0 
    def sendmail(self, from_addr, to_addrs, msg='hello', mail_options=[],rcpt_options=[]):
            self.ehlo_or_helo_if_needed()
            esmtp_opts = []
            if self.does_esmtp:
                    # Hmmm? what's this? -ddm
                    # self.esmtp_features['7bit']=""
                    if self.has_extn('size'):
                                esmtp_opts.append("size=%d" % len(msg))
                    for option in mail_options:
                            esmtp_opts.append(option)

            (code, resp) = self.mail(from_addr, esmtp_opts)
            if code != 250:
                self.rset()
                #raise SMTPSenderRefused(code, resp, from_addr)
            senderrs = {}
            if isinstance(to_addrs, basestring):
                to_addrs = [to_addrs]
            for each in to_addrs:
                (code, resp) = self.rcpt(each, rcpt_options)
                if (code != 250) and (code != 251):
                    senderrs[each] = (code, resp)
            if len(senderrs) == len(to_addrs):
                # the server refused all our recipients
                self.rset()
                #raise SMTPRecipientsRefused(senderrs)
            (code, resp) = self.data(msg)
            if code != 250:
                self.rset()
                #raise SMTPDataError(code, resp)
            #if we got here then somebody got our mail
            return senderrs

我正在尝试构建自己的 smtplib。我收到 TypeError: 'NoneType' object is not iterable when I try
(code, resp) = self.data(msg)

self.data() 定义为 - 我正在使用 self.data() 将消息发送到服务器。

    def data(self, msg):
            self.putcmd("data")
            (code, repl) = self.getreply()
            if self.debuglevel > 0:
                    print>>stderr, "data:", (code, repl)
            if code != 354:
                    #raise SMTPDataError(code, repl)
                    print "Err"
            else:
                    q = quotedata(msg)
                    if q[-2:] != CRLF:
                            q = q + CRLF
                    q = q + "." + CRLF
                    self.send(q)
                    (code, msg) = self.getreply()
                    if self.debuglevel > 0:
                            print>>stderr, "data:", (code, msg)
                    return (code, msg)
4

1 回答 1

1

我们无法从代码中看出您已经发布了self.data()正在做什么，但从您的错误中可以清楚地看出它正在返回None。如果你尝试解压 None，你会得到：

>>> (code, resp) = None
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'NoneType' object is not iterable

发布代码self.data()可能会有所帮助。

发布额外代码后更新：

代码(code, repl) = self.getreply()也可以解包None[注意：在 ] 中有两个 this 实例self.data()。self.data()异常是 in还是 in引发sendmail()？

还

if code != 354:
            #raise SMTPDataError(code, repl)
            print "Err"
else:
    ...

如果你得到代码 354，你已经注释掉了raise并且函数现在返回 None。这也可能是问题所在。

于 2012-10-02T07:54:23.250 回答