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[英]Attach a word document to an e-mail and send without saving locally in python
[英]Attach CSV to E-Mail with MIMEBase, only attaches 'bin' document
我想写一个 function 将 csv 文件附加到带有 HTML 文本的电子邮件中。 一切正常。 我发送带有正文的电子邮件和带有正确信息的附件。 只是数据格式不对。 我在MIMEBASE('application', 'octet-stream')
中尝试了不同的变体。 这个给了我一个“.bin”数据,我无法在 macOS 上打开它。 其他人给了我一个包含正确数据的纯文本数据,但我不想手动将其复制到 csv 中。有人有解决方案如何将数据作为“.csv”输出吗? 我在这里找到的大多数解决方案看起来就像我下面的代码。
代码:
def send_mail(receiver, subject, filepath, attachname):
#login information
port = 123
smtp_server = "test.server.com"
login = "testlogin" # your login
password = "12345678910" # your password
# specify the sender’s and receiver’s email addresses and text in HTML
sender = "testmail@test.com"
receiver = receiver
message = MIMEMultipart()
message["Subject"] = subject
message["From"] = sender
message["To"] = COMMASPACE.join([receiver])
html_text = """\
<html>
<body>
<p>Hi ,<br>
<p>kind regards</p>
<p> This is an automatized Mail </p>
</body>
</html>
"""
# convert both parts to MIMEText objects and add them to the MIMEMultipart message
text = MIMEText(html_text, "html")
message.attach(text)
#add a file as attachment
file = open(filepath, "rb")
att = MIMEBase('application', 'octet-stream')
att.set_payload(file.read())
encoders.encode_base64(att)
att.add_header("Content_Disposition",
'attachment', filename = attachname)
message.attach(att)
try:
#send your message with credentials specified above
with smtplib.SMTP(smtp_server, port) as server:
server.connect(smtp_server, port)
server.ehlo()
server.starttls()
server.ehlo()
server.login(login, password)
server.sendmail(sender, receiver, message.as_string())
# tell the script to report if your message was sent or which errors need to be fixed
print('Sent')
except (gaierror, ConnectionRefusedError):
print('Failed to connect to the server. Bad connection settings?')
except smtplib.SMTPServerDisconnected:
print('Failed to connect to the server. Wrong user/password?')
except smtplib.SMTPException as e:
print('SMTP error occurred: ' + str(e))
send_mail('testmail@test.com', 'TEST', '/Users/Changer/Desktop/test.csv', 'test.csv')
Email 客户端可能会使用附件部分的内容类型来确定使用哪个程序打开附件,因此指定合适的内容类型可能会有所帮助。
此代码使用标准库的 mimetypes 模块来尝试根据其名称猜测附件的正确内容类型:
import mimetypes
mimetypes.init()
def send_mail(receiver, subject, filepath, attachname):
...
mimetype, _ = mimetypes.guess_type(attachname)
if mimetype is None:
mimetype = 'application/octet-stream'
type_, _, subtype = mimetype.partition('/')
att = MIMEBase(type_, subtype)
...
上面的代码将为附件生成这些标头:
b'Content-Type: text/x-comma-separated-values'
b'MIME-Version: 1.0'
b'Content-Transfer-Encoding: base64'
b'Content_Disposition: attachment; filename="test.csv"'
mac 是否会打开带有电子表格应用程序的 csv(我假设这就是您想要的)取决于机器的配置(有关示例,请参见此博客)。 如果您想确保在电子表格中打开文件,将其转换为电子表格格式并发送电子表格可能更有效。
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