Palindromes (3.5 points)
========================

A `palindrome <https://en.wikipedia.org/wiki/Palindrome>`__ word is a
word that reads the same backwards as forwards, i.e., that reads the
same when reversed. Examples: ``'rotor'`` and ``'noon'`` are
palindrome words.

Write function :py:func:`palindromes` that takes a :py:class:`list` of
words (:py:class:`str`) and returns another :py:class:`list` with
those words in the given list that are palindromes and have an odd
number of letters. The returned list must be **sorted**
lexicographically.

**Hint:** A possible solution uses the fact that the reverse of a string ``s`` can be obtained with the expression ``s[::-1]``

Save this function in file ``palindromes.py``.

Examples:

.. literalinclude:: test-palindromes.txt
      :language: python
      :lines: 3-13

.. note::

   More tests are provided in file :download:`test-palindromes.txt`.