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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def FindDefaultFileDir():
 """Return the path of the directory containing the static files. By default the directory is called 'files'. The location depends on where setup.py put it."""

  base = FindPy2ExeBase()
  if base:
    return os.path.join(base, 'schedule_viewer_files')
  else:
    # For all other distributions 'files' is in the gtfsscheduleviewer
    # directory.
    base = os.path.dirname(gtfsscheduleviewer.__file__)  # Strip __init__.py
    return os.path.join(base, 'files')