Question

我无法在现有问题上找到此错误的答案，因此可以解决。我正在尝试将电子邮件发送到使用Python，gmail和smtplib库从CSV文件导入的电子邮件地址列表。这是代码：

import smtplib
import csv

from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText

MY_ADDRESS = 'myemailaddress'
PASSWORD = 'mypassword'

def get_contacts(filename):
    """
    Return email addresses read from a file specified by filename.
    """

    emails = []
    with open(filename, newline='') as contacts_file:
        emailreader = csv.reader(contacts_file, delimiter=' ', quotechar='|')
        for a_contact in emailreader:
            emails.append(a_contact)
    return emails


def main():
    emails = get_contacts('mycontacts.csv') # read contacts
    message_template = """Test message goes here"""

    # set up the SMTP server
    s = smtplib.SMTP(host='smtp.gmail.com', port=587)
    s.starttls()
    s.login(MY_ADDRESS, PASSWORD)

    # For each contact, send the email:
    for email in zip(emails):
        msg = MIMEMultipart()       # create a message

        # add in the actual person name to the message template
        message = message_template

        # Prints out the message body for our sake
        print(message)

        # setup the parameters of the message
        msg['From']=MY_ADDRESS
        msg['To']=email
        msg['Subject']="This is TEST"

        # add in the message body
        msg.attach(MIMEText(message, 'plain'))

        # send the message via the server set up earlier.
        s.send_message(msg)
        del msg

    # Terminate the SMTP session and close the connection
    s.quit()

if __name__ == '__main__':
    main()

我收到以下错误：

Traceback (most recent call last):
  File "py_mail.py", line 58, in <module>
    main()
  File "py_mail.py", line 51, in main
    s.send_message(msg)
  File "/home/hugo/anaconda3/lib/python3.7/smtplib.py", line 942, in send_message
    to_addrs = [a[1] for a in email.utils.getaddresses(addr_fields)]
  File "/home/hugo/anaconda3/lib/python3.7/email/utils.py", line 112, in getaddresses
    all = COMMASPACE.join(fieldvalues)
TypeError: sequence item 0: expected str instance, tuple found

在我看来，尝试从电子邮件列表中读取电子邮件时发生了错误，但老实说我无法弄清楚。欢迎提供任何帮助或指向相关答案的链接。

更新：我使用的是zip，因为这是原始脚本所做的（https://medium.freecodecamp.org/send-emails-using-code-4fcea9df63f）。删除错误后，错误消失了，但出现了一个新错误：TypeError: sequence item 0: expected str instance, list found现在我唯一的问题是如何将我的电子邮件列表更改为smtplib可接受的输入

Answer 1

您必须将for email in zip(emails)更改为for email in emails。

尝试使用SMTP发送电子邮件时python中出现错误

1 个答案: