import face_recognition as fr

# Each face is tuple of (Name,sample image)    
known_faces = [('Obama','sample_images/obama.jpg'),
               ('Peter','sample_images/peter.jpg'),
              ]
    
def face_rec(file):
    """
    Return name for a known face, otherwise return 'Uknown'.
    """
    for name, known_file in known_faces:
        if compare_faces(known_file,file):
            return name
    return 'Unknown'