Joh*_*ang 64 python email mime attachment multipart
我一直在使用python中的电子邮件模块,但我希望能够知道如何嵌入包含在html中的图像.
所以,例如,如果身体是这样的
<img src="../path/image.png"></img>
我想将image.png嵌入到电子邮件中,该src属性应该替换为content-id.有人知道怎么做这个吗？
And*_*are 132
这是我发现的一个例子.
食谱473810:发送包含嵌入图像和纯文本的HTML电子邮件:
HTML是那些希望发送具有丰富文本,布局和图形的电子邮件的人的首选方法.通常需要在消息中嵌入图形,以便接收者可以直接显示消息,而无需进一步下载.
某些邮件代理不支持HTML或其用户更喜欢接收纯文本邮件.HTML邮件的发件人应该包含纯文本邮件作为这些用户的备用邮件.
此配方发送带有单个嵌入图像和备用纯文本消息的简短HTML消息.
# Send an HTML email with an embedded image and a plain text message for
# email clients that don't want to display the HTML.
from email.MIMEMultipart import MIMEMultipart
from email.MIMEText import MIMEText
from email.MIMEImage import MIMEImage
# Define these once; use them twice!
strFrom = 'from@example.com'
strTo = 'to@example.com'
# Create the root message and fill in the from, to, and subject headers
msgRoot = MIMEMultipart('related')
msgRoot['Subject'] = 'test message'
msgRoot['From'] = strFrom
msgRoot['To'] = strTo
msgRoot.preamble = 'This is a multi-part message in MIME format.'
# Encapsulate the plain and HTML versions of the message body in an
# 'alternative' part, so message agents can decide which they want to display.
msgAlternative = MIMEMultipart('alternative')
msgRoot.attach(msgAlternative)
msgText = MIMEText('This is the alternative plain text message.')
msgAlternative.attach(msgText)
# We reference the image in the IMG SRC attribute by the ID we give it below
msgText = MIMEText('<b>Some <i>HTML</i> text</b> and an image.<br><img src="cid:image1"><br>Nifty!', 'html')
msgAlternative.attach(msgText)
# This example assumes the image is in the current directory
fp = open('test.jpg', 'rb')
msgImage = MIMEImage(fp.read())
fp.close()
# Define the image's ID as referenced above
msgImage.add_header('Content-ID', '<image1>')
msgRoot.attach(msgImage)
# Send the email (this example assumes SMTP authentication is required)
import smtplib
smtp = smtplib.SMTP()
smtp.connect('smtp.example.com')
smtp.login('exampleuser', 'examplepass')
smtp.sendmail(strFrom, strTo, msgRoot.as_string())
smtp.quit()
xyr*_*res 28
对于Python 3.4及更高版本.
接受的答案非常好,但仅适用于较旧的Python版本(2.x和3.3).我认为它需要更新.
以下是如何在较新的Python版本(3.4及更高版本)中执行此操作:
from email.message import EmailMessage
from email.utils import make_msgid
import mimetypes
msg = EmailMessage()
# generic email headers
msg['Subject'] = 'Hello there'
msg['From'] = 'ABCD <abcd@xyz.com>'
msg['To'] = 'PQRS <pqrs@xyz.com>'
# set the plain text body
msg.set_content('This is a plain text body.')
# now create a Content-ID for the image
image_cid = make_msgid(domain='xyz.com')
# if `domain` argument isn't provided, it will
# use your computer's name
# set an alternative html body
msg.add_alternative("""\
<html>
<body>
<p>This is an HTML body.<br>
It also has an image.
</p>
<img src="cid:{image_cid}">
</body>
</html>
""".format(image_cid=image_cid[1:-1]), subtype='html')
# image_cid looks like <long.random.number@xyz.com>
# to use it as the img src, we don't need `<` or `>`
# so we use [1:-1] to strip them off
# now open the image and attach it to the email
with open('path/to/image.jpg', 'rb') as img:
# know the Content-Type of the image
maintype, subtype = mimetypes.guess_type(img.name)[0].split('/')
# attach it
msg.get_payload()[1].add_related(img.read(),
maintype=maintype,
subtype=subtype,
cid=image_cid)
# the message is ready now
# you can write it to a file
# or send it using smtplib
我意识到 SMTP 和电子邮件库的一些事情是多么痛苦，我想我必须用它做点什么。我制作了一个库，可以更轻松地将图像嵌入到 HTML 中：
from redmail import EmailSender
email = EmailSender(host="<SMTP HOST>", port=0)
email.send(
sender="me@example.com",
receivers=["you@example.com"]
subject="An email with image",
html="""
<h1>Look at this:</h1>
{{ my_image }}
""",
body_images={
"my_image": "path/to/image.png"
}
)
很抱歉促销，但我认为这非常棒。您可以将图像作为 Matplotlib Figure、 Pillow提供，或者就像您的图像采用这些格式Image一样。bytes它使用 Jinja 进行模板化。
如果需要控制图像的大小，也可以这样做：
email.send(
sender="me@example.com",
receivers=["you@example.com"]
subject="An email with image",
html="""
<h1>Look at this:</h1>
<img src="{{ my_image.src }}" width=200 height=300>
""",
body_images={
"my_image": "path/to/image.png"
}
)
你可以直接 pip 安装它：
pip install redmail
（希望）这是您发送电子邮件所需的全部内容（还有更多）并且经过了充分测试。我还编写了广泛的文档：https://red-mail.readthedocs.io/en/latest/并在此处找到源代码。
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