Python “如何解决Django错误”；gaierror:[Errno-2]名称或服务未知"；？

我正在创建一个演示电子商务网站，在教程的帮助下学习Django，但不幸的是，它只停留在一个地方。我现在可以发送电子邮件表单来提交表单

它抛出了如下错误：

Internal Server Error: /contact/ Traceback (most recent call last):   File "/home/jai/Desktop/tryten/local/lib/python2.7/site-packages/django/core/handlers/exception.py", line 39, in inner
    response = get_response(request)   File "/home/jai/Desktop/tryten/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 187, in _get_response
    response = self.process_exception_by_middleware(e, request)   File "/home/jai/Desktop/tryten/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 185, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)   File "/home/jai/Desktop/tryten/src/contact/views.py", line 18, in contact
    send_mail(subject, message,emailFrom, emailTo, fail_silently=True)   File "/home/jai/Desktop/tryten/local/lib/python2.7/site-packages/django/core/mail/__init__.py", line 62, in send_mail
    return mail.send()   File "/home/jai/Desktop/tryten/local/lib/python2.7/site-packages/django/core/mail/message.py", line 342, in send
    return self.get_connection(fail_silently).send_messages([self])   File "/home/jai/Desktop/tryten/local/lib/python2.7/site-packages/django/core/mail/backends/smtp.py", line 100, in send_messages
    new_conn_created = self.open()   File "/home/jai/Desktop/tryten/local/lib/python2.7/site-packages/django/core/mail/backends/smtp.py", line 58, in open
    self.connection = connection_class(self.host, self.port, **connection_params)   File "/usr/lib/python2.7/smtplib.py", line 256, in __init__
    (code, msg) = self.connect(host, port)   File "/usr/lib/python2.7/smtplib.py", line 316, in connect
    self.sock = self._get_socket(host, port, self.timeout)   File "/usr/lib/python2.7/smtplib.py", line 291, in _get_socket
    return socket.create_connection((host, port), timeout)   File "/usr/lib/python2.7/socket.py", line 553, in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM): gaierror: [Errno -2] Name or service not known

这是一段代码，显示发送电子邮件的设置文件中的更改

setting.py 

import os

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

EMAIL_HOST = 'smtp.gmail.com'
EMAIL_HOST_USER = 'jaizebra@gmail.com'
EMAIL_HOST_PASSWORD = '*************'
EMAIL_PORT = '587'
EMAIL_USE_TLS = True

这就是我正在使用的视图

View.py 
from django.shortcuts import render
from .forms import contactForm
from django.core.mail import send_mail
from django.conf import settings

# Create your views here.

def contact(request):
    form = contactForm(request.POST or None)

    if form.is_valid():
        name  = form.cleaned_data['name']
        comment = form.cleaned_data['comment']
        subject = 'Message from MYSITE.com'
        message = '%s %s' % (comment, name)
        emailFrom = form.cleaned_data['email']
        emailTo = [settings.EMAIL_HOST_USER]
        send_mail(subject, message,emailFrom, emailTo, fail_silently=True)

    context = locals()
    template = 'contact.html'
    return render(request, template, context)

表格如下：

forms.py 

from django import forms 
class contactForm(forms.Form):
    name = forms.CharField(required=False, max_length=100, help_text='100 Characters max.')
    email = forms.EmailField(required=True)
    comment = forms.CharField(required=True, widget=forms.Textarea)

更新：

我苦苦挣扎，发现这个错误是因为我在代理背后工作。当我在没有代理的网络上运行这段代码时，它运行得很好

我应该在何处更改设置以添加代理

我在英国也试过类似的东西

将下面的行添加到“wsgi.py”中： 导入操作系统 .... os.environ['http_proxy']=”http://myproxy:port" os.environ['https_proxy']=”http://myproxy:port"

---

但它不起作用：

在我看来，您正在本地运行此功能。您是否在本地运行SMTP服务器？当您运行

telnet 127.0.0.1 25时，您能连接吗？

？如果您不想进入处理配置，Mailchimp提供了很好的电子邮件服务。@OluwafemiSule显示错误“Trying 127.0.0.1…telnet:无法连接到远程主机：连接被拒绝”您检查了吗？哦，您没有设置电子邮件服务器。如果您使用UbuntuLinux，如果您想在本地运行电子邮件服务器，这里有一个社区提供的关于设置Postfix的指南。