Choir 2
=======
Save all functions into the same file named ``choir2.py``.

A choir has stored the information of its singers in a file. In each
line of this file there are three data, separated by the character
``&``: the name, the voice (soprano, alto, tenor or bass)b both
:class:`str`, and a Boolean (:class:`bool`) showing whether the singer
can act as a soloist (``True``) or not (``False``). You can download
file :download:`choir2.txt` with an example, which is partially shown
here:

  .. literalinclude:: choir2.txt
     :language: python3
     :lines: 1-4

#. Write the function :py:func:`gigs` that takes a name of a file as
   described (:class:`str`), a voice (:class:`str`) and an integer,
   ``n``, (:class:`int`) and returns a Boolean (:class:`bool`) which a
   value of ``True`` if there are at least ``n`` singers with the
   given voice that can act as soloists and ``False``
   otherwise. Examples:
   
   .. literalinclude:: test-gigs.txt
      :language: python3
      :lines: 3-

   .. note::

      You can download the file with tests :download:`test-gigs.txt<test-gigs.txt>`.

#. Write the function :py:func:`dicc_soloists` that takes a name of a
   file as described (:class:`str`), and returns a dictionary
   (:class:`dict`), where the key is a voice (:class:`str`) and the
   value is a :class:`list` with those singer's names (:class:`str`)
   with this voice and that can act as soloists. The dictionary must
   be complete and its lists must be in alphabetical order. Examples:

   .. literalinclude:: test-soloists.txt
      :language: python3
      :lines: 3-

   .. note::

      You can download the file with tests :download:`test-soloists.txt<test-soloists.txt>` 

.. rubric:: Solutions

You have some solutions in the file :download:`choir2.py<solutions/choir2.py>`