old_contents: #!/usr/bin/env python
  from __future__ import unicode_literals, print_function
  import argparse
  import ffmpeg
  import sys
  
  
  parser = argparse.ArgumentParser(description='Extract video thumbnail')
  parser.add_argument('in_filename', help='Input filename')
  parser.add_argument('out_filename', help='Output filename')
  parser.add_argument(
      '--time', type=int, default=0.1, help='Time offset')
  parser.add_argument(
      '--width', type=int, default=120,
      help='Width of output thumbnail (height automatically determined by aspect ratio)')
  
  
  def generate_thumbnail(in_filename, out_filename, time, width):
      try:
          (
              ffmpeg
              .input(in_filename, ss=time)
              .filter_('scale', width, -1)
              .output(out_filename, vframes=1, format='image2', vcodec='mjpeg')
              .run(capture_stdout=True, capture_stderr=True, overwrite_output=True)
          )
      except ffmpeg.Error as e:
          print(e.stderr.decode(), file=sys.stderr)
  
  
  if __name__ == '__main__':
      args = parser.parse_args()
      generate_thumbnail(args.in_filename, args.out_filename, args.time, args.width)
  
new_contents: #!/usr/bin/env python
  from __future__ import unicode_literals, print_function
  import argparse
  import ffmpeg
  import sys
  
  
  parser = argparse.ArgumentParser(description='Generate video thumbnail')
  parser.add_argument('in_filename', help='Input filename')
  parser.add_argument('out_filename', help='Output filename')
  parser.add_argument(
      '--time', type=int, default=0.1, help='Time offset')
  parser.add_argument(
      '--width', type=int, default=120,
      help='Width of output thumbnail (height automatically determined by aspect ratio)')
  
  
  def generate_thumbnail(in_filename, out_filename, time, width):
      try:
          (
              ffmpeg
              .input(in_filename, ss=time)
              .filter_('scale', width, -1)
              .output(out_filename, vframes=1)
              .run(capture_stdout=True, capture_stderr=True, overwrite_output=True)
          )
      except ffmpeg.Error as e:
          print(e.stderr.decode(), file=sys.stderr)
  
  
  if __name__ == '__main__':
      args = parser.parse_args()
      generate_thumbnail(args.in_filename, args.out_filename, args.time, args.width)
  
subject: Fix get_video_thumbnail example