WEBScraping TypeError: sendmail() missing 1 required positional argument: 'msg'

Question

我的代码有错误。与 gmail 的连接有问题吗？或者我的代码还有其他问题？你能告诉我如何解决这个问题吗？

169.9
Garmin Forerunner 735XT GPS Multisport 和运行手表，Black/Grey Traceback（最后一次通话）：
文件 "C:\Users\User\source\repos\RCS_WEB_SCRAPER\RCS_WEB_SCRAPER\RCS_WEB_SCRAPER.py"，第 52 行，在 check_price()
中文件 "C:\Users\User\source\repos\RCS_WEB_SCRAPER\RCS_WEB_SCRAPER\RCS_WEB_SCRAPER.py"，第 29 行，在 check_price send_mail()
中文件 "C:\Users\User\source\repos\RCS_WEB_SCRAPER\RCS_WEB_SCRAPER\RCS_WEB_SCRAPER.py"，第 46 行，在 send_mail msg
中类型错误：sendmail() 缺少 1 个必需的位置参数：'msg'

我的代码

import requests
from bs4 import BeautifulSoup
import smtplib
import time


URL = 'https://www.amazon.co.uk/Garmin-Forerunner-735XT-Multisport-Running-Black-Grey/dp/B01DWIY39A/ref=sr_1_3?keywords=garmin&qid=1582615813&sr=8-3'

headers = {
    "User-Agent": 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0'}


def check_price():
    page = requests.get(URL, headers=headers)

    soup = BeautifulSoup(page.content, 'html.parser')

    title = soup.find(id ="productTitle").get_text()
    price = soup.find(id="priceblock_dealprice").get_text()
    converted_price = float(price[1:6])

    if(converted_price < 160.00):
        send_mail()

    print(converted_price)
    print(title.strip())

    if(converted_price > 160.00):
        send_mail()

def send_mail():
    server = smtplib.SMTP('smtp.gmail.com', 587)
    server.ehlo()
    server.starttls()
    server.ehlo()

    server.login('address', 'mAJnkzjfTqw8xJe')

    subject = 'Price decreased!'
    body = 'Now it is time to buy: https://www.amazon.co.uk/Garmin-Forerunner-735XT-Multisport-Running-Black-Grey/dp/B01DWIY39A/ref=sr_1_3?keywords=garmin&qid=1582615813&sr=8-3'

    msg = f"Subject: {subject}\n\n{body}"

    server.sendmail(
        'address@gmail.com',
        msg 
    )
    print('E-mail has been sent!')
    server.quit()

while(True):
    check_price()
    time.sleep(28800)

Answer 1

Sendmail 需要传递 3 个参数。发件人地址、收件人地址列表和要发送的消息。

来自文档 https://docs.python.org/3/library/smtplib.html#smtplib.SMTP.sendmail

The required arguments are an RFC 822 from-address string, a list of RFC 822 to-address strings (a bare string will be treated as a list with 1 address), and a message string.

您需要更新调用 server.sendmail 的代码，以包含发件人地址和收件人地址，然后是您的消息。

WEBScraping TypeError: sendmail() missing 1 required positional argument: 'msg'

WEBScraping TypeError: sendmail() missing 1 required positional argument: 'msg'

beautifulsoup

smtplib

web-scraping

python-3.x