title: Most used Python module for video processing?
body: <p>I need to:</p>
  
  <ol>
  <li>Open a video file</li>
  <li>Iterate over the frames of the file as images</li>
  <li>Do some analysis in this image frame of the video</li>
  <li>Draw in this image of the video</li>
  <li>Create a new video with these changes</li>
  </ol>
  
  <p>OpenCV isn't working for my webcam, but python-gst is working. Is this possible using python-gst?</p>
  
  <p>Thank you!</p>