TypeError：check_database（）获取2个位置参数，但给出3个

Question

编写僵尸程序以抓取论坛并通过电子邮件向用户发送基于关键字的报告。遇到麻烦。

还有点担心我的进口是不正确的，因为我试图搞砸了这个。

运行时设置此错误（显然电子邮件信息是****）：

    E:\>python dgcrbot.py
Traceback (most recent call last):
  File "dgcrbot.py", line 95, in <module>
    main()
  File "dgcrbot.py", line 91, in main
    Email('*****')
  File "dgcrbot.py", line 67, in __init__
    self.run()
  File "dgcrbot.py", line 87, in run
    self.send_message()
  File "dgcrbot.py", line 70, in send_message
    matches = Site('http://www.dgcoursereview.com/forums/forumdisplay.php?f=2')
  File "dgcrbot.py", line 23, in __init__
    self.check_posts()
  File "dgcrbot.py", line 55, in check_posts
    if any(pattern.lower() in title.lower() for pattern in patterns) and self.check_database(self, posts[title]) is False:
TypeError: check_database() takes 2 positional arguments but 3 were given

完全转储

import re
import sqlite3
import urllib.request
import html.parser
import smtplib
from bs4 import BeautifulSoup
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText

patterns = [****]
data = sqlite3.connect('discgolf.db')
cur = data.cursor()
cur.execute('CREATE TABLE IF NOT EXISTS checked(id)')
data.commit()

server = smtplib.SMTP()
class Site(object):

    def __init__(self,forum):
        self.forum = forum
        self.check_posts()

    def get_url(self):
        posts = {}
        html = BeautifulSoup(urllib.request.urlopen(self.forum).read().decode('utf-8','ignore'),'html.parser')
        titles = html.find_all('td',class_='alt1')
        for title in titles:
            try:
                url = str(title)[re.search('<a href="',str(title)).span()[1]:]
                url = url[:re.search('">',url).span()[0]]
                url = url[re.search('amp;t=',url).span()[1]:]
                title = str(title)[re.search('title=',str(title)).span()[1]:re.search('">',str(title)).span()[0]]
                posts[title] = url 
            except:
                pass
        return posts

    def check_database(self, identity):
        cur.execute('SELECT * FROM checked WHERE id=?',[identity])
        if cur.fetchone():
            return True
        else:
            return False

    def submit_to_database(self, identity):
        cur.execute('INSERT INTO checked VALUES(?)',[identity])
        data.commit()

    def check_posts(self):
        posts = self.get_url()
        matches = {}
        for title in posts:
            if any(pattern.lower() in title.lower() for pattern in patterns) and self.check_database(self, posts[title]) is False:
                permalink = 'http://www.dgcoursereview.com/forums/showthread.php?t={}'.format(post[title])
                matches[title] = permalink
                self.submit_to_database(posts[title])
        return matches


class Email(object):

    def __init__(self, to_address, from_address='*****'):
        self.to_address = to_address
        self.from_address = from_address
        self.run()

    def send_message(self,subject='Found Match', body='N/A'):
        matches = Site('http://www.dgcoursereview.com/forums/forumdisplay.php?f=2')
        msg = MIMEMultipart()
        msg['From'] = self.from_address
        msg['To'] = self.to_address
        msg['Subject'] = DGCR - AutoBot
        body = ''
        for title in matches:
            body += '{} -- {}\n\n'.format(title,matches[title])
        msg.attach(MIMEText(body,'plain'))
        server = smtplib.SMTP('*****')
        server.starttls()
        server.login(self.from_address,'*****')
        text = msg.as_string()
        server.send_email(self.from_address, self.to_address, text)
        server.quit()

    def run(self):
        self.send_message()

def main():
    while True:
        Email('*****')
        time.sleep(10*60)

if __name__ == '__main__':
    main()