title: mod_wsgi with python 3.4 get an error sequence of byte string values expected, value of type list found
body: <p>Im trying to return to the client mysql data and i get 
   mod_wsgi (pid=2304): Exception occurred processing WSGI script  TypeError: sequence of byte string values expected, value of type list found\r</p>
  
  <pre><code>    def application(environ, start_response):
  
      result = ChildClass().getValue()
      status = '200 OK'
      output =  result
  
      response_headers = [('Content-type', 'text/plain'),
                          ('Content-Length', str(len(output)))]
      start_response(status, response_headers)
  
      print(output)
      return [output]
  
  class ChildClass(): # define child class
     print('ppp')
     def __init__(self):
        print("Calling child constructor")
  
     def childMethod(self):
        print('Calling child method')
        #Parentclass().parentMethod()
  
     def getValue(self):
      # Open database connection
      db = mysql.connector.connect(user='root', password='55118',host='127.0.0.1',database='test')
      cursor = db.cursor()
      query = ("SELECT * from employees2")
      cursor.execute(query)
      #for (first_name) in cursor:
      return  cursor.fetchall()
  </code></pre>
  
  <p>How convert cursor.fetchall to bytes?</p>