我创建了一个脚本，用于从服务器发送特定输出的邮件。 我把这个输出和我发送的每个元素分成了一个html单元格。 我还为表创建了一个标题：
def get_html_table_header(*column_names):
header_string = '<tr width=79 style="background:#3366FF;height:23.25pt;font-size:8.0pt;font-family:Arial,sans-serif;color:white;font-weight:bold;" >'
for column in column_names:
if column is not None:
header_string += '<td>' + column + '</td>'
header_string += '</tr>'
return header_string
def get_concrete_html_table_header():
return get_html_table_header('Num. Row','Cell1','Cell2','Cell3','Comment (enter your feedback below)','Cell4','Cell5','Cell6','Cell7','Cell8','Cell9','Cell10')
当我在linux konsole中打印此函数的结果时，它看起来像是：
<tr width=79 style="background:#3366FF;height:23.25pt;font-size:8.0pt;font-family:Arial,sans-serif;color:white;font-weight:bold;" ><td>Num. Row</td><td>Cell1</td><td>Cell2</td><td>Cell3</td><td>Comment (enter your feedback below)</td><td>Cell4</td><td>Cell5</td><td>Cell6</td><td>Cell7</td><td>Cell8</td><td>Cell9</td><td>Cell10</td></tr>
当我收到电子邮件时，源代码如下：
<tr width="79" style="background:#3366FF;height:23.25pt;font-size:8.0pt;font-family:Arial,sans-serif;color:white;font-weight:bold;"><td>Num. Row</td><td>Cell1</td><td>Cell2</td><td>Cell3</td><td>Comment (enter your feedback below)</td><td>Cell4</td><td>Cell5</td><td>Cell6</td><td>Cell7</td><td>Cell8</td><td>Cell9</td>< td>Cell10</td></tr>
使用功能构建电子邮件正文：
def build_email_body(CRs_list):
global criterial_number
if 0 == len(CRs_list):
return None
email_body = ''
email_body += '<html><head><title>My Title</title></head><body>'
email_body += '<p align="center"><font color="#176b54" size="+2"><b>Some info</b></font></p>'
email_body += '<p align="center"><font color="#176b54" size="+1">Another info</font></p>'
email_body += '<table align="center" BORDER=1 CELLSPACING=2 CELLPADDING=2 COLS=3 WIDTH="100%">'
email_body += get_concrete_html_table_header()
for CR in CRs_list:
email_body += get_html_table_row()#create row for every output received(11 cells for every output, according with the header)
email_body += '</table>'
email_body += '</table><br><p align="left"><font color="#176b54" size="+1"><b>=> This is an automatic generated email via script<br>'
email_body += '<br><br>Have a nice day!</b></font></p><br></body></html>'
return email_body
使用功能发送电子邮件：
def send_email(body, recipients, subject, file):
#inform just sender
if None == body:
body = "WARNING -> NO entries retrieved after 5 retries<br>CRAU output:<br>" + dct_newCRs_output + "<br>" + duration
#override recipients to not set junk info
recipients = sender
email = Email(SMTP_SERVER, SENDER, recipients, _CC, subject, body, 'html', file)
email.send()
send（）从类Email：
导入import os, smtplib
from email import encoders
from email.mime.audio import MIMEAudio
from email.mime.base import MIMEBase
from email.mime.image import MIMEImage
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
import mimetypes
class Email:
__config = {}
def __init__(self, smtp_server, sender, recipients, cc, subject, body, body_type, attachments=None):
self.__config = {'smtp_server': smtp_server,
'sender': sender,
'recipients': recipients,
'cc': cc,
'subject': subject,
'body':body,
'body_type':body_type, #plain|html
'attachments':attachments #list of files
}
def getSmtpServer(self):
return self.__config.get('smtp_server')
def getSender(self):
return self.__config.get('sender')
def getRecipients(self):
return self.__config.get('recipients')
def getCc(self):
return self.__config.get('cc')
def getSubject(self):
return self.__config.get('subject')
def getBody(self):
return self.__config.get('body')
def getBodyType(self):
return self.__config.get('body_type')
def getAttachments(self):
return self.__config.get('attachments')
def setSmtpServer(self, host):
self.__config['smtp_server'] = smtp_server
return self
def setSender(self, sender):
self.__config['sender'] = sender
return self
def setRecipients(self, recipients):
self.__config['recipients'] = recipients
return self
def setCc(self, cc):
self.__config['cc'] = cc
return self
def setSubject(self, subject):
self.__config['subject'] = subject
return self
def setBody(self, body):
self.__config['body'] = body
return selfMIMEMultipart
def setBodyType(self, body_type):
self.__config['body_type'] = body_type
return self
def setAttachments(self, attachments):
self.__config['attachments'] = attachments
return self
def attachFilesToEmail(self, attachments, msg):
if None == attachments:
tmpmsg = msg
msg = MIMEMultipart()
msg.attach(tmpmsg)
if None != attachments:
for fname in attachments:
if not os.path.exists(fname):
print "File '%s' does not exist. Not attaching to email." % fname
continue
if not os.path.isfile(fname):
print "Attachment '%s' is not a file. Not attaching to email." % fname
continue
# Guess at encoding type
ctype, encoding = mimetypes.guess_type(fname)
if ctype is None or encoding is not None:
# No guess could be made so use a binary type.
ctype = 'application/octet-stream'
maintype, subtype = ctype.split('/', 1)
if maintype == 'text':
fp = open(fname)
attach = MIMEText(fp.read(), _subtype=subtype)
fp.close()
elif maintype == 'image':
fp = open(fname, 'rb')
attach = MIMEImage(fp.read(), _subtype=subtype)
fp.close()
elif maintype == 'audio':
fp = open(fname, 'rb')
attach = MIMEAudio(fp.read(), _subtype=subtype)
fp.close()
else:
fp = open(fname, 'rb')
attach = MIMEBase(maintype, subtype)
attach.set_payload(fp.read())
fp.close()
# Encode the payload using Base64
encoders.encode_base64(attach)
# Set the filename parameter
filename = os.path.basename(fname)
attach.add_header('Content-Disposition', 'attachment', filename=filename)
msg.attach(attach)
def send(self):
# Create message container - the correct MIME type is multipart/alternative.
msg = MIMEMultipart('alternative')
msg['Subject'] = self.getSubject()
msg['From'] = self.getSender()
msg['To'] = self.getRecipients()
msg['CC'] = self.getCc()
# Record the MIME types of both parts - text/plain and text/html.
#part1 = MIMEText(text, 'plain')
#part2 = MIMEText(html, 'html')
part = MIMEText(self.getBody(), self.getBodyType())
# 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(part)
# Add attachments, if any
self.attachFilesToEmail(self.getAttachments(), msg)
# Send the message via local SMTP server.
s = smtplib.SMTP(self.getSmtpServer())
# sendmail function takes 3 arguments: sender's address, recipient's address
# and message to send - here it is sent as one string.
s.sendmail(self.getSender(), (self.getRecipients() + self.getCc()).split(","), msg.as_string())
s.quit()
我希望有足够的信息。 有人可以向我解释，为什么会发生这种情况，我该如何解决？
答案 0 :(得分：2)
您的代码看起来正确，问题出在其他地方。
<是您将<作为文本添加到HTML文档时所获得的（因为<表示“启动新元素”，您需要以纯文本格式转义此字符）
这里有趣的部分是为什么它只在整个字符串中发生一次。如果所有<都已被替换，我的猜测是您不小心将该表作为文本添加到邮件的HTML正文中。
也许< td>中的空格是一条线索：邮件每行不应超过72个字符。那么也许一些邮件服务器包装HTML？众所周知，Outlook会收到很多邮件。
尝试将HTML代码作为多部分附件发送。见Sending HTML email using Python