Python 设置邮箱附件的文件类型

发布于02月22日

用于发送带有附件的邮箱的Python脚本正在运行，但所有附件(如果有的话)都是以.eml文件而不是jpg、pdf、txt等格式到达的.它们确实可以正确打开，但我更希望它们带有实际的名称和类型.虽然我对Python3(attach( changed to add_attachment()做了一些小的更改，但它在我的Python2.7上确实起作用了.

此外，我不断地遇到这样的引用，即set_payload已被弃用，但我看不到应该使用什么来代替.

# Attach any files
files = '''/Users/Mine/Desktop/RKw.jpeg\n/Users/Mine/Desktop/PG_2022.pdf'''.splitlines()
for file in files:
    attachment = open(file, "rb")
    part = MIMEBase("application", "octet-stream")
    part.set_payload((attachment).read())
    encoders.encode_base64(part)
    part.add_header("Content-Disposition", f"attachment; filename= {file.split('/')[-1]}")
    msg.add_attachment(part)

推荐答案

您可以将附加文件的filename and the content type amongst other options的选项传递给add_attachment.

def get_ctype(filepath):
    ctype, encoding = mimetypes.guess_type(filepath)
    if ctype is None or encoding is not None:
       ctype = 'application/octet-stream'
    return ctype

# Attach any files
files = '''/Users/Mine/Desktop/RKw.jpeg\n/Users/Mine/Desktop/PG_2022.pdf'''.splitlines()
for file in files:
    attachment = open(file, "rb")
    ctype = get_ctype(file)
    maintype, subtype = ctype.split('/', 1)

    msg.add_attachment(
        attachment.read(),
        maintype=maintype,
        subtype=subtype,
        filename=file.split('/')[-1],    
    )