title: ImportError: cannot import name _overlapped
body: <p>I am trying to start a test case via cmd . 
  The framework I am using for building the test cases is robot framework coded with Python. and when I initiate the test by inserting the command line I get the following :</p>
  
  <pre><code>[ ERROR ] Error in file 'C:\Jenkins\workspace\Robot\EMS_Automation\RobotSuits\runner_test_HReqMod_Blocking.robot': Importing test library 'C:\Jenkins\workspace\Robot\EMS_Automation\Modules\EMS_Tests\HReqModTests.py' failed: ImportError: cannot import name _overlapped
  Traceback (most recent call last):
    File "C:\Jenkins\workspace\Robot\EMS_Automation\Modules\EMS_Tests\HReqModTests.py", line 8, in &lt;module&gt;
      from EMS_Handlers.FileHandler import FileHandler
    File "C:\Jenkins\workspace\Robot\EMS_Automation\Modules\EMS_Handlers\FileHandler.py", line 15, in &lt;module&gt;
      from EMS_Handlers.RequestsHandler import RequestsHandler
    File "C:\Jenkins\workspace\Robot\EMS_Automation\Modules\EMS_Handlers\RequestsHandler.py", line 7, in &lt;module&gt;
      import requests,pyshark,socket
    File "C:\Python27\lib\site-packages\pyshark\__init__.py", line 1, in &lt;module&gt;
      from pyshark.capture.live_capture import LiveCapture
    File "C:\Python27\lib\site-packages\pyshark\capture\live_capture.py", line 3, in &lt;module&gt;
      import trollius as asyncio
    File "C:\Python27\lib\site-packages\trollius\__init__.py", line 11, in &lt;module&gt;
      import selectors  # Will also be exported.
    File "C:\Python27\lib\site-packages\trollius\selectors.py", line 14, in &lt;module&gt;
      from .py33_exceptions import wrap_error, InterruptedError
    File "C:\Python27\lib\site-packages\trollius\py33_exceptions.py", line 83, in &lt;module&gt;
      from trollius import _overlapped
  </code></pre>
  
  <p>what is the cause and the solution for this problem? 
  I am using python 2.7.17 ; robotframework 3.1.2</p>