Colormap
========

The meteorology section of a newspaper assigns a color to each zone of
the map of Catalonia depending on its temperature. Now, only winter
temperatures are considered and the color is assigned with the
following rules:

- Below 0⁰: white 
- From 0⁰ (included) to 5⁰ (excluded): violet
- From 5⁰ (included) to 10⁰ (excluded):  dark blue
- From 10⁰ (included) to 15⁰C (excluded): sky blue
- Greater than or equal to 15⁰: green 

Write the function :py:func:`colormap` that takes a temperature
(float), and returns a string with the corresponding color.

Save this function into a file named ``colormap.py``.

See the following examples:
   
   .. literalinclude:: test-colormap.txt
      :language: python3
      :lines: 3-

   .. note::
      More tests are provided in the :download:`test-colormap.txt<test-colormap.txt>` file.

.. rubric:: Solution

A solution is provided in the
:download:`colormap.py<solutions/colormap.py>` file.