问Python函数采用1个位置参数，但给出了2个？

import threading
import requests
from lxml import etree
from urllib import request
import re
import os
from queue import Queue


class produce(threading.Thread):
    headers = {
        'user - agent': 'Mozilla / 5.0(Windows NT 10.0;WOW64) AppleWebKit / 537.36(KHTML, likeGecko) Chrome / 94.0\
                   .4606.71Safari / 537.36Core / 1.94.188.400QQBrowser / 11.4.5226.400'
    }

    def __init__(self, page_queue, image_queue, *args, **kwargs):
        super(produce, self).__init__(*args, **kwargs)
        self.page_queue = page_queue
        self.image_queue = image_queue

    def run(self):
        while True:
            if self.page_queue.empty():
                return
            url = self.page_queue.get()
            self.parse_page(url)


    def parse_page(url):

        BASE_DOmain = 'https://dou.yuanmazg.com'
        response = requests.get(url, headers=self.headers)
        text = response.content.decode('utf-8')
        html = etree.HTML(text)
        imgs = html.xpath('//div[@class="col-sm-9"]//img')
        for img in imgs:
            img_url = img.xpath('./@data-original')  # img.get('div')可以获得img下所有的div标签
            detail_url = BASE_DOmain + img_url[0]
            picture_name = img.xpath('./@alt')[0]
            picture_name = re.sub(r'[？？.。,，*!！]', '', picture_name)
            suffix = os.path.splitext(detail_url)[1]
            filename = picture_name + suffix
            self.image_queue.put((detail_url, filename))
            # request.urlretrieve(detail_url,'image/'+filename)


class customer(threading.Thread):
    def __init__(self, page_queue, image_queue, *args, **kwargs):
        super(customer, self).__init__(*args, **kwargs)
        self.page_queue = page_queue
        self.image_queue = image_queue

    def run(self):
        while True:
            if self.page_queue.empty():
                if self.image_queue.empty():
                    return
            img = self.image_queue.get()
            detail_url, filename = img
            request.urlretrieve(detail_url, 'image/' + filename)
            print(filename + "已经下载完成")


def main():
    page_queue = Queue(100)
    image_queue = Queue(500)
    for i in range(1, 5):
        url = 'https://dou.yuanmazg.com/doutu?page=%d' % i
        page_queue.put(url)

    for i in range(5):
        t = produce(page_queue, image_queue).start()

    for i in range(5):
        t = customer(page_queue, image_queue).start()


if __name__ == '__main__':
    main()