[pyp-w2] Star Wars API

Today we will implement a client for the Star Wars API: https://swapi.co/ (a.k.a. swapi). See extra documentation about the API here: https://swapi.co/documentation

swapi is using a RESTful structure. It has well defined "groups" of data, also known as resources (ie: people, planets, starships, etc). Each resource has its own URL path. There are URLs used for LISTing many objects of given resource (ie: /api/people/), and other for getting the details of one particular object of the resource (ie: /api/people/1/).

We will concentrate in two particular resources: People and Films. For each of them, we will need to create a model class able to query and present the data. You must respect the following interface:

>>> luke = People.get(1)
>>> str(luke)
"Person: Luke Skywalker"
>>> luke.name
"Luke Skywalker"
>>> luke.birth_year
"19 BBY"

Resources must also implement a way of iterating through all objects. To do that, we will use the all() classmethod, which will return a QuerySet iterable object:

>>> qs = People.all()
>>> next(qs)
"Person: Luke Skywalker"
>>> next(qs)
"Person: C-3PO"

Iterative structures like for, while and list comprehensions must also be supported by QuerySets:

>>> len([person for person in People.all()])
87
>>> for person in People.all():
        print(person.name)
"Luke Skywalker"
"C-3PO"
...

QuerySets must implement an easy way of returning the amount of objects it contains:

>>> qs.count()
87

Feel free to expand the client behavior with extra functionality.