267 lines
8.7 KiB
Python
267 lines
8.7 KiB
Python
from discord.ext import commands
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import asyncio
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import discord
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import inspect
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import textwrap
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import traceback
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import subprocess
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import io
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from contextlib import redirect_stdout
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def get_syntax_error(e):
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if e.text is None:
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return '```py\n{0.__class__.__name__}: {0}\n```'.format(e)
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return '```py\n{0.text}{1:>{0.offset}}\n{2}: {0}```'.format(e, '^', type(e).__name__)
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class Owner(commands.Cog):
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"""Commands that can only be used by the owner of the bot, bot management commands"""
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_last_result = None
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sessions = set()
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async def cog_check(self, ctx):
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return await ctx.bot.is_owner(ctx.author)
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@staticmethod
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def cleanup_code(content):
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"""Automatically removes code blocks from the code."""
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# remove ```py\n```
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if content.startswith('```') and content.endswith('```'):
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return '\n'.join(content.split('\n')[1:-1])
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# remove `foo`
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return content.strip('` \n')
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@commands.command(hidden=True)
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async def repl(self, ctx):
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msg = ctx.message
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variables = {
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'ctx': ctx,
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'bot': ctx.bot,
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'message': msg,
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'guild': msg.guild,
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'server': msg.guild,
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'channel': msg.channel,
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'author': msg.author,
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'self': self,
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'_': None,
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}
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if msg.channel.id in self.sessions:
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await ctx.send('Already running a REPL session in this channel. Exit it with `quit`.')
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return
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self.sessions.add(msg.channel.id)
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await ctx.send('Enter code to execute or evaluate. `exit()` or `quit` to exit.')
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def check(m):
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return m.author.id == msg.author.id and \
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m.channel.id == msg.channel.id and \
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m.content.startswith('`')
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code = None
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while True:
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try:
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response = await ctx.bot.wait_for('message', check=check, timeout=10.0 * 60.0)
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except asyncio.TimeoutError:
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await ctx.send('Exiting REPL session.')
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self.sessions.remove(msg.channel.id)
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break
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cleaned = self.cleanup_code(response.content)
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if cleaned in ('quit', 'exit', 'exit()'):
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await ctx.send('Exiting.')
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self.sessions.remove(msg.channel.id)
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return
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executor = exec
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if cleaned.count('\n') == 0:
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# single statement, potentially 'eval'
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try:
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code = compile(cleaned, '<repl session>', 'eval')
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except SyntaxError:
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pass
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else:
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executor = eval
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if executor is exec:
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try:
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code = compile(cleaned, '<repl session>', 'exec')
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except SyntaxError as e:
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await ctx.send(get_syntax_error(e))
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continue
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variables['message'] = response
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fmt = None
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stdout = io.StringIO()
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try:
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with redirect_stdout(stdout):
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result = executor(code, variables)
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if inspect.isawaitable(result):
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result = await result
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except Exception:
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value = stdout.getvalue()
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fmt = '```py\n{}{}\n```'.format(value, traceback.format_exc())
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else:
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value = stdout.getvalue()
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if result is not None:
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fmt = '```py\n{}{}\n```'.format(value, result)
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variables['_'] = result
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elif value:
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fmt = '```py\n{}\n```'.format(value)
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try:
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if fmt is not None:
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if len(fmt) > 2000:
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await ctx.send('Content too big to be printed.')
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else:
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await ctx.send(fmt)
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except discord.Forbidden:
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pass
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except discord.HTTPException as e:
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await ctx.send('Unexpected error: `{}`'.format(e))
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@commands.command()
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async def sendtochannel(self, ctx, cid: int, *, message):
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"""Sends a message to a provided channel, by ID"""
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channel = ctx.bot.get_channel(cid)
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await channel.send(message)
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try:
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await ctx.message.delete()
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except discord.Forbidden:
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pass
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@commands.command()
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async def debug(self, ctx, *, body: str):
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env = {
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'bot': ctx.bot,
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'ctx': ctx,
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'channel': ctx.message.channel,
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'author': ctx.message.author,
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'server': ctx.message.guild,
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'guild': ctx.message.guild,
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'message': ctx.message,
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'self': self,
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'_': self._last_result
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}
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env.update(globals())
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body = self.cleanup_code(body)
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stdout = io.StringIO()
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to_compile = 'async def func():\n%s' % textwrap.indent(body, ' ')
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try:
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exec(to_compile, env)
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except SyntaxError as e:
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return await ctx.send(get_syntax_error(e))
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func = env['func']
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try:
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with redirect_stdout(stdout):
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ret = await func()
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except Exception:
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value = stdout.getvalue()
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await ctx.send(f"```py\n{value}{traceback.format_exc()}\n```"[:2000])
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else:
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value = stdout.getvalue()
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try:
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await ctx.message.add_reaction('\u2705')
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except Exception:
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pass
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if ret is None:
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if value:
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await ctx.send(f"```py\n{value}\n```"[:2000])
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else:
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self._last_result = ret
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await ctx.send(f"```py\n{value}{ret}\n```"[:2000])
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@commands.command()
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async def bash(self, ctx, *, cmd: str):
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"""Runs a bash command"""
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output = subprocess.check_output("{}; exit 0".format(cmd), stderr=subprocess.STDOUT, shell=True)
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if output:
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await ctx.send("```\n{}\n```".format(output.decode("utf-8", "ignore").strip()))
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else:
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await ctx.send("No output for `{}`".format(cmd))
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@commands.command()
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async def shutdown(self, ctx):
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"""Shuts the bot down"""
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fmt = 'Shutting down, I will miss you {0.author.name}'
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await ctx.send(fmt.format(ctx.message))
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await ctx.bot.logout()
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await ctx.bot.close()
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@commands.command()
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async def name(self, ctx, new_nick: str):
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"""Changes the bot's name"""
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await ctx.bot.user.edit(username=new_nick)
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await ctx.send('Changed username to ' + new_nick)
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@commands.command()
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async def status(self, ctx, *, status: str):
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"""Changes the bot's 'playing' status"""
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await ctx.bot.change_presence(activity=discord.Game(name=status, type=0))
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await ctx.send("Just changed my status to '{}'!".format(status))
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@commands.command()
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async def load(self, ctx, *, module: str):
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"""Loads a module"""
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# Do this because I'm too lazy to type cogs.module
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module = module.lower()
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if not module.startswith("cogs"):
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module = "cogs.{}".format(module)
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# This try catch will catch errors such as syntax errors in the module we are loading
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try:
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ctx.bot.load_extension(module)
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await ctx.send("I have just loaded the {} module".format(module))
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except Exception as error:
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fmt = 'An error occurred while processing this request: ```py\n{}: {}\n```'
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await ctx.send(fmt.format(type(error).__name__, error))
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@commands.command()
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async def unload(self, ctx, *, module: str):
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"""Unloads a module"""
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# Do this because I'm too lazy to type cogs.module
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module = module.lower()
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if not module.startswith("cogs"):
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module = "cogs.{}".format(module)
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ctx.bot.unload_extension(module)
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await ctx.send("I have just unloaded the {} module".format(module))
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@commands.command()
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async def reload(self, ctx, *, module: str):
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"""Reloads a module"""
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# Do this because I'm too lazy to type cogs.module
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module = module.lower()
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if not module.startswith("cogs"):
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module = "cogs.{}".format(module)
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ctx.bot.unload_extension(module)
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# This try block will catch errors such as syntax errors in the module we are loading
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try:
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ctx.bot.load_extension(module)
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await ctx.send("I have just reloaded the {} module".format(module))
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except Exception as error:
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fmt = 'An error occurred while processing this request: ```py\n{}: {}\n```'
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await ctx.send(fmt.format(type(error).__name__, error))
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def setup(bot):
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bot.add_cog(Owner(bot))
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