title: a bytes-like object is required not 'str'
body: <p>I am trying to create a local HTTP server for Flask.</p>
  
  <p>Server starts successfully but when i try to run the <strong>localhost:5000</strong> in web browser i get this error</p>
  
  <hr>
  
  <pre><code>class webserverhandler(BaseHTTPRequestHandler):
  
  def do_GET(self):
      try:
          if self.path.endswith("/"):
              self.send_response(200)
              self.send_header('Content-Type','text/html')
              self.end_headers()
  
              output=""
              output+="&lt;html&gt;&lt;body&gt;Hello&lt;/body&gt;&lt;/html&gt;"
  
              self.wfile.write(output)
              print (output)
              return
  
      except IOError:
          self.send_error(404,"File Not Found %s" % self.path)
  
  
  def main():
  try:
      port=5000
      server=HTTPServer(('',port),webserverhandler)
      print ("webserver running on %s" % port)
      server.serve_forever()
  
  
  except KeyboardInterrupt:
      server.socket.close()
  </code></pre>
  
  <p>----------------------------------ERROR-----------------------------------------</p>
  
  <pre><code>webserver running on 5000
  127.0.0.1 - - [11/Feb/2017 17:59:36] "GET / HTTP/1.1" 200 -
  Exception happened during processing of request from ('127.0.0.1', 54027)
  Traceback (most recent call last):
  File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\socketserver.py", line 317, in _handle_request_noblock
   self.process_request(request, client_address)
  File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\socketserver.py", line 348, in process_request
   self.finish_request(request, client_address)
  File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\socketserver.py", line 361, in finish_request
   self.RequestHandlerClass(request, client_address, self)
  File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\socketserver.py", line 696, in __init__
   self.handle()
  File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\http\server.py", line 418, in handle
   self.handle_one_request()
  File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\http\server.py", line 406, in handle_one_request
  method()
  File "webserver.py", line 14, in do_GET
   self.wfile.write(output)
  File "C:\Users\Jordan\AppData\Local\Programs\Python\Python36-32\lib\socketserver.py", line 775, in write
   self._sock.sendall(b)
  TypeError: a bytes-like object is required, not 'str'
  </code></pre>
  
  <hr>
  
  <p>anyone can help me?</p>