title: Can't seem to properly run python MSS library
body: <p>I am trying to learn the MSS python library to stream/reflect what's in the monitor. My intention is to use it with OpenCV to process the image. I got this source code from a youtube tutorial but I am getting the this error: (I can't solve this to run the code). Any tips and guidance are very much appreciated.</p>
  <pre><code>Traceback (most recent call last):
    File &quot;C:\Users\Ryan Webb\Documents\OpenCV-objectDetection\mss.py&quot;, line 4, in &lt;module&gt;
      from mss.windows import MSS as mss
    File &quot;C:\Users\Ryan Webb\Documents\OpenCV-objectDetection\mss.py&quot;, line 4, in &lt;module&gt;
      from mss.windows import MSS as mss
  ModuleNotFoundError: No module named 'mss.windows'; 'mss' is not a package
  </code></pre>
  <p>Here is the source code I copy-pasted from the tutorial:</p>
  <pre><code>from mss import mss
  import cv2
  from PIL import Image
  import numpy as np
  from time import time
  
  mon = {'top': 100, 'left':200, 'width':1600, 'height':1024}
  
  sct = mss()
  
  while 1:
      begin_time = time()
      sct_img = sct.grab(mon)
      img = Image.frombytes('RGB', (sct_img.size.width, sct_img.size.height), sct_img.rgb)
      img_bgr = cv2.cvtColor(np.array(img), cv2.COLOR_RGB2BGR)
      cv2.imshow('test', np.array(img_bgr))
      print('This frame takes {} seconds.'.format(time()-begin_time))
      if cv2.waitKey(25) &amp; 0xFF == ord('q'):
          cv2.destroyAllWindows()
          break
  </code></pre>
  <p>I think I properly installed the MSS library here is my pip list results:</p>
  <pre><code>C:\Users\Ryan Webb&gt;pip list
  Package           Version
  ----------------- --------
  astroid           2.6.5
  colorama          0.4.4
  isort             5.9.3
  lazy-object-proxy 1.6.0
  mccabe            0.6.1
  MouseInfo         0.1.3
  mss               6.1.0
  numpy             1.21.1
  opencv-python     4.5.3.56
  Pillow            8.3.1
  pip               21.1.3
  PyAutoGUI         0.9.53
  PyGetWindow       0.0.9
  pylint            2.9.6
  PyMsgBox          1.0.9
  pyperclip         1.8.2
  PyRect            0.1.4
  PyScreeze         0.1.27
  PyTweening        1.0.3
  pywin32           301
  setuptools        56.0.0
  toml              0.10.2
  wrapt             1.12.1
  WARNING: You are using pip version 21.1.3; however, version 21.2.3 is available.
  You should consider upgrading via the 'c:\program files\python39\python.exe -m pip install --upgrade pip' command.
  </code></pre>