16.1. OOP Class Define¶

Object Oriented Paradigm
Model world as objects that interacts with each other
Classes are templates for objects
PascalCase name convention
Never print in a class

class¶: Templates for objects.

16.1.1. Classes¶

Classes are templates for objects

Classes should have capitalized name:

>>> class User:
...     pass

16.1.2. Class Names¶

PascalCase name convention

Multi-word class names should use PascalCase:

>>> class SuperUser:
...     pass

16.1.3. Good Practices¶

Never print in a class
All classes in one file - when classes are short
One class per file - when classes are long

You can mix classes and functions in one file:

>>> def say_hello():
...     pass
>>>
>>>
>>> class User:
...     pass

16.1.4. Use Case - 0x01¶

>>> class Guest:
...     pass
>>>
>>>
>>> class User:
...     pass
>>>
>>>
>>> class Admin:
...     pass

16.1.5. Assignments¶

Code 16.1. Solution¶

"""
* Assignment: OOP Class Define A
* Type: class assignment
* Complexity: easy
* Lines of code: 2 lines
* Time: 2 min

English:
    1. Define class `Iris`
    5. Run doctests - all must succeed

Polish:
    1. Zdefiniuj klasę `Iris`
    5. Uruchom doctesty - wszystkie muszą się powieść

Tests:
    >>> import sys; sys.tracebacklimit = 0
    >>> from inspect import isclass

    >>> assert isclass(Iris)
"""

Code 16.2. Solution¶

"""
* Assignment: OOP Class Define B
* Type: class assignment
* Complexity: easy
* Lines of code: 4 lines
* Time: 2 min

English:
    1. Define class `Astronaut`
    2. Define class `SpaceAgency`
    5. Run doctests - all must succeed

Polish:
    1. Zdefiniuj klasę `Astronaut`
    2. Zdefiniuj klasę `SpaceAgency`
    5. Uruchom doctesty - wszystkie muszą się powieść

Tests:
    >>> import sys; sys.tracebacklimit = 0
    >>> from inspect import isclass

    >>> assert isclass(Astronaut)
    >>> assert isclass(SpaceAgency)
"""