我有一个简单的 web 应用程序，用户可以在其中提交附件以及提交的信息。我想我已经正确上传了附件，但我不确定如何将它附加到服务器（GAE）端生成的电子邮件中。这是我的html表单
<form action="http://xxx.appspot.com" enctype="multipart/form-data;charset=UTF-8" target="myiframe" method="post" id="myForm" name="myForm">Contact Name<br />
<input type="text" required="" name="cname" /><br />
Name of Institution<br />
<input type="text" required="" name="iname" /><br />
E-Mail<br />
<input type="email" required="" name="email" /><br />
Phone<br />
<input type="tel" required="" name="phone" /><br />
If you have a supporting file that will clarify your help request you can add it here (optional)<br />
<input type="file" name="upfile" MAXLENGTH=50 ALLOW="text/html/text/plain" /><br />
Description of problem/issue<br />
<textarea required="" name="desc" rows="3" cols="30">
</textarea>
<br />
<input type="submit" value="Submit" />
<div id="result"></div>
</form>
<iframe name="myiframe" style="visibility:hidden;display:none" src="http://xxx.appspot.com" id="myiframe"></iframe>
这是我的服务器端代码
import cgi, cgitb
from google.appengine.api import mail
class MainPage(webapp2.RequestHandler):
def get(self):
self.response.headers['Content-Type'] = 'text/plain'
self.response.write('Hello, webapp2 World!')
def post(self):
contact=self.request.POST["cname"]
institute=self.request.POST["iname"]
email=self.request.POST["email"]
phone=self.request.POST["phone"]
desc=self.request.POST["desc"]
filename=self.request.POST["upfile"]
user_address = "xxx@xxx.net"
sender_address = "xxx@gmail.com"
subject = "Test email"
body = "Contact Name: "+contact+"\n"+"Name of Institution: "+institute+"\n"+"E-mail: "+email+"\n"+"Phone: "+phone+"\n"+"Description: "+desc#+"\n"+"Filename: "+filename
mail.send_mail(sender_address, user_address, subject, body)
application = webapp2.WSGIApplication([('/', MainPage)], debug=True)
使用 GAE 文档的问题是我没有上传文件，我想，他们的方式。我在这里完全不知所措。
编辑：我添加了
mail.send_mail(sender_address, user_address, subject, body, attachments=[(filename), (filename)])
但这仅附加文字文件名，而不是内容。