def delete(to_delete):
    """
    Unified "strong" version of delete (remove) for files and directories.

    Unified "strong" version of delete that uses `os.remove` for a file and 
    `shutil.rmtree` for a directory tree.

    **Parameters**

        **to_delete** :  string

            Path to a file or directory.

    **See Also:**

        `os <http://docs.python.org/library/os.html>`_, 
        `shutil <http://docs.python.org/library/shutil.html>`_

    """
    if os.path.isfile(to_delete):
        os.remove(to_delete)
    elif os.path.isdir(to_delete):
        shutil.rmtree(to_delete)