Python SMTP函数将.txt文件作为.bin文件类型发送

Question

当调用以下SMTP功能时，邮件将发送到我的邮箱，但日志文件附加为.bin文件类型。打开时，.bin文件会读取。如果它是.txt文件类型，但是我无法在我的移动设备上打开.bin文件，这对我来说是个大问题。有没有办法使用其原始文件类型将此文件附加到邮件？任何反馈都非常感谢。

编辑：当我从Windows机器运行文件时，文件以其原始文件类型（.txt）发送，但是当我在Linux机器上运行文件类型时，文件类型处理不当。我已经使用Outlook（首选）和Gmail对此进行了测试。 Outlook将文件识别为.bin文件类型，而Gmail根本无法识别文件类型。

from pathlib import Path
data_folder = Path("path/to/working/directory")
log_file = Path(data_folder / "log.txt")

def sendmail():

    maildate = str(datetime.now().strftime("%m" + "/" + "%d" + "/" + "%Y"))
    subjectdate = str("Subject - " + maildate)

    import smtplib
    from email.mime.base import MIMEBase
    from email.mime.multipart import MIMEMultipart
    from email import encoders

    msg = MIMEMultipart()
    msg['Subject'] = subjectdate
    msg['From'] = '[email protected]'
    msg['To'] = '[email protected]'

    attachment = MIMEBase('application', "octet-stream")
    attachment.set_payload(open(log_file, "r").read())
    encoders.encode_base64(attachment)
    attachment.add_header('Content-Disposition', 'attachment, filename=log_file')

    msg.attach(attachment)

    s = smtplib.SMTP('[email protected]')
    s.send_message(msg)
    s.quit()

Answer 1

文件发送时没有扩展名，因为文件名被解释为“log_file”而不是log_file的值。下面的代码按预期工作，并正确地将文件附加到邮件。

from pathlib import Path
data_folder = Path("path/to/working/directory")
log_file = Path(data_folder / "log.txt")

def sendmail():

    maildate = str(datetime.now().strftime("%m" + "/" + "%d" + "/" + "%Y"))
    subjectdate = str("Subject - " + maildate)

    import smtplib
    from email.mime.base import MIMEBase
    from email.mime.multipart import MIMEMultipart
    from email import encoders

    msg = MIMEMultipart()
    msg['Subject'] = subjectdate
    msg['From'] = '[email protected]'
    msg['To'] = '[email protected]'

    attachment = MIMEBase('application', "octet-stream")
    attachment.set_payload(open(log_file, "r").read())
    encoders.encode_base64(attachment)
    attachment.add_header('Content-Disposition', 'attachment, filename="log.txt"')

    msg.attach(attachment)

    s = smtplib.SMTP('[email protected]')
    s.send_message(msg)
    s.quit()