bot.py 文件源码

def on_command_error(self, ctx, ex):
        if getattr(ex, 'should_suppress', False):
            logger.debug('Suppressing exception: %s', ex)
            return

        see_help = await ctx._('err.see_help', prefix=ctx.prefix, cmd=ctx.command.qualified_name) if ctx.command else\
            'See my help for more information.'

        if isinstance(ex, commands.errors.BadArgument):
            message = str(ex)
            if not message.endswith('.'):
                message = message + '.'
            await ctx.send(await ctx._('err.bad_arg', msg=message, see_help=see_help))
        elif isinstance(ex, commands.errors.MissingRequiredArgument):
            await ctx.send(await ctx._('err.uh_oh', ex=ex, see_help=see_help))
        elif isinstance(ex, commands.NoPrivateMessage):
            await ctx.send(await ctx._('err.not_in_dm'))
        elif isinstance(ex, errors.InsufficientPermissions):
            await ctx.send(ex)
        elif isinstance(ex, commands.errors.DisabledCommand):
            await ctx.send(await ctx._('err.globally_disabled'))
        elif isinstance(ex, asyncio.TimeoutError):
            await ctx.send(await ctx._('err.timeout'))
        elif isinstance(ex, commands.errors.CommandInvokeError):
            if isinstance(ex.original, discord.Forbidden):
                if ctx.command.name == 'help':
                    # can't dm that person :(
                    try:
                        await ctx.send(await ctx._('err.dms_disabled', mention=ctx.author.mention))
                    except discord.Forbidden:
                        pass
                    return
                return await self.handle_forbidden(ctx)

            # get the traceback
            tb = ''.join(traceback.format_exception(type(ex.original), ex.original, ex.original.__traceback__))

            # form a good human-readable message
            header = f'Command error: {type(ex.original).__name__}: {ex.original}'
            message = header + '\n' + str(tb)

            self.dispatch('uncaught_command_invoke_error', ex.original, (message, tb, ctx))
            logger.error(message)