#coding:utf-8

from wsgiref.simple_server import make_server

def RunServer(environ, start_response):
  start_response('200 OK', [('Content-Type', 'text/html')])
  return '<h1>Hello, web!</h1>'

if __name__ == '__main__':
  httpd = make_server('localhost', 8000, RunServer)
  print ("Serving HTTP on port 8000...")
  httpd.serve_forever()

Serving HTTP on port 8000...
127.0.0.1 - - [12/Apr/2016 16:44:17] "GET / HTTP/1.1" 200 0
Traceback (most recent call last):
File "C:\Python34\lib\wsgiref\handlers.py", line 138, in run
self.finish_response()
File "C:\Python34\lib\wsgiref\handlers.py", line 181, in finish_response
self.write(data)
File "C:\Python34\lib\wsgiref\handlers.py", line 267, in write
"write() argument must be a bytes instance"
AssertionError: write() argument must be a bytes instance
127.0.0.1 - - [12/Apr/2016 16:44:17] "GET / HTTP/1.1" 500 59
Traceback (most recent call last):
File "C:\Python34\lib\wsgiref\handlers.py", line 138, in run
self.finish_response()
File "C:\Python34\lib\wsgiref\handlers.py", line 181, in finish_response
self.write(data)
File "C:\Python34\lib\wsgiref\handlers.py", line 267, 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:\Python34\lib\wsgiref\handlers.py", line 141, in run
self.handle_error()
File "C:\Python34\lib\wsgiref\handlers.py", line 369, in handle_error
self.finish_response()
File "C:\Python34\lib\wsgiref\handlers.py", line 181, in finish_response
self.write(data)
File "C:\Python34\lib\wsgiref\handlers.py", line 275, in write
self.send_headers()
File "C:\Python34\lib\wsgiref\handlers.py", line 332, in send_headers
if not self.origin_server or self.client_is_modern():
File "C:\Python34\lib\wsgiref\handlers.py", line 345, 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):
----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 60566)
File "C:\Python34\lib\socketserver.py", line 305, in _handle_request_noblock
self.process_request(request, client_address)
File "C:\Python34\lib\socketserver.py", line 331, in process_request
self.finish_request(request, client_address)
File "C:\Python34\lib\socketserver.py", line 344, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "C:\Python34\lib\socketserver.py", line 673, in __init__
self.handle()
File "C:\Python34\lib\wsgiref\simple_server.py", line 133, in handle
handler.run(self.server.get_app())
File "C:\Python34\lib\wsgiref\handlers.py", line 144, in run
self.close()
File "C:\Python34\lib\wsgiref\simple_server.py", line 35, in close
self.status.split(' ',1)[0], self.bytes_sent
AttributeError: 'NoneType' object has no attribute 'split'
----------------------------------------
----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 60568)
----------------------------------------
127.0.0.1 - - [12/Apr/2016 16:44:18] "GET / HTTP/1.1" 200 0
Traceback (most recent call last):
File "C:\Python34\lib\wsgiref\handlers.py", line 138, in run
self.finish_response()
File "C:\Python34\lib\wsgiref\handlers.py", line 181, in finish_response
self.write(data)
File "C:\Python34\lib\wsgiref\handlers.py", line 267, in write
"write() argument must be a bytes instance"
AssertionError: write() argument must be a bytes instance
127.0.0.1 - - [12/Apr/2016 16:44:18] "GET / HTTP/1.1" 500 59
Traceback (most recent call last):
File "C:\Python34\lib\wsgiref\handlers.py", line 138, in run
self.finish_response()
File "C:\Python34\lib\wsgiref\handlers.py", line 181, in finish_response
self.write(data)
File "C:\Python34\lib\wsgiref\handlers.py", line 267, 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:\Python34\lib\wsgiref\handlers.py", line 141, in run
self.handle_error()
File "C:\Python34\lib\wsgiref\handlers.py", line 369, in handle_error
self.finish_response()
File "C:\Python34\lib\wsgiref\handlers.py", line 181, in finish_response
self.write(data)
File "C:\Python34\lib\wsgiref\handlers.py", line 275, in write
self.send_headers()
File "C:\Python34\lib\wsgiref\handlers.py", line 332, in send_headers
if not self.origin_server or self.client_is_modern():
File "C:\Python34\lib\wsgiref\handlers.py", line 345, 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:\Python34\lib\socketserver.py", line 305, in _handle_request_noblock
self.process_request(request, client_address)
File "C:\Python34\lib\socketserver.py", line 331, in process_request
self.finish_request(request, client_address)
File "C:\Python34\lib\socketserver.py", line 344, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "C:\Python34\lib\socketserver.py", line 673, in __init__
self.handle()
File "C:\Python34\lib\wsgiref\simple_server.py", line 133, in handle
handler.run(self.server.get_app())
File "C:\Python34\lib\wsgiref\handlers.py", line 144, in run
self.close()
File "C:\Python34\lib\wsgiref\simple_server.py", line 35, in close
self.status.split(' ',1)[0], self.bytes_sent
AttributeError: 'NoneType' object has no attribute 'split'

File "C:\Python34\lib\wsgiref\handlers.py", line 138, in run
self.finish_response()

File "C:\Python34\lib\wsgiref\handlers.py", line 181, in finish_response
self.write(data)

assert type(data) is bytes, \
"write() argument must be a bytes instance"