python3 CherryPy的字節串錯誤

Question

我有以下服務器：

python3.2 server.py 

它提供了以下錯誤：

Traceback (most recent call last): 
    File "/usr/local/lib/python3.2/dist-packages/cherrypy/wsgiserver/__init__.py", line 982, in communicate 
    req.respond() 
    File "/usr/local/lib/python3.2/dist-packages/cherrypy/wsgiserver/__init__.py", line 779, in respond 
    self.server.gateway(self).respond() 
    File "/usr/local/lib/python3.2/dist-packages/cherrypy/wsgiserver/__init__.py", line 1735, in respond 
    response = self.req.server.wsgi_app(self.env, self.start_response) 
    File "test.py", line 6, in my_crazy_app 
    start_response(status, response_headers) 
    File "/usr/local/lib/python3.2/dist-packages/cherrypy/wsgiserver/__init__.py", line 1773, in start_response 
    raise TypeError("WSGI response header key %r is not a byte string." % k) 
TypeError: WSGI response header key 'Content-type' is not a byte string. 

我已經試過

from cherrypy import wsgiserver 

    def my_crazy_app(environ, start_response): 
     status = '200 OK' 
     response_headers = [('Content-type','text/plain')] 
     start_response(status, response_headers) 
     return ['Hello world!'] 

    server = wsgiserver.CherryPyWSGIServer(
       ('0.0.0.0', 80), my_crazy_app, 
       server_name='www.cherrypy.example') 
    server.start() 

當我運行以下方法將uni-code字符串更改爲字節，但不更改錯誤消息：

response_headers = [(bytes("Content-type", 'utf-8'),bytes("text/plain", 'utf-8'))] 
response_headers = [("Content-type".encode('utf-8'),"text/plain".encode('utf-8'))] 

Answer 1

試試這個：

response_headers = [(u'Content-type',u'text/plain')]