First step: Write a command interpreter to manage your AirBnB objects.
This is the first step towards building your first full web application:
the AirBnB clone. Each task is linked and will help you to:
-
Put in place a parent class (called BaseModel) to take care of the initialize
-
Create a simple flow of serialization/deserialization
-
Create all classes used for AirBnB that inherit from BaseModel
-
Create the first abstracted storage engine of the project: File storage.
-
Create all unittests to validate all our classes and storage engine
What’s a command interpreter?
Do you remember the Shell? It’s exactly the same but limited to a specific use-case.
In our case, we want to be able to manage the objects of our project:
-
Create a new object (ex: a new User or a new Place)
-
Retrieve an object from a file, a database etc…
-
Do operations on objects (count, compute stats, etc…)
-
Update attributes of an object
-
Destroy an object
At the end of this project, you are expected to be able to explain to anyone,
without the help of Google:
##General
-
How to create a Python package
-
How to create a command interpreter in Python using the cmd module
-
What is Unit testing and how to implement it in a large project
-
How to serialize and deserialize a Class
-
How to write and read a JSON file
-
How to manage datetime
-
What is an UUID
-
What is "*args" *and how to use it
-
What is **kwargs **and how to use it
-
How to handle named arguments in a function
Your shell should work like this in interactive mode:
$ ./console.py
:) help
Documented commands (type help <topic>):
========================================
EOF help quit
:)
:)
:) quit
$
But also in non-interactive mode: (like the Shell project in C)
$ echo "help" | ./console.py
:)
Documented commands (type help <topic>):
========================================
EOF help quit
:)
$
$ cat test_help
help
$
$ cat test_help | ./console.py
:)
Documented commands (type help <topic>):
========================================
EOF help quit
:)
$