运行Django应用时出错

Question

当我在pycharm或者命令行中运行django项目时，出现了这个错误。我该怎么办呢？

"C:\Program Files (x86)\JetBrains\PyCharm 3.4.1\bin\runnerw.exe" C:\Python34\python.exe C:/Users/admin/PycharmProjects/untitled/manage.py runserver 8000 正在验证模型...

0 errors found
August 15, 2014 - 13:58:27
Django version 1.6.5, using settings 'untitled.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x022A32B8>
Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\django\utils\autoreload.py", line 93, in wrapper
    fn(*args, **kwargs)
  File "C:\Python34\lib\site-packages\django\core\management\commands\runserver.py", line 127, in inner_run
    ipv6=self.use_ipv6, threading=threading)
  File "C:\Python34\lib\site-packages\django\core\servers\basehttp.py", line 167, in run
    httpd = httpd_cls(server_address, WSGIRequestHandler, ipv6=ipv6)
  File "C:\Python34\lib\site-packages\django\core\servers\basehttp.py", line 109, in __init__
    super(WSGIServer, self).__init__(*args, **kwargs)
  File "C:\Python34\lib\socketserver.py", line 429, in __init__
    self.server_bind()
  File "C:\Python34\lib\site-packages\django\core\servers\basehttp.py", line 113, in server_bind
    super(WSGIServer, self).server_bind()
  File "C:\Python34\lib\wsgiref\simple_server.py", line 50, in server_bind
    HTTPServer.server_bind(self)
  File "C:\Python34\lib\http\server.py", line 135, in server_bind
    self.server_name = socket.getfqdn(host)
  File "C:\Python34\lib\socket.py", line 460, in getfqdn
    hostname, aliases, ipaddrs = gethostbyaddr(name)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xcf in position 6: invalid continuation byte

Answer 1

试着检查一下主机名。可能你的主机名里包含了一些非ASCII字符。看起来你是在使用Windows 7操作系统。

Answer 2

1) 检查你的 settings.py、manage.py、wsgi.py 等文件，看看里面有没有非ASCII字符。

2) 如果找到了，就在文件开头添加

# -*- coding: utf-8 -*-

这段代码。

3) 另外，对于包含非ASCII字符的字符串，要在字符串前面加个 u。

比如：u"这些字符不是unicode : üşiğç"

///适用于 python 2.x

Answer 3

我没有测试过，但我猜这是个Python的错误。你提供的错误信息显示，当你的主机名被复制到Python的Unicode字符串时，会触发UnicodeDecodeError错误。

请检查一下你正在使用的机器的主机名是否包含了Unicode字符。

这个链接似乎和你的问题是一样的。在帖子中提到了Python的问题9377，这个问题还没有解决。