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import discord
from discord.ext import commands
import asyncio
import sys
import traceback
import math
class CommandErrorHandler:
def __init__(self, bot):
self.bot = bot
async def on_command_error(self, ctx, error):
if hasattr(ctx.command, 'on_error'):
return
error = getattr(error, 'original', error)
if isinstance(error, commands.CommandNotFound):
return
if isinstance(error, commands.UserInputError):
return await ctx.send(':no_entry: The command you specified failed to run because the arguments you provided were invalid.')
if isinstance(error, commands.CommandOnCooldown):
return await ctx.send("This command is on cooldown, please retry in {}s.".format(math.ceil(error.retry_after)))
if isinstance(error, commands.DisabledCommand):
return await ctx.send(':no_entry: This command has been disabled.')
if isinstance(error, commands.NoPrivateMessage):
try:
return await ctx.author.send(':no_entry: This command can only be used inside a server.')
except:
pass
if isinstance(error, commands.BadArgument):
if ctx.command.qualified_name == 'tag list':
return await ctx.send('I could not find that member. Please try again.')
else:
return await ctx.send("The argument you provided was invalid.")
if isinstance(error, commands.CheckFailure):
await ctx.send(":no_entry: You do not have permission to use this command.")
return
print('Ignoring exception in command {}:'.format(ctx.command), file=sys.stderr)
traceback.print_exception(type(error), error, error.__traceback__, file=sys.stderr)
def setup(bot):
bot.add_cog(CommandErrorHandler(bot))
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