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flyhigher139flyhigher139
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Merge pull request #1 from faif/master
add new content from faif's python-patterns
2 parents ee37556 + dc29feb commit 43992f1

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‎.gitignore‎

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__pycache__

‎3-tier.py‎

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if __name__ == '__main__':
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main()
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### OUTPUT ###
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# PRODUCT LIST:
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# eggs
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# milk
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# cheese
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#
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# PRODUCT INFORMATION:
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# Name: Cheese, Price: 2.00, Quantity: 10
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# PRODUCT INFORMATION:
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# Name: Eggs, Price: 0.20, Quantity: 100
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# PRODUCT INFORMATION:
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# Name: Milk, Price: 1.50, Quantity: 10
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# That product "arepas" does not exist in the records

‎README.md‎

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python-patterns
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===============
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A collection of design patterns implemented (by other people) in python
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A collection of design patterns implemented (by other people) in python.
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When an implementation is added or modified, be sure to update this file and
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rerun `append_output.sh` to keep the output comments at the bottom up to date.
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Current Patterns:
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* 3-tier
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* composite
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* 3-tier
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* abstract_factory
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* adapter
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* borg
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* bridge
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* builder
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* catalog
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* chain
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* command
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* composite
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* decorator
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* facade
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* factory_method
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* flyweight
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* graph_search
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* iterator
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* mediator
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* memento
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* mvc
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* decorator
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* null
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* facade
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* observer
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* abstract_factory
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* factory_method
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* pool
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* adapter
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* flyweight
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* prototype
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* borg
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* proxy
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* bridge
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* graph_search
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* publish_subscribe
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* state
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* builder
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* iterator
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* strategy
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* chain
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* mediator
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* template
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* command
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* memento
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* visitor
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* publish_subscribe

‎__pycache__/facade.cpython-33.pyc‎

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‎__pycache__/mediator.cpython-33.pyc‎

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‎__pycache__/null.cpython-33.pyc‎

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‎abstract_factory.py‎

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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# http://ginstrom.com/scribbles/2007/10/08/design-patterns-python-style/
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"""Implementation of the abstract factory pattern"""
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shop.pet_factory = get_factory()
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shop.show_pet()
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print("=" * 20)
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### OUTPUT ###
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# This is a lovely Dog
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# It says woof
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# It eats dog food
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# ====================
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# This is a lovely Cat
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# It says meow
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# It eats cat food
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# ====================
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# This is a lovely Dog
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# It says woof
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# It eats dog food
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# ====================

‎adapter.py‎

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# http://ginstrom.com/scribbles/2008/11/06/generic-adapter-class-in-python/
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""http://ginstrom.com/scribbles/2008/11/06/generic-adapter-class-in-python/"""
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import os
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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main()
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### OUTPUT ###
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# A Dog goes woof!
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# A Cat goes meow!
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# A Human goes 'hello'
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# A Car goes vroom!!!

‎append_output.sh‎

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#!/bin/bash
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set -e
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src=$(sed -n -e '/### OUTPUT ###/,$!p' "$1")
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output=$(python "$1" | sed 's/^/# /')
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# These are done separately to avoid having to insert a newline, which causes
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# problems when the text itself has '\n' in strings
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echo "$src" > $1
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echo -e "\n### OUTPUT ###" >> $1
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echo "$output" >> $1

‎borg.py‎

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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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class Borg:
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__shared_state = {}
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rm1.state = 'Idle'
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rm2.state = 'Running'
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print('rm1:', rm1)
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print('rm2:', rm2)
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print('rm1: {0}'.format(rm1))
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print('rm2: {0}'.format(rm2))
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rm2.state = 'Zombie'
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print('rm1:', rm1)
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print('rm2:', rm2)
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print('rm1: {0}'.format(rm1))
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print('rm2: {0}'.format(rm2))
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print('rm1 id:', id(rm1))
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print('rm2 id:', id(rm2))
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print('rm1 id: {0}'.format(id(rm1)))
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print('rm2 id: {0}'.format(id(rm2)))
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rm3 = YourBorg()
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print('rm1:', rm1)
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print('rm2:', rm2)
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print('rm3:', rm3)
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print('rm1: {0}'.format(rm1))
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print('rm2: {0}'.format(rm2))
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print('rm3: {0}'.format(rm3))
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### OUTPUT ###
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# rm1: Running
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# rm2: Running
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# rm1: Zombie
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# rm2: Zombie
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# rm1 id: 139825262601040
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# rm2 id: 139825262601104
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# rm1: Zombie
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# rm2: Zombie
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# rm3: Zombie

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