Python 电子邮件脚本失败，除非首先在交互式窗口中调用 smtplib

Question

我有一个通过邮件服务器发送电子邮件的脚本。该脚本仅在我首先在交互式窗口中调用 import smtplib 时才有效。否则，我会收到以下错误:

ImportError: No module named MIMEMultipart

谁能帮我理解这种行为背后的根本原因？

import smtplib
from email.MIMEMultipart import MIMEMultipart
from email.MIMEBase import MIMEBase
from email.MIMEText import MIMEText
from email import Encoders
import os

# Fill in the necessary blanks here
gmail_user = "<your user name>"
gmail_pwd = "<your password>"

def mail(to, subject, text):
    msg = MIMEMultipart()

    msg['From'] = gmail_user
    msg['To'] = to
    msg['Subject'] = subject

    msg.attach(MIMEText(text))

    msg.attach(MIMEText(text))

    mailServer =smtplib.SMTP("smtp.gmail.com", 587)
    mailServer.ehlo()
    mailServer.starttls()
    mailServer.ehlo()
    mailServer.login(gmail_user, gmail_pwd)
    mailServer.sendmail(gmail_user, to, msg.as_string())
    mailServer.close()

mail("<recipient's email>",
     "Hello from python!",
     "This is an email sent with python")

Answer 1

可能是您的脚本被命名为“email.py”，或者您的当前目录中有一个“email.py”(或“email.pyc”等)文件？