermsg or "habbening" in lowermsg):
+            if not self.lastime or self.lastime + timedelta(hours=1) < datetime.now():
                 await message.channel.send("https://i.imgur.com/SFRw7aJ.png")  # seedot.png
+                self.lastime = datetime.now()
 
         name = None
         image_name = None