code: def test_InvalidHTTP(self):
      url = invalid_httpurl()
      assert_raises(OSError, self.ds.open, url)
      try:
          self.ds.open(url)
      except OSError as e:
          # Regression test for bug fixed in r4342.
          assert_(e.errno is None)
  
imports: import os
  import pytest
  from tempfile import mkdtemp, mkstemp, NamedTemporaryFile
  from shutil import rmtree
  import numpy.lib._datasource
  from numpy.testing import assert_, assert_equal, assert_raises
  import urllib.request
  from urllib.parse import urlparse
  from urllib.error import URLError
label_desc: Use image node_id 4 for calling the TestDataSourceOpen obj's underlying member method code with example usage: obj.test_InvalidHTTP() without return types