code: def read(cls, fname):
          
          # Open file
          fmt = op.splitext(fname)[1].lower()
          assert fmt in ('.obj', '.gz')
          opener = open if fmt == '.obj' else gzip_open
          with opener(fname, 'rb') as f:
              try:
                  reader = WavefrontReader(f)
                  while True:
                      reader.readLine()
              except EOFError:
                  pass
  
          # Done
          t0 = time.time()
          mesh = reader.finish()
          logger.debug('reading mesh took ' +
                       str(time.time() - t0) +
                       ' seconds')
          return mesh
docs: read(fname, fmt)
  
          This classmethod is the entry point for reading OBJ files.
  
          Parameters
          ----------
          fname : str
              The name of the file to read.
          fmt : str
              Can be "obj" or "gz" to specify the file format.