content: """Fixture module to skip the datasets loading when offline
  
  Mock urllib2 access to mldata.org and create a temporary data folder.
  """
  
  from os import makedirs
  from os.path import join
  import numpy as np
  import tempfile
  import shutil
  
  from sklearn import datasets
  from sklearn.utils.testing import install_mldata_mock
  from sklearn.utils.testing import uninstall_mldata_mock
  
  
  def globs(globs):
      # Create a temporary folder for the data fetcher
      global custom_data_home
      custom_data_home = tempfile.mkdtemp()
      makedirs(join(custom_data_home, 'mldata'))
      globs['custom_data_home'] = custom_data_home
      return globs
  
  
  def setup_module():
      # setup mock urllib2 module to avoid downloading from mldata.org
      install_mldata_mock({
          'mnist-original': {
              'data': np.empty((70000, 784)),
              'label': np.repeat(np.arange(10, dtype='d'), 7000),
          },
          'iris': {
              'data': np.empty((150, 4)),
          },
          'datasets-uci-iris': {
              'double0': np.empty((150, 4)),
              'class': np.empty((150,)),
          },
      })
  
  
  def teardown_module():
      uninstall_mldata_mock()
      shutil.rmtree(custom_data_home)
  