问TypeError:模块()最多接受2个参数(给定3个)

EN

import discord
import dns
from discord import file
from discord.ext import commands
from pymongo import MongoClient

level = ["Bronze", "Silver", "Gold"]
levelnum = [5, 10, 15]

cluster = MongoClient(
    "mongodb+srv://myusername:<mypassword>@cluster0.47irg.mongodb.net/myFirstDatabase?retryWrites=true&w=majority")

leveling = "discord", "leveling"


class levelsys(commands.cog):
    def __init__(self, bot):
        self.bot = bot

        @commands.Cog.listener()
        async def on_ready(ctx):
            print("lvl system is up and running")

        @commands.Cog.listener()
        async def on_message(self, message, ctx=None):
            stats = leveling.find_one({"id": message.author.id})
            if not message.author.bot:
                if stats is None:
                    newuser = {"id": message.author.id, "xp": 1}
                    leveling.insert_one(newuser)
                else:
                    xp = stats["xp"] + 5
                    leveling.update_one({"id": message.author.id}, {"$set": {xp}})
                    lvl = 0
                    while True:
                        if xp < ((50 * (lvl ** 2)) + (50 * (lvl - 1))):
                            break
                        lvl += 1
                        xp -= ((50 * (lvl - 1) ** 2) + (50 * (lvl - 1)))
                        if xp == 0:
                            with open('giphy.gif', 'rb') as f:
                                pictures = discord.File(f)
                                ss = f"Nice {message.author.mention} you leveled up to level {lvl} <:lvlup:858026926832484352>"
                            await message.channel.send(ss)
                            for i in range(len(level)):
                                if lvl == levelnum[i]:
                                    await message.author.add_roles(
                                        discord.utils.get(message.author.guild.roles, name=level[i]))
                                    embed = discord.Embed(
                                        description=f"{message.author.mention} you have gotten the {level[i]} rank",
                                        color=discord.Colour.light_grey())
                                    embed.set_thumbnail(url=message.author.avatar_url)
                                    await ctx.send(embed=embed)

        @commands.command()
        async def rank(ctx, self):
            stats = leveling.find_one({"id": ctx.author.id})
            if stats is None:
                embed = discord.Embed(description="You haven't sent any messages, no rank",
                                      color=discord.Colour.light_grey())
                await ctx.send(embed=embed)
            else:
                xp = stats["xp"]
                lvl = 0
                rankers = 0
                while True:
                    if xp < ((50 * (lvl ** 2)) + (50 * (lvl - 1))):
                        break
                    lvl += 1
                xp -= ((50 * (lvl - 1) ** 2) + (50 * (lvl - 1)))
                boxes = int((xp / (200 ** ((1 / 2) * lvl))) * 20)
                rank = leveling.find().sort("xp", - 1)
                for x in rank:
                    rank += 1
                    if stats["id"] == x["id"]:
                        break
                embed = discord.Embed(title="{}'s level stats".format(ctx.author.name))
                embed.add_field(name="Name", value=ctx.author.mention, inline=True)
                embed.add_field(name="XP", value=f"{xp}/{int(200 * ((1 / 2) * lvl))}", inline=True)
                embed.add_field(name="Rank", value=f"{rank}/{ctx.guild.member_count}", inline=True)
                embed.add_field(name="Progress bar [lvl]",
                                value=boxes * ":blue_square:" + (20 - boxes) * "white_square", inline=False)
                embed.set_thumbnail(url=ctx.author.avatar_url)
                await ctx.send(embed=embed)

        @commands.command()
        async def lvlleaderboard(self, ctx, rankings=None):
            rankings == leveling.find().sort("xp", - 1)
            i = 1
            embed = discord.Embed(title="Rankings", color=discord.Colour.light_grey())
            for x in rankings:
                try:
                    temp = ctx.guild.get_member(x["id"])
                    tempxp = x["xp"]
                    embed.add_field(name=f"{i}: {temp.name}", value=f"Total XP:{tempxp}", inline=False)
                    i += 1
                except:
                    pass
                if i == 11:
                    break
                await ctx.send(embed=embed)


def setup(client):
    client.add_cog(levelsys(bot))