Letter count
============

Save all functions into the same file named ``count.py``.

#. Write the function :py:func:`count_up_low` that takes a text
   (string), and returns two intergers corresponding to the number of
   uppercase and lowercase letters in the text.

   See the following examples:

   .. literalinclude:: count1.txt
      :language: python3
      :lines: 3-

   .. note::
      More tests are provided in the :download:`count1.txt<count1.txt>` file.
   
#. Write the function :py:func:`vowels_perc` that takes a text
   (string), and returns the percentage of vowels with respect to the
   total number of characters in the text.
      
   See the following examples:

   .. literalinclude:: count2.txt
      :language: python3
      :lines: 3-

   .. note::
      More tests are provided in the :download:`count2.txt<count2.txt>` file.
   

.. rubric:: Solutions

A solution of these functions is provided in the
:download:`count.py<solutions/count.py>` file.