Excellent_marks_2
=================

The marks of several students are saved in a dictionary
(:class:`dict`) where the key is the name of a student and the value
is a :class:`list` of 6 marks (:class:`float`): the first 5 of them
correspond to the marks of 5 subjects of first grade and the 6th value
is the average of the marks. We have also :class:`tuple` with the
names of the 5 subjects of first grade (:class:`str`), in the same
order that they appear in all the students lists in the
dictionary. Example:

   .. literalinclude:: test-excellents.txt
      :language: python3
      :lines: 3-9

Write the function :py:func:`cracks` that given a dictionary and a
tuple as described and the name of a file (:class:`str`), creates a
file with this name with those students who have excellent marks in
the given dictionary. In this file there is a line for each student
who has an excellent average mark and there is also a line for each
student and subject with an excellent mark. As the data comes from a
dictionary, lines in the file will be in the same arbitray order than
elements in the given dictionary. A mark is excellent if it is
between 9 and 10 (both included). The format of these two types of
lines will be:

| "The average mark of **name\_student** is **mark**" 

| "The mark of **name\_student** in **name\_subject** is **mark**"

Examples:

| "The average mark of Roser Puig Pi is 9.3"
| "The mark of Joan Pera Pla in Programming is 9.5"
| "The mark of Joan Pera Pla in Chemistry is 9.8"


Save the function in file ``cracks.py``.

   .. note::

      More tests are provided in the :download:`test-excellents.txt`
      
.. rubric:: Solutions

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