63 lines
1.8 KiB
Python
63 lines
1.8 KiB
Python
import discord
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from discord.ext import commands
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import io
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import textwrap
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import traceback
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import contextlib
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class EvalCog(commands.Cog):
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def __init__(self, bot):
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self.bot = bot
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def cleanup_code(self, 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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return content.strip('` \n')
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@commands.command(name='evalpy', hidden=True)
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@commands.is_owner()
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async def _eval(self, ctx, *, body: str):
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"""Evaluates a code snippet."""
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env = {
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'bot': self.bot,
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'ctx': ctx,
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'channel': ctx.channel,
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'author': ctx.author,
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'guild': ctx.guild,
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'message': ctx.message,
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'discord': discord,
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'commands': commands
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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 = f'async def func():\n{textwrap.indent(body, " ")}'
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try:
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exec(to_compile, env)
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except Exception as e:
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return await ctx.send(f'```py\n{e.__class__.__name__}: {e}\n```')
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func = env['func']
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try:
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with contextlib.redirect_stdout(stdout):
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ret = await func()
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ret = await func()
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except Exception as e:
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value = stdout.getvalue()
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await ctx.send(f'```py\n{value}{traceback.format_exc()}\n```')
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else:
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value = stdout.getvalue()
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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```')
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else:
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await ctx.send(f'```py\n{value}{ret}\n```')
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async def setup(bot: commands.Bot):
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await bot.add_cog(EvalCog(bot))
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