Here's an example piece of code that creates some files and
directories: 

.. code-block:: python

  import os

  def spew(path):
    with open(os.path.join(path, 'root.txt'), 'wb') as f:
        f.write(b'root output')
    os.mkdir(os.path.join(path, 'subdir'))
    with open(os.path.join(path, 'subdir', 'file.txt'), 'wb') as f:
        f.write(b'subdir output')
    os.mkdir(os.path.join(path, 'subdir', 'logs'))

This function is used as follows:

>>> spew(tempdir.path)

This will create the following files and directories::

  root.txt
  subdir/
  subdir/file.txt
  subdir/logs/
 
.. -> expected_listing

.. invisible-code-block: python

  # check the listing was as expected
  tempdir.compare(expected_listing.strip().split('\n'))