old_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  
  from __future__ import absolute_import
  
  import dask_distance._pycompat
  
  
  def test_irange():
      r = dask_distance._pycompat.irange(5)
  
      assert not isinstance(r, list)
  
      assert list(r) == [0, 1, 2, 3, 4]
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  
  from __future__ import absolute_import
  
  import dask_distance._pycompat
  
  
  def test_irange():
      r = dask_distance._pycompat.irange(5)
  
      assert not isinstance(r, list)
  
      assert list(r) == [0, 1, 2, 3, 4]
  
  
  def test_izip():
      r = dask_distance._pycompat.izip([1, 2, 3], ["a", "b", "c"])
  
      assert not isinstance(r, list)
  
      assert list(r) == [(1, 'a'), (2, 'b'), (3, 'c')]
  
subject: Add a test for izip