fixed dynamic command listing for gifs

cogs/gifs.py

@@ -6,6 +6,7 @@ from discord.ext import commands
 class Gifs(commands.Cog):
     def __init__(self, bot):
         self.bot = bot
+        self._gif_names = []
         self._load_gif_commands()
 
     def _load_gif_commands(self):
@@ -13,20 +14,21 @@ class Gifs(commands.Cog):
             return
         for filename in os.listdir('gifs'):
             if filename.endswith('.gif'):
-                name = filename[:-4]  # strip .gif
+                name = filename[:-4]
+                self._gif_names.append(name)
                 self._make_command(name)
 
     def _make_command(self, name: str):
-        async def gif_command(self, ctx):
+        async def gif_command(ctx):
             await ctx.reply(file=discord.File(f'gifs/{name}.gif'))
         gif_command.__name__ = name
         cmd = commands.command(name=name)(gif_command)
-        self.add_command(cmd)
+        self.bot.add_command(cmd)
 
     @commands.command()
     async def gifs(self, ctx):
-        gif_commands = [f'!{cmd.name}' for cmd in self.get_commands() if cmd.name != 'gifs']
-        await ctx.reply('\n'.join(sorted(gif_commands)))
+        gif_commands = [f'!{name}' for name in sorted(self._gif_names)]
+        await ctx.reply('\n'.join(gif_commands))
 
 async def setup(bot):
     await bot.add_cog(Gifs(bot))