old_contents: from PIL import Image, ImageDraw
  import face_recognition
  
  # Load the jpg file into a numpy array
  image = face_recognition.load_image_file("biden.jpg")
  
  # Find all facial features in all the faces in the image
  face_landmarks_list = face_recognition.face_landmarks(image)
  
  print("I found {} face(s) in this photograph.".format(len(face_landmarks_list)))
  
  for face_landmarks in face_landmarks_list:
  
      # Print the location of each facial feature in this image
      for facial_feature in face_landmarks.keys():
          print("The {} in this face has the following points: {}".format(facial_feature, face_landmarks[facial_feature]))
  
      # Let's trace out each facial feature in the image with a line!
      pil_image = Image.fromarray(image)
      d = ImageDraw.Draw(pil_image)
  
      for facial_feature in face_landmarks.keys():
          d.line(face_landmarks[facial_feature], width=5)
  
      pil_image.show()
  
new_contents: from PIL import Image, ImageDraw
  import face_recognition
  
  # Load the jpg file into a numpy array
  image = face_recognition.load_image_file("two_people.jpg")
  
  # Find all facial features in all the faces in the image
  face_landmarks_list = face_recognition.face_landmarks(image)
  
  print("I found {} face(s) in this photograph.".format(len(face_landmarks_list)))
  
  # Create a PIL imagedraw object so we can draw on the picture
  pil_image = Image.fromarray(image)
  d = ImageDraw.Draw(pil_image)
  
  for face_landmarks in face_landmarks_list:
  
      # Print the location of each facial feature in this image
      for facial_feature in face_landmarks.keys():
          print("The {} in this face has the following points: {}".format(facial_feature, face_landmarks[facial_feature]))
  
      # Let's trace out each facial feature in the image with a line!
      for facial_feature in face_landmarks.keys():
          d.line(face_landmarks[facial_feature], width=5)
  
  # Show the picture
  pil_image.show()
  
subject: Tweak demo to show multiple faces in one window instead of separate windows