python make_server 报错 'NoneType' object has no attribute 'split'

python make_server 报错解码问题

File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\handlers.py", line 138, in run
    self.finish_response()
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\handlers.py", line 182, in finish_response
    self.write(data)
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\handlers.py", line 268, in write
    "write() argument must be a bytes instance"
AssertionError: write() argument must be a bytes instance
127.0.0.1 - - [03/Dec/2018 16:31:31] "GET /index HTTP/1.1" 500 59
----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 59042)
Traceback (most recent call last):
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\handlers.py", line 138, in run
    self.finish_response()
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\handlers.py", line 182, in finish_response
    self.write(data)
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\handlers.py", line 268, in write
    "write() argument must be a bytes instance"
AssertionError: write() argument must be a bytes instance

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\handlers.py", line 141, in run
    self.handle_error()
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\handlers.py", line 370, in handle_error
    self.finish_response()
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\handlers.py", line 182, in finish_response
    self.write(data)
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\handlers.py", line 276, in write
    self.send_headers()
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\handlers.py", line 333, in send_headers
    if not self.origin_server or self.client_is_modern():
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\handlers.py", line 346, in client_is_modern
    return self.environ['SERVER_PROTOCOL'].upper() != 'HTTP/0.9'
TypeError: 'NoneType' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\socketserver.py", line 313, in _handle_request_noblock
    self.process_request(request, client_address)
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\socketserver.py", line 344, in process_request
    self.finish_request(request, client_address)
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\socketserver.py", line 357, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\socketserver.py", line 717, in __init__
    self.handle()
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\simple_server.py", line 133, in handle
    handler.run(self.server.get_app())
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\handlers.py", line 144, in run
    self.close()
  File "C:\Users\w\AppData\Local\Programs\Python\Python37\lib\wsgiref\simple_server.py", line 35, in close
    self.status.split(' ',1)[0], self.bytes_sent
AttributeError: 'NoneType' object has no attribute 'split'
----------------------------------------

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