code: def track_from_filename(filename, filetype = None, timeout=DEFAULT_ASYNC_TIMEOUT, force_upload=False):
      
      filetype = filetype or filename.split('.')[-1]
      file_object = open(filename, 'rb')
      result = track_from_file(file_object, filetype, timeout, force_upload)
      file_object.close()
      return result
docs: Create a track object from a filename.
  
      NOTE: Does not create the detailed analysis for the Track. Call
      Track.get_analysis() for that.
  
      Args:
          filename: A string containing the path to the input file.
          filetype: A string indicating the filetype; Defaults to None (type determined by file extension).
          force_upload: skip the MD5 shortcut path, force an upload+analysis
  
      Example:
          >>> t = track.track_from_filename("Miaow-01-Tempered-song.mp3")
          >>> t
          < Track >
          >>>