我正在构建一封电子邮件，该电子邮件将嵌入图像base64，以便在我的同事打开它时正确显示。我真的不确定如何从文件以及我现在拥有的内容到达那里。
这运行良好，但我无法成功嵌入图像。 我需要嵌入图像1.jpg。
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.image import MIMEImage
# me == my email address
# you == recipient's email address
me = "me@.com"
you = "you@.com"
# Create message container - the correct MIME type is multipart/alternative.
msg = MIMEMultipart('alternative')
msg['Subject'] = "Sent using Python :) "
msg['From'] = me
msg['To'] = you
# Create the body of the message (a plain-text and an HTML version).
text = "This is an HTML body. I would like to embed a base64 image."
html = """
<html>
<body>
<p>This is an HTML body.<br>
I would like to embed a base64 image.
</p>
</body>
</html>
"""
# Record the MIME types of both parts - text/plain and text/html.
part1 = MIMEText(text, 'plain')
part2 = MIMEText(html, 'html')
# Attach parts into message container.
# According to RFC 2046, the last part of a multipart message, in this case
# the HTML message, is best and preferred.
msg.attach(part1)
msg.attach(part2)
# Send the message via local SMTP server.
s = smtplib.SMTP('localhost')
# sendmail function takes 3 arguments: sender's address, recipient's address
# and message to send - here it is sent as one string.
s.sendmail(me, you, msg.as_string())
s.quit()
我只在 HTML 文件中嵌入了 base64 图像对其进行了测试，但它应该是相同的。
您必须将图像读取为字节，编码为 base64，将其转换为字符串，然后在
'<img src="data:image/jpeg;base64,' + data_base64 + '">'
在 HTML 文件中嵌入 base64 图像的工作示例：
import base64
data = open('image.jpg', 'rb').read() # read bytes from file
data_base64 = base64.b64encode(data) # encode to base64 (bytes)
data_base64 = data_base64.decode() # convert bytes to string
print(data_base64)
#html = '<html><body><img src="data:image/jpeg;base64,' + data_base64 + '"></body></html>' # embed in html
html = '<img src="data:image/jpeg;base64,' + data_base64 + '">' # embed in html
open('output.html', 'w').write(html)
示例 编码和解码 base64 图像