text: #!/usr/bin/env python3
  
  
  # Copyright (c) Facebook, Inc. and its affiliates.
  # This source code is licensed under the MIT license found in the
  # LICENSE file in the root directory of this source tree.
  
  import parlai.core.build_data as build_data
  import os
  
  
  MULTINLI_BASE_URL = 'https://www.nyu.edu/projects/bowman/multinli/'
  
  
  def build(opt):
      dpath = os.path.join(opt['datapath'], 'MultiNLI')
      version = '1.0'
  
      if not build_data.built(dpath, version_string=version):
          print('[building data: ' + dpath + ']')
  
          if build_data.built(dpath):
              # an older version exists, so remove these outdated files.
              build_data.remove_dir(dpath)
          build_data.make_dir(dpath)
  
          # download the data.
          fname = 'multinli_' + version + '.zip'
          # dataset URL
          url = MULTINLI_BASE_URL + fname
          build_data.download(url, dpath, fname)
  
          # uncompress it
          build_data.untar(dpath, fname)
  
          # mark the data as built
          build_data.mark_done(dpath, version_string=version)
  