Description:

softwarepatterns 2.0.0

A Python package with common Software Design Patterns.


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Documentation: https://software-patterns.readthedocs.io/en/master
Source Code: https://github.com/boromir674/software-patterns/tree/master
CI/CD: https://circleci.com/gh/boromir674/software-patterns/



Overview
This repository hosts the open-source code of the Software Patterns project.
The project’s main component is the software-patterns python package hosted on Pypi at https://pypi.org/project/software-patterns
It also features online Documentation Pages hosted at https://software-patterns.readthedocs.io/ and
a public CI workflow hosted on CircleCI.
What are Software Design Patterns?
Software Engineers are employing various designs and solutions to solve their problems.
The emerging (software) patterns, among the code solutions, targeting reoccuring problems have been studied and
formalized in terms of how they are used, what problem they solve and why they are a fit candidate to solve it.
These code designs, which are frequently found in various code bases, are known as Software Design Patterns.
The software-patterns package exposes a set of Python Classes that allow convient usage of common
Software Design Patterns.
Design Patterns implemented:

Notification (aka Broadcast/Listener pattern)
Object Pool (aka Memoize)
Classes Registry (aka Abstract Factory)
Proxy


Installation
Install from the Pypi server:
pip install software-patterns


Quickstart
Example code to use the factory pattern in the form of a (sub) class registry:
from software_patterns import SubclassRegistry

class MyClassRegistry(metaclass=SubclassRegistry):
pass

@MyClassRegistry.register_as_subclass('a')
class ClassA:
def __init__(self, number):
self.attr = number

@MyClassRegistry.register_as_subclass('b')
class ClassB:
def __init__(self, number):
self.attr = number - 1

assert MyClassRegistry.subclasses == {'a': ClassA, 'b': ClassB}

instance_a = MyClassRegistry.create('a', 10)
assert type(instance_a) == ClassA
assert instance_a.attr == 10

assert isinstance(instance_a, ClassA)

instance_b = MyClassRegistry.create('b', 10)
assert type(instance_b) == ClassB
assert instance_b.attr == 9

assert isinstance(instance_b, ClassB)

License

For personal and professional use. You cannot resell or redistribute these repositories in their original state.

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