Google Directions API, Full App
===============================


Contents
--------

.. toctree::
   :maxdepth: 1


Indices and tables
------------------

* :ref:`genindex`
* :ref:`modindex`
* :ref:`search`


Exercise
--------

For this week, the goal is to create a direction printing function that does the following:

    * It should accept a parsed json dictionary from last week's function.

    * It should return a formatted string with travel instructions:
        
        * Include the instructions, distant and duration
        
        * Also include the manuever, but replace it with an appropriate unicode arrow!
        
            * A good reference for unicode arrows is `here <https://en.wikipedia.org/wiki/Arrows_(Unicode_block)>`_, though note that not all of them will render correctly.
       

This will require using the :py:func:`str.format()` function.


On completion of this exercise, you should have a finished application that does the following:

* Accepts the arguments outlined in part 1 from the command lines

* Support the output and load arguments outlined in part 3

* Print each step of a trip including arrows instead of text manuevers


Hints
-----

To help you get started, here is one possible signature for the output function:

.. literalinclude:: directions_app.py
   :language: python3
   :lines: 145-149
   

Additionally, here is the bottom of the file, where the function calls are to the file is run:

.. literalinclude:: directions_app.py
   :language: python3
   :lines: 183-
   

Solution
--------

When you are ready to see one possible solution, try :download:`this file <directions_app.py>`