Python SMTP 函数发送 .txt 文件作为 .bin 文件类型

Question

当调用下面的 SMTP 函数时，邮件被发送到我的邮箱，但日志文件是附加的 .bin 文件类型。打开时，.bin 文件读取起来就像是 .txt 文件类型一样，但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。有什么方法可以使用原始文件类型将此文件附加到邮件中吗？非常感谢任何反馈。

编辑：当我运行从 Windows 机器发送文件时，文件以其原始文件类型 (.txt) 发送，但当我运行它来自 Linux 机器。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'] = 'from@from.com'
    msg['To'] = 'to@to.com'

    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('sender@sender.com')
    s.send_message(msg)
    s.quit()

Answer 1

发送的文件没有扩展名，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将文件正确附加到邮件中。

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'] = 'from@from.com'
    msg['To'] = 'to@to.com'

    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('sender@sender.com')
    s.send_message(msg)
    s.quit()

Python SMTP 函数发送 .txt 文件作为 .bin 文件类型

Python SMTP function sending .txt file as .bin file-type

linux

smtplib

python-3.x

pathlib